International Journal of Environmental Analytical Chemistry最新文献

{"title":"Effect of soil properties on adsorption, degradation and leaching potential of four herbicides","authors":"Pervinder Kaur, Harshdeep Kaur, Makhan Singh Bhullar","doi":"10.1080/03067319.2023.2279284","DOIUrl":"https://doi.org/10.1080/03067319.2023.2279284","url":null,"abstract":"ABSTRACTOnce a herbicide is introduced into the environment, some risks are inevitable as it can trigger accumulation, leaching and runoff, thus contaminating soil and water resources. For a proper risk assessment, the present study investigates the adsorption, degradation and leaching behaviour of pretilachlor, butachlor, anilofos and pendimethalin. Among the studied herbicides, pendimethalin (KFads 1.466 ± 0.087 to 2.569 ± 0.072 µg1–1/n g−1 ml1/n; DT50 65.34–120.29 days) has the highest adsorption and persistence in soil, followed by anilofos (KFads 0.967 ± 0.063 to 1.637 ± 0.077 µg1–1/n g−1 ml1/n; DT50 37.12–77.63 days), butachlor (KFads 0.722 ± 0.077 to 1.273 ± 0.067 µg1–1/n g−1 ml1/n; DT50 31.23–65.13 days) and pretilachlor (KFads 0.834 ± 0.066 to 1.422 ± 0.071 µg1–1/n g−1 ml1/n; DT50 26.32–61.36 days). Pretilachlor, butachlor, anilofos and pendimethalin leached up to 40–60, 30–40, 20–30 and 10–20 cm soil layers, respectively, indicating that pendimethalin was least mobile in the studied soils. Increase in simulated rainfall (300 mm) increased the downward mobility of herbicides. Among different soils, herbicide degradation and leaching were highest in loamy sand and decreased with an increase in organic matter (OM) content, while adsorption was lowest in loamy sand and increased with an increase in OM content. The addition of farmyard manure amendment reduced the mobility of pretilachlor, butachlor, pendimethalin and anilofos, and these leached up to 20–30, 20–30, 0–10 and 10–20 cm soil layers, respectively. The results indicated that organic amendments can be used as an effective management practice for controlling groundwater contamination.KEYWORDS: Leaching risksimulated rainfallsoil typeorganic amendmentGUS index AcknowledgmentsThe authors would like to acknowledge the Directorate of Weed Science Research, Jabalpur, and Punjab Agricultural University, Ludhiana, for providing the necessary research facilities.Disclosure statementNo potential conflict of interest was reported by the author(s).Supplementary dataSupplemental data for this article can be accessed online at https://doi.org/10.1080/03067319.2023.2279284.","PeriodicalId":13973,"journal":{"name":"International Journal of Environmental Analytical Chemistry","volume":"18 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136347824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The simultaneous measurement of atomoxetine, venlafaxine, and duloxetine in actual water and biological samples requires the creation of a unique magnetic dispersive micro solid phase extraction sorbent based on MOF-on-MOF","authors":"Aysir Alhmaunde, Mahboubeh Masrournia, Ali Javid","doi":"10.1080/03067319.2023.2276344","DOIUrl":"https://doi.org/10.1080/03067319.2023.2276344","url":null,"abstract":"ABSTRACTAtomoxetine, venlafaxine, and duloxetine are three antidepressant drugs widely prescribed to treat this disorder. Determining these drugs is a major challenge due to their low concentration and high matrix effects on biological samples. Dispersive micro solid phase extraction was developed as a sample preparation strategy to extract these drugs in real water and biological samples. A novel sorbent containing a magnetic MOF-on-MOF was prepared to extract these drugs using Fe3O4 nanoparticle and Sol-gel technique. The microextraction procedure was optimised under two steps using experimental design. Three factors, including pH, sorbent amount, and desorption solvent volume, significantly affected the extraction of analytes and optimised using a central composite design. The optimum value of pH, sorbent amount, and desorption solvent volume was 29 mg, 6.5, and 150 µL. Under optimum conditions, the linear ranges for measuring atomoxetine, venlafaxine, and duloxetine in water samples were 1.42–496, 0.43–472, and 0.73–459 ng mL−1, respectively. The detection limits of atomoxetine, venlafaxine, and duloxetine were 0.4, 0.1, and 0.2 ng mL−1. High and proper preconcentration factors ranged from 462.4–511.4 in distiled water samples and 450.7–489.8 in urine samples were obtained to determine atomoxetine, venlafaxine, and duloxetine with three concentrations of 5.0, 20.0, and 100.0 ng mL−1, respectively. Inter-day and intra-day RSD% were calculated by triplicate determination of atomoxetine, venlafaxine, and duloxetine at three concentrations of 10.0, 50.0 and 100.0 ng mL−1 and were between 3.2–4.3% and 3.8–4.6% in distiled water samples, and 4.8–5.7% and 5.0–5.8% in urine samples, respectively. Analysis of tap, river water, and two urine samples as real water and biological samples under optimum conditions exhibited recovery and standard deviation in the