Analytical Sciences最新文献_第3页

Comparison of dissolved iodine measurements in seawater between inductively coupled plasma mass spectrometry and voltammetry. 比较电感耦合等离子体质谱法和伏安法对海水中溶解碘的测量。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2024-09-01 Epub Date: 2024-05-28 DOI: 10.1007/s44211-024-00602-x

Yuhi Satoh, Yoshihito Ohtsuka

{"title":"Comparison of dissolved iodine measurements in seawater between inductively coupled plasma mass spectrometry and voltammetry.","authors":"Yuhi Satoh, Yoshihito Ohtsuka","doi":"10.1007/s44211-024-00602-x","DOIUrl":"10.1007/s44211-024-00602-x","url":null,"abstract":"Two analytical methods, inductively coupled plasma mass spectrometry (ICP-MS) combined with high-performance liquid chromatography (HPLC) and voltammetry (VM), for three chemical species of dissolved iodine (iodide, iodate, and total dissolved iodine: TDI) were compared for dozens of coastal seawater samples owing to the compatibility of data between both methods. The median differences in the measured concentrations of TDI, total inorganic dissolved iodine (TII, the sum of iodide and iodate), and iodate between ICP-MS and VM were equivalent to 9.2, 13, and 14%, respectively. These differences were within the ranges that could be explained by the repeated-measurement precision of each measurement method for TDI, TII, and iodate. The difference for iodide was 19%, which was larger than the value based on the repeated-measurement precision for both methods. This is considered to be caused by the chemical instability and lower concentrations of iodide compared to other iodine species in seawater, in addition to the heterogeneity of natural samples. Finally, both methods provided reasonable measurement values for the iodine concentration in natural seawater samples.","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141157821","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}

引用次数: 0

Fundamental investigation on fluorous nanoemulsion optodes: effect of matrix fluorination on selectivity. 荧光纳米乳液光刻胶的基础研究：基质氟化对选择性的影响。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2024-09-01 Epub Date: 2024-05-25 DOI: 10.1007/s44211-024-00603-w

Soraka Iwamoto, Kenji Sueyoshi, Tatsuro Endo, Hideaki Hisamoto

{"title":"Fundamental investigation on fluorous nanoemulsion optodes: effect of matrix fluorination on selectivity.","authors":"Soraka Iwamoto, Kenji Sueyoshi, Tatsuro Endo, Hideaki Hisamoto","doi":"10.1007/s44211-024-00603-w","DOIUrl":"10.1007/s44211-024-00603-w","url":null,"abstract":"As fundamental investigation on fluorous nanoemulsion (NE) optodes for highly selective perfluorooctanesulfonate (PFOS-) sensing, the effect of matrix fluorination on selectivity was investigated. Due to the high hydrophobicity of PFOS- itself, it responded in exhaustive mode regardless of the fluorination ratio of the matrix, and the lowest detectable PFOS- concentration was on the order of 10-7 to 10-6 M. On the other hand, the response of non-fluorous interfering anions was suppressed as the fluorination ratio of the matrix increased. It was revealed that the relative selectivity of PFOS- for hydrophobic anions, ClO4-, SCN-, and 1-octanesulfonate (OS-) was improved by more than one order of magnitude, up to nearly two orders of magnitude, and that it was also improved by less than one order of magnitude for hydrophilic anions, Br-, Cl-, and SO4-, in logarithmic selectivity coefficient (log <math><msubsup><mi>K</mi> <mrow> <msup><mrow><mi>PFOS</mi></mrow> <mo>-</mo></msup> <mo>,</mo> <mi>j</mi></mrow> <mrow><mi>opt</mi></mrow> </msubsup> </math> ).","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141096827","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}

引用次数: 0

Optical lateral flow assays in early diagnosis of SARS-CoV-2 infection. 用于早期诊断 SARS-CoV-2 感染的光学横向流动测定。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2024-09-01 Epub Date: 2024-05-17 DOI: 10.1007/s44211-024-00596-6