ranges of 90.2–96.9% and 3.84–5.74%, respectively, confirmed the proper ability of the method to determine atomoxetine, venlafaxine, and duloxetine in natural water and biological samples.KEYWORDS: Antidepressant drugsdispersive micro solid phase extractionMOF-on-MOFbiological samplesexperimental designmagnetic sorbent AcknowledgmentsThe authors express their appreciation with the Research Council of Islamic Azad University of Mashhad, Iran for financial support.Disclosure statementNo potential conflict of interest was reported by the author(s).Compliance with ethical standardsThe study has been carried out under the institutional and/or national research committee’s ethical standards and with the 1964 Helsinki declaration and its later amendments or comparable Ethical standards.CRediT authorship contribution statementAysir Alhmaunde: Writing e original draft, Investigation, Methodology, Data curation, Formal analysis, Resources.Mahboubeh Masrournia: Conceptualisation, Investigation, Writing e review & editing.Ali Javid: Conceptualisation, Investigation, Writing e review & editing.Supplementary dat","PeriodicalId":13973,"journal":{"name":"International Journal of Environmental Analytical Chemistry","volume":"25 12","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136347690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dispersive solid phase extraction using zinc oxide graphitic carbon nitride as sorbent followed by dispersive liquid–liquid microextraction for the determination of organochlorine pesticides from fruit juice samples","authors":"Bereket Tesfaye, Abera Gure, Tsegaye Girma Asere","doi":"10.1080/03067319.2023.2269384","DOIUrl":"https://doi.org/10.1080/03067319.2023.2269384","url":null,"abstract":"ABSTRACTIn the present work, we proposed a novel method; dispersive solid-phase extraction followed by dispersive liquid–liquid microextraction for selective extraction and preconcentration of organochlorine pesticides in fruit juice samples. Parameters affecting the performances of both extraction steps have been rigorously studied and optimized. For the dispersive solid-phase extraction, zinc oxide-graphite carbon nitride was used as a sorbent for the first time. In the extraction, 100 mg of the sorbent was added to an aqueous solution. The content was then vortexed thoroughly to disperse the sorbent into the sample solution and to enhance the transfer of the analytes to the extraction phase (sorbent). The extracted analytes were then desorbed using 500 μL methanol. Subsequently, for the dispersive liquid-liquid microextraction, 50 μL of chloroform (as an extractant) was added to methanol-desorbed analytes and then rapidly injected into 5 mL deionised water. After centrifuging, 35 μL of the sedimented phase was withdrawn into an auto-sampler vial, and then 1 μL was injected into a gas chromatography-mass spectroscopy analysis. Under the optimum conditions, the proposed method showed satisfactory analytical performance characteristics: linearity ranging from 0.1–10.24 µg/L with coefficients of determinations (R2) from 0.9948–0.9995; The limit of detections ranging from 0.004–0.01 µg/L; intra- and inter-day precisions expressed as relative standard deviations ranging from 1.1–7.8%, and extraction recoveries varying from 80.8–109.2%. Generally, the proposed method is selective and efficient for the extraction and preconcentration of the target analytes from fruit juices and related matrices.KEYWORDS: Organochlorine pesticidesdispersive solid phase extractiondispersive liquid–liquid microextractionzinc oxide-graphite carbon nitridefruit juices AcknowledgmentsWe are grateful to the College of Natural Sciences, Jimma University for the financial support. Tesfaye, B also acknowledges Dire Dawa University for sponsoring his PhD study.Disclosure statementNo potential conflict of interest was reported by the author(s).","PeriodicalId":13973,"journal":{"name":"International Journal of Environmental Analytical Chemistry","volume":" 38","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135241997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Liquid chromatography - high-resolution quadrupole time-of-flight mass spectrometry analysis of pesticides in French agricultural soils","authors":"Giovanni Caria, Baghdad Ouddane, Sopheak Net, Nicolas Proix, Claire Froger","doi":"10.1080/03067319.2023.2277881","DOIUrl":"https://doi.org/10.1080/03067319.2023.2277881","url":null,"abstract":"ABSTRACTAgricultural soils are not controlled in France for the massive use of pesticides. The quadrupole mass spectrometer is used for targeted analysis of a few dozen pesticides, while the high-resolution time-of-flight quadrupole mass spectrometer (QTOF-MS) allows both targeted and non-targeted analysis of hundreds of pesticides. In this study, a targeted method was developed in soils using pressurised-liquid extraction (PLE) and liquid chromatography (LC) coupled with a QTOF-MS. This method development was necessary to carry out next suspect and