Rushi Liang, Aiping Fan, Feiqian Wang, Yajing Niu

{"title":"Optical lateral flow assays in early diagnosis of SARS-CoV-2 infection.","authors":"Rushi Liang, Aiping Fan, Feiqian Wang, Yajing Niu","doi":"10.1007/s44211-024-00596-6","DOIUrl":"10.1007/s44211-024-00596-6","url":null,"abstract":"So far, the 2019 novel coronavirus (COVID-19) is spreading widely worldwide. The early diagnosis of infection by the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is essential to provide timely treatment and prevent its further spread. Lateral flow assays (LFAs) have the advantages of rapid detection, simple operation, low cost, ease of mass production, and no need for special devices and professional operators, which make them suitable for self-testing at home. This review focuses on the early diagnosis of SARS-CoV-2 infection based on optical LFAs including colorimetric, fluorescent (FL), chemiluminescent (CL), and surface-enhanced Raman scattering (SERS) LFAs for the detection of SARS-CoV-2 antigens and nucleic acids. The types of recognition components, detection modes used for antigen detection, labels employed in different optical LFAs, and strategies to improve the detection sensitivity of LFAs were reviewed. Meanwhile, LFAs coupled with different nucleic acid amplification techniques and CRISPR-Cas systems for the detection of SARS-CoV-2 nucleic acids were summarized. We hope this review provides research mentalities for developing highly sensitive LFAs that can be used in home self-testing for the early diagnosis of SARS-CoV-2 infection.","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140955543","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}

引用次数: 0

Molecular symmetry change of perfluoro-n-alkanes in 'Phase I' monitored by infrared spectroscopy. 通过红外光谱监测全氟烷烃在 "第一阶段 "的分子对称性变化。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2024-09-01 Epub Date: 2024-06-14 DOI: 10.1007/s44211-024-00611-w

Taisuke Araki, Takayuki Oka, Nobutaka Shioya, Takeshi Hasegawa

{"title":"Molecular symmetry change of perfluoro-n-alkanes in 'Phase I' monitored by infrared spectroscopy.","authors":"Taisuke Araki, Takayuki Oka, Nobutaka Shioya, Takeshi Hasegawa","doi":"10.1007/s44211-024-00611-w","DOIUrl":"10.1007/s44211-024-00611-w","url":null,"abstract":"Phase diagram of polytetrafluoroethylene (PTFE) comprises four regions. Phases II and IV are characterized by twisted perfluoroalkyl (Rf) chains having different twisting rate of 13/6 and 15/7, respectively, while Phase III is characterized by a planer trans-zigzag molecular skeleton like a normal alkyl chain. These are confirmed by X-ray and electron diffraction and have already been established. Unlike these, Phase I is left an unresolved matter. This phase is complicated indeed and is not symbolized by a single molecular structure. At an ambient pressure, Phase I is the temperature region above 30 ºC (303 K), and the helical molecular structure is supposed to be gradually untwisted with an elevating temperature. This untwisting image is roughly suggested by the diffraction, neutron scattering, and thermal expansion techniques, but the conventional approaches have all experimental limitations because the untwisting accompanies disorder (or defect) in the twist along the chain. To explore the transition between two different helical structures of the Rf chain having disordered structures, vibrational spectroscopic techniques are expected to be an alternative approach. For infrared spectroscopy, for example, the twisting rate of the molecule is simply recognized as a degree of molecular symmetry. Here, we show that the band progression peaks of the CF2 symmetric stretching vibration mode are quite sensitive and useful for pursuing the molecular symmetry change in Phase I for both peak intensity and position using perfluoro-n-alkanes having different chain length covering both even and odd number of the CF2 groups.","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11358247/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141316596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Two-step extraction for the evaluation of metal-organic framework impregnated materials. 评估金属有机框架浸渍材料的两步萃取法。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2024-09-01 Epub Date: 2024-05-29 DOI: 10.1007/s44211-024-00608-5

Mizuki Mukai, Reetu Rani, Nao Iwanaga, Kentaro Saeki, Kei Toda, Shin-Ichi Ohira

{"title":"Two-step extraction for the evaluation of metal-organic framework impregnated materials.","authors":"Mizuki Mukai, Reetu Rani, Nao Iwanaga, Kentaro Saeki, Kei Toda, Shin-Ichi Ohira","doi":"10.1007/s44211-024-00608-5","DOIUrl":"10.1007/s44211-024-00608-5","url":null,"abstract":"Metal-organic frameworks (MOFs) are widely used for gas adsorption, separation, and sensing materials. In most cases, MOFs are not used in their crystal form but as impregnated materials because the fine crystals result in high-pressure drops. One key characteristic of MOF-impregnated materials is the amount of MOF in the material. This is evaluated using the wet digestion method; however, it is limited to determining only the metal content. Moreover, some metal, denoted as free metal, will not react with ligands to form MOFs. Additionally, it is crucial to determine the ligand amount, which cannot be determined using wet digestion. In the present study, a two-step extraction method for copper (II) benzene-1,3,5-tricarboxylate (Cu-BTC MOF) impregnated materials was developed to determine the MOF formed and free metals and ligands. Various solvents were applied to evaluate the extraction efficiencies. The results led to the selection of ethanol (EtOH) for extracting free Cu2+ and BTC, while 0.3 M HNO3 was chosen to extract MOF-formed Cu2+ and BTC. The MOF-impregnated sample material was first extracted using EtOH and then 0.3 M HNO3. The Cu2+ and BTC in the obtained extract solutions, as well as EtOH and HNO3, were analyzed using flame atomic absorption spectroscopy and high-performance liquid chromatography, respectively. In standard addition tests, free and MOF-formed Cu2+ and BTC were quantitatively extracted from MOF-impregnated materials. The developed two-step analysis method was successfully applied to Cu-BTC-impregnated materials used in gas sensing.","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141160309","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}

引用次数: 0

An optimised and validated surrogate analyte A-TEEM-PARAFAC-PLS technique for detecting and quantifying the biological oxygen demand in surface water. 用于检测和量化地表水生物需氧量的优化和验证代用分析物 A-TEEM-PARAFAC-PLS 技术。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2024-09-01 Epub Date: 2024-06-01 DOI: 10.1007/s44211-024-00605-8

Thomas Ingwani, Nhamo Chaukura, Bhekie B Mamba, Thabo T I Nkambule, Adam M Gilmore

{"title":"An optimised and validated surrogate analyte A-TEEM-PARAFAC-PLS technique for detecting and quantifying the biological oxygen demand in surface water.","authors":"Thomas Ingwani, Nhamo Chaukura, Bhekie B Mamba, Thabo T I Nkambule, Adam M Gilmore","doi":"10.1007/s44211-024-00605-8","DOIUrl":"10.1007/s44211-024-00605-8","url":null,"abstract":"A 5-day test duration makes BOD5 measurement unsatisfactory and hinders the development of a quick technique. Protein-like fluorescence peaks show a strong correlation between the BOD characteristics and the fluorescence intensities. For identifying and measuring BOD in surface water, a simultaneous absorbance-transmittance and fluorescence excitation-emission matrices (A-TEEM) method combined with PARAFAC (parallel factor) and PLS (partial least squares) analyses was developed using a tyrosine and tryptophan (tyr-trpt) mix as a surrogate analyte for BOD. The use of a surrogate analyte was decided upon due to lack of fluorescent BOD standards. Tyr-trpt mix standard solutions were added to surface water samples to prepare calibration and validation samples. PARAFAC analysis of excitation-emission matrices detected the tyr-trpt mix in surface water. PLS modelling demonstrated significant linearity (R2 = 0.991) between the predicted and measured tyr-trypt mix concentrations, and accuracy and robustness were all acceptable per the ICH Q2 (R2) and ASTM multivariate calibration/validation procedures guidelines. Based on a suitable and workable surrogate analyte method, these results imply that BOD can be detected and quantified using the A-TEEM-PARAFAC-PLS method. Very positive comparability between tyr-trypt mix concentrations was found, suggesting that tyr-trypt mix might eventually take the place of a BOD-based sampling protocol. Overall, this approach offers a novel tool that can be quickly applied in water treatment plant settings and is a step in supporting the trend toward rapid BOD determination in waters. Further studies should demonstrate the wide application of the method using real wastewater samples from various water treatment facilities.","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141185666","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}

引用次数: 0

Photostability evaluation of manidipine tablets and structural determination of its photoproducts. 马尼地平片剂的光稳定性评价及其光生成物的结构测定。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2024-09-01 Epub Date: 2024-06-11 DOI: 10.1007/s44211-024-00613-8