non-target screening in soils and has been validated for triazines, phenylureas and emerging pesticides in soils. The internal calibration of pesticides was validated for low levels (0.5 to 12.5 µg L−1) and high levels (12.5 to 400 µg L−1) using labelled internal standards. The determination coefficient (R2) of calibration curve of each pesticide was greater than 0.99. Excepted DCPU and IPPU, the mean recoveries of pesticides in five reference soils spiked at 40 µg kg−1 and 10 µg kg−1 were greater than 93.5% and 106.2%, and the variation coefficients lower than 14.7% and 22.5%, respectively. So, multiplier factors were applied to the quantification results of DCPU and IPPU, respectively, 2.5 and 1.7 for correction. This validated method has been applied to a selection of 40 French soils of Centre-Val de Loire region. The limit of quantification (LOQ) of pesticides varied between 0.005 and 0.175 µg kg−1 in soils. Seven pesticides were the most detected in soils. Seventeen pesticides were detected between 10 and 50% of cases and very low detection frequencies (<10%) were found for 10 pesticides in soils. The mean concentrations were 0.730 µg kg−1 dw for triazines, 1.367 µg kg−1 dw for phenylureas and 7.638 µg kg−1 dw for emerging pesticides. DCPMU and epoxiconazole were detected in all the 40 soils.KEYWORDS: Pesticidessoilpressurised-liquid extractionliquid chromatographytime-of-flightmass spectrometry AcknowledgmentsColleagues of INRAE Info&Sols in Orléans (France), responsible for the French Soil Quality Monitoring Network (RMQS), are gratefully acknowledged for providing the soil samples and informations about their agricultural uses and phytosanitary treatments.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work was supported by ‘AgroEcoSystem’, a scientific department of INRAE (National Research Institute for Agriculture, Food and Environment).","PeriodicalId":13973,"journal":{"name":"International Journal of Environmental Analytical Chemistry","volume":"8 1‐2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135392360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Source, fate and transfer of primordial radionuclides as potential contaminants in environmental matrices of high and low background radiation areas – a critical review","authors":"Bharathi Santhanabharathi, Kumara Perumal Pradhoshini, Munawar Suhail Ahmed, Marckasagayam Priyadharshini, Mohamat Hanifa Shafeeka Parveen, Lubna Alam, Ismail Md Mofizur Rahman, Van Hao Duong, Mehraj Ud Din War, Mohamed Saiyad Musthafa","doi":"10.1080/03067319.2023.2277891","DOIUrl":"https://doi.org/10.1080/03067319.2023.2277891","url":null,"abstract":"ABSTRACTThe source, fate and transport of pollutants are of typical interest in environmental chemistry, which focuses on the presence and effects of chemicals in soil and water bodies. In this setting, minimising pollutant sources and limiting pollution generation are key factors in achieving environmental sustainability. Over the past few decades, novel approaches were devised by researchers across the world to resolve disputes related to major pollutions in soil, air and water bodies. However, there is still a need to address the research interest in radionuclides as contaminants. The first step in addressing concerns related to radionuclide contamination would be to develop complete knowledge and a database on the accumulation, transport rate, and fate of radionuclides in both natural high background radiation areas and other locations of the world. The current review is an attempt to provide information about this, where it briefs out the A.C, C.R. and T.F of the parental radionuclides (238U, 232Th, 40K) and their progeny nuclides (210Po and 210Pb) in various media (soil, sediments, rock, and water), as well as in the food chains of aquatic environments close to areas contaminated with radionuclides. It discusses the disagreements around radio-isotopes in these regions and draws attention to the threat it poses to the local biota and population. Exceeding concentration of radionuclides than the recommended reference level in such areas shall open up possible opportunity of conducting epidemiological studies related to the health effects of the inhabitants. It shall also pave a way for initiating future research activities destined in formulation of remedial measures for the welfare of biodiversity.KEYWORDS: Radionuclidessedimentsoilwateraquatic biotageochemical transfer AcknowledgmentsThe authors are thankful to the Chairman, Honourable Secretary & Correspondent, Principal, Vice-Principals (Academic & Administration) P.G. & Research Department of Zoology, The New College (Autonomous), Chennai for Institutional support. We profoundly thank Department of Science and Technology – Science and Engineering Research Board (DST-SERB), Government of India, New Delhi for funding the project [File No.: ECR/2017/001268, dated 18.03.2019].Disclosure statementNo potential conflict of interest was reported by the author(s).Author’s contributionBharathi Santhanabharathi - Conceptualisation and design, Data curation, Kumara Perumal Pradhoshini – Conceptualisation and design, Manuscript preparation – writing original manuscript, Munawar Suhail Ahmed – Data curation, Manuscript preparation – review and editing, Marckasagayam Priyadharshini – Manuscript preparation – review and editing, Mohamat Hanifa Shafeeka Parveen – Manuscript preparation – review and editing, Lubna Alam – statistical analysis and data interpretation, Ismail Md Mofizur Rahman – statistical analysis and data interpretation, Van Hao Duong – Imaging analysis, Mehraj Ud Din War – Table preparat","PeriodicalId":13973,"journal":{"name":"International Journal of Environmental Analytical Chemistry","volume":"2 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135476044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Determination of manganese(II) using adapalene as a novel chromogenic reagent","authors":"Z. M. Saigl, O. A. Aljuaid","doi":"10.1080/03067319.2023.2273335","DOIUrl":"https://doi.org/10.1080/03067319.2023.2273335","url":null,"abstract":"ABSTRACTThis study was focused on testing and evaluating the adapalene drug as a novel and selective chromogenic reagent for estimating the manganese in biological (blood plasma), pharmaceutical (syrup) and drinking water samples. The limit of detection and quantification were 0.0448 and 0.1492 μg mL−1, respectively. The effective molar absorptivity (ε) was 2.0297 × 104 L.mol−1.cm−1. The method’s sensitivity was 4.2786 × 10−4 μg cm−2 without interference with the common ions. The results demonstrated that the stability constant of the [Mn(II) – ADP] complex was 3.7238 × 107. An excellent and perfect recovery percentage of manganese(II) was achieved in tested samples, which ranged from (98–100%), (99–105%), and (97–101%) in blood plasma, medicated syrup and drinking water, respectively. Moreover, the developed method was validated by the reference ICP-OES method. The results revealed perfect compatibility between the results obtained by the developed and ICP-OES method.KEYWORDS: Adapaleneblood plasmadrinking watermanganesepharmaceutical sampleUV-VIS spectroscop Disclosure statementNo potential conflict of interest was reported by the author(s).","PeriodicalId":13973,"journal":{"name":"International Journal of Environmental Analytical Chemistry","volume":"8 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135479978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Adsorption isotherm and kinetic analysis of molecularly imprinted polymer with two functional monomers for quantification of atrazine","authors":"Najihah Rameli, Amanatuzzakiah Abdul Halim, Saeda Jannah Kushairi, Nuur Fahanis Che Lah","doi":"10.1080/03067319.2023.2277888","DOIUrl":"https://doi.org/10.1080/03067319.2023.2277888","url":null,"abstract":"ABSTRACTThe extensive use of atrazine as a pesticide in agricultural practices poses a significant risk to the environment and human health. Atrazine, when applied to plants, has the potential to migrate through the soil and contaminate groundwater sources. Consequently, there is an urgent need to explore alternative methods for detecting atrazine. This study aimed to investigate the quantification of atrazine using molecularly imprinted polymer (MIP) and to assess the adsorption performance and kinetics of the MIPs using various isotherm and kinetic adsorption models. MIP was synthesised with two distinct functional monomers: methacrylic acid (MAA) and acrylamide (AA). Computational analysis was employed to estimate the binding affinity of these monomers towards atrazine. Subsequently, results from adsorption capacity study indicated a higher binding affinity for MAA compared to AA with values of 0.92 mg/g and 0.48 mg/g, respectively. These findings aligned with the simulated data from the docking analysis. Moreover, the adsorption mechanism of atrazine towards MIP-MAA and MIP-AA was best represented by Jovanovic model, followed by the Langmuir, Freundlich and Linear models. While for kinetics analysis, the Elovich model was chosen as the best fit. In conclusion, the selection of the functional monomer is of utmost importance in designing MIPs as it facilitates specific interactions with analyte molecules and enhances the performance of the MIPs.KEYWORDS: Molecularly imprinted polymeratrazineadsorption isothermfunctional monomerbinding affinity Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis research was supported by IIUM Research Initiative Grant Scheme (Flagship) 2019 [IRF19-006-0006] from the Ministry of Higher Education, Malaysia.","PeriodicalId":13973,"journal":{"name":"International Journal of Environmental Analytical Chemistry","volume":"48 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135476319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of Cd, Hg, pb, Zn and Ni in selected cosmetic products: risk assessment for human health","authors":"G. A. E. Mostafa, A. Alasiri, H. AlRabiah, M. F. El-Tohamy","doi":"10.1080/03067319.2023.2259314","DOIUrl":"https://doi.org/10.1080/03067319.2023.2259314","url":null,"abstract":"ABSTRACTThe