Kohei Kawabata, Kyoka Hirai, Shiori Akimoto, Masanori Inagaki, Hiroyuki Nishi

{"title":"Photostability evaluation of manidipine tablets and structural determination of its photoproducts.","authors":"Kohei Kawabata, Kyoka Hirai, Shiori Akimoto, Masanori Inagaki, Hiroyuki Nishi","doi":"10.1007/s44211-024-00613-8","DOIUrl":"10.1007/s44211-024-00613-8","url":null,"abstract":"Manidipine (MP) is a dihydropyridine drug, which is treated for the reduction of high blood pressure. The aim of this study is to clarify the photochemical behavior of MP in the case of ultraviolet light (UV) irradiation for MP tablets (Calslot® tablets). The tablets and its altered forms (powders and suspensions) were UV-irradiated using a black light, and residual amounts of active pharmaceutical ingredients (APIs) were monitored by high-performance liquid chromatography (HPLC). Due to the photoproducts of MP were detected in HPLC chromatograms, the elucidation of their chemical structures was carried out utilizing electrospray ionization tandem mass spectrometry (LC-ESI-MS/MS). As a result, APIs in Calslot® tablets were almost completely photodegraded in the case that Calslot® tablets were suspended in an aqueous media along with the generation of some MP photoproducts. LC-ESI-MS/MS analysis clarified the chemical structures of three MP photoproducts, indicating that they were a pyridine analogue, benzophenone and a hydrolysate. Benzophenone was a main MP photoproduct. It was possible that MP might be firstly oxidized to form its pyridine analogue, followed by the oxidation of a dimethyl methylene moiety. This moiety seemed to be eliminated as a benzophenone, and the cleavage of an ester bond of the residual moiety resulted in the generation of a hydrolysate. Finally, toxicological potencies of MP and its photoproducts were predicted in silico toxicity evaluation, suggesting some of biological effects of the photoproducts might be altered compared with MP.","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141299839","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}

引用次数: 0

Application of on-line sample preconcentration by large-volume dual preconcentration by isotachophoresis and stacking (LDIS) on straight-channel microchips. 在直通道微芯片上应用大容量同向电泳和堆积双预浓缩（LDIS）在线样品预浓缩技术。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2024-09-01 Epub Date: 2024-05-16 DOI: 10.1007/s44211-024-00597-5

Fumihiko Kitagawa, Kazuki Takahashi, Reina Osanai, Ryota Sasaki, Takayuki Kawai

{"title":"Application of on-line sample preconcentration by large-volume dual preconcentration by isotachophoresis and stacking (LDIS) on straight-channel microchips.","authors":"Fumihiko Kitagawa, Kazuki Takahashi, Reina Osanai, Ryota Sasaki, Takayuki Kawai","doi":"10.1007/s44211-024-00597-5","DOIUrl":"10.1007/s44211-024-00597-5","url":null,"abstract":"In this study, large-volume dual preconcentration by isotachophoresis and stacking (LDIS) which is an on-line sample preconcentration technique coupling large-volume sample stacking with an electroosmotic flow pump (LVSEP) with transient isotachophoresis (tITP) was applied to microchip electrophoresis (MCE) for improving both detection sensitivities and peak shapes. To realize LDIS in MCE, we investigated experimental procedures for injecting a short plug of a leading electrolyte (LE) solution into a straight microchannel without any sophisticated injector apparatus. We found that a short LE plug could be injected into a sample-filled straight-channel only by making the liquid level of the LE solution in an outlet reservoir higher than that in an inlet one. By applying a reversed-polarity voltage to the microchip, anionic analytes injected throughout the microchannel were first enriched by LVSEP, followed by tITP. Through the second preconcentration effect by tITP in LDIS, sensitivity enhancement factor (SEF) and asymmetry factor for a standard dye were improved from 878 and 0.62 to 1330 and 1.14, respectively, relative to those in conventional LVSEP. It should be noted that more viscous running buffer containing sieving polymers could be employed to the LDIS analysis, which was effective for improving the SEF and the separation efficiencies, especially for bio-polymeric compounds. Finally, LDIS was applied to the oligosaccharide and protein analyses in MCE, resulting in the SEFs of 1410 and ca. 50 for maltotriose and bovine milk casein, respectively.","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140943791","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}