ICP-MS method was used to determine the concentrations of five heavy metals: Cadmium (Cd), lead (Pb), zinc (Zn), mercury (Hg), and nickel (Ni). A total of 36 samples of cosmetic products (makeup, eye shadow, and mascara) of various brands were chosen from those available in Riyadh, Saudi Arabia. Several analytical parameters, such as accuracy, precision, linearity, the lower limit of quantification (LOQ), and the lower limit of detection (LOD), were assessed to determine the validity of the proposed method. The determination of Cd, Pb, Zn, Hg, and Ni was verified for accuracy and precision. The results of the determination of studied heavy metals concentration in cosmetic samples reveal that, the concentrations of Cd, Pb, Zn, Hg and Ni ranged from 0.03–0.53, 10.28–107.01, 14.49–867.12, 1.75–6.45 and 4.22–31.36 µg/g, respectively. In all samples of cosmetic products, the concentrations of Cd and Hg were deemed to be within the normal range. However, the concentration of Pb was higher than the recommended value by the World Health Organization (WHO). Nickel concentration was measured with a detection limit lower than the WHO recommended level, but no suggested value for Zn, which is critical for mitochondria, was found. Health risks related to these metal intakes through dermal exposure pathways are assessed using the total hazard quotient (THQs), total hazard index (HI), chronic daily intake (CDI), and hazard quotient (HQ). Despite the low risks of cancer and non-cancer caused by using these cosmetic products, testing results for cancer and non-cancer risks for these products must be regularly examined. Therefore, constant monitoring of cosmetic products, particularly with regard to heavy metal contamination, should be implemented to maintain human safety and security.KEYWORDS: Heavy metalcosmetovigilancehealth riskHQTHQsCDI AcknowledgmentsThe authors extend their appreciation to the Researchers Supporting Project, King Saud University, for funding this work through grant no. RSP2023R501Disclosure statementNo potential conflict of interest was reported by the author(s).Supplemental dataSupplemental data for this article can be accessed online at https://doi.org/10.1080/03067319.2023.2259314.Additional informationFundingThis research was funded by the Researchers Supporting Project, King Saud University, through grant no. RSP2023R501.","PeriodicalId":13973,"journal":{"name":"International Journal of Environmental Analytical Chemistry","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135725838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quantum leap for electroanalysis: graphene dots take electrochemical sensing to the next level","authors":"Dihua Wu, Jiangwei Zhu, Li Fu","doi":"10.1080/03067319.2023.2278752","DOIUrl":"https://doi.org/10.1080/03067319.2023.2278752","url":null,"abstract":"ABSTRACTGraphene quantum dots (GQDs) have emerged as promising nanomaterials for electrochemical sensing due to their unique optical, electronic and catalytic properties. GQDs can be synthesised using top-down and bottom-up approaches, with green synthesis gaining popularity. The size, surface chemistry and doping of GQDs affect their electrochemical performance for sensing applications. GQDs enhance electron transfer and provide catalytic sites for signal amplification in electrochemical sensors for diverse analytes including neurotransmitters, biomarkers, metal ions and pollutants. However, challenges remain in improving GQD synthesis yield, property control, sensor stability and selectivity. This review summarises recent advances in GQD synthesis methods, strategies for property modulation, and applications in electrochemical sensors for biomedical, environmental and food analysis. The unique properties of GQDs that enable enhanced sensitivity and selectivity of sensors are discussed. Future research directions to address current challenges and realise the full potential of GQDs for next-generation sensor technology are also presented.KEYWORDS: Graphene quantum dotselectrochemical sensingpropertiesapplicationssensorsbiosensors Disclosure statementNo potential conflict of interest was reported by the author(s).","PeriodicalId":13973,"journal":{"name":"International Journal of Environmental Analytical Chemistry","volume":"104 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135726079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Measurements of some radionuclides in coffee samples using gamma-ray spectrometry and evaluating radiological health risk to the Turkish public","authors":"Erkan Kırıs, Ömer Zilan","doi":"10.1080/03067319.2023.2271845","DOIUrl":"https://doi.org/10.1080/03067319.2023.2271845","url":null,"abstract":"","PeriodicalId":13973,"journal":{"name":"International Journal of Environmental Analytical Chemistry","volume":"410 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136069476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}