引用次数: 0

Study of reactive dyes and their hydrolyzed forms in a real trichromatic dyeing process by capillary electrophoresis with UV detection. 利用毛细管电泳和紫外检测法研究实际三色染色过程中的活性染料及其水解形式。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2024-09-01 Epub Date: 2024-05-30 DOI: 10.1007/s44211-024-00600-z

Zijie Lu, Jiashun Xu, Zhongqi Xu, Yi Zhong, Zhiping Mao, Weidong Meng

{"title":"Study of reactive dyes and their hydrolyzed forms in a real trichromatic dyeing process by capillary electrophoresis with UV detection.","authors":"Zijie Lu, Jiashun Xu, Zhongqi Xu, Yi Zhong, Zhiping Mao, Weidong Meng","doi":"10.1007/s44211-024-00600-z","DOIUrl":"10.1007/s44211-024-00600-z","url":null,"abstract":"Detecting the concentration of reactive dyes and their hydrolyzed products is essential for controlling the dyeing process and is an important guide for upgrading and improving textile dyeing technology. In this study, capillary electrophoresis (CE) with UV detection was for the first time applied in a real trichromatic dyeing process to provide qualitative and quantitative determination of reactive dyes and their hydrolyzed forms. Here, three original reactive dyes (SES-Cl-red-195, SES-Cl-yellow-145, and SES-Cl-blue-194), their vinyl sulfone forms (VS-Cl-red-195, VS-Cl-yellow-145, and VS-Cl-blue-194), and complete hydrolyzed forms (HES-OH-red-195, HES-OH-yellow-145, and HES-OH-blue-194) could be baseline separated in our developed BGE comprised of 10.0 mol/L Na2B4O7, 15% (V/V) ACN at pH 8.50 that adjusted by 0.50 mol/L H3BO3. The LODs (S/N = 3) of nine analytes ranged from 0.3 to 1.3 mg/L, and high sensitivities were achieved with UV detection. The RSDs of peak area and migration time were in the ranges of 1.4-3.8% and 0.39-1.29%, which indicated the CE methods were reliable for studying different dye forms in complex dye baths, and for evaluating dyeing process quality. Thus, the percentage of dye-uptake in single and trichromatic combination dyes was calculated based on the concentration of the original and their vinyl sulfone and hydrolyzed forms, and the result was consistent with the traditional UV-Vis method.","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141174273","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}

引用次数: 0

Reusable magnetic molecular imprinted polymers based on magnetic graphene oxide for selective identification and detection of eugenol in environmental water samples. 基于磁性氧化石墨烯的可重复使用磁性分子印迹聚合物，用于选择性识别和检测环境水样中的丁香酚。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2024-09-01 Epub Date: 2024-05-25 DOI: 10.1007/s44211-024-00601-y

Ou Sha, Yunfan Wu, Xincheng Dai, Huiwen Li, Yuan Xu, Ziwen Wang, Pu Zhang

{"title":"Reusable magnetic molecular imprinted polymers based on magnetic graphene oxide for selective identification and detection of eugenol in environmental water samples.","authors":"Ou Sha, Yunfan Wu, Xincheng Dai, Huiwen Li, Yuan Xu, Ziwen Wang, Pu Zhang","doi":"10.1007/s44211-024-00601-y","DOIUrl":"10.1007/s44211-024-00601-y","url":null,"abstract":"In this study, a reliable method for determining eugenol content in environmental water samples was established by combining magnetic solid-phase extraction with high-performance liquid chromatography. Magnetic molecular imprinted polymers MGO@MIPs were prepared through surface molecular imprinting technique with eugenol as the template molecule. The material displayed good superparamagnetic properties and magnetic responsiveness in favor of rapid separation. The adsorption properties of MGO@MIPs for eugenol were evaluated through adsorption kinetics and selectivity experiments. MGO@MIPs were found to have favorable reusability and obvious selectivity for eugenol. In addition, adsorption and elution conditions were investigated. Under optimal conditions, a linear relationship was obtained between the concentration of eugenol and its peak area in the range of 0.02-5 mg/L (R2 = 0.9998) and the limit of detection was 4.0 × 10-6 mg/mL. The performance of the established method was assessed with the average recovery of 96.59-102.20% and the relative standard deviation (RSD) below 3.5%. The application of this method provides a new perspective for the separation, enrichment and detection of eugenol in water environment.","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141096829","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}

引用次数: 0