Journal of Analytical Chemistry最新文献_第2页

Influence of the Elemental Composition of Vineyard Soils on the Varietal and Regional Characteristics of Young Wines 葡萄园土壤元素组成对年轻葡萄酒品种和地域特征的影响

IF 1.5 4区化学

Journal of Analytical Chemistry Pub Date : 2026-09-24 DOI: 10.1134/S1061934826700784

A. G. Abakumov, Z. A. Temerdashev, O. N. Sheludko, E. Yu. Gipich, A. M. Vasiliev

{"title":"Influence of the Elemental Composition of Vineyard Soils on the Varietal and Regional Characteristics of Young Wines","authors":"A. G. Abakumov, Z. A. Temerdashev, O. N. Sheludko, E. Yu. Gipich, A. M. Vasiliev","doi":"10.1134/S1061934826700784","DOIUrl":"10.1134/S1061934826700784","url":null,"abstract":"To control the authenticity of wines based on geographic and varietal characteristics, relationships between the mineral composition of wine, grapes, and soil from the same growing area were identified. Grape samples of the Cabernet Sauvignon and Chardonnay varieties, grown and selected from three vineyards in the Anapa region of the Krasnodar krai, were studied. The mineralogical composition of the soil samples was studied using X-ray diffraction analysis and thermal analysis. The main phases were represented by calcite, quartz, feldspars, and clay minerals (illite and nontronite). The concentrations of Al, Ba, Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Na, Ni, Rb, Si, Sr, Ti, and Zn in soils, grapes, and wines were determined by spectrometric analysis with inductively coupled plasma. The distributions of total contet and mobile forms of elements in the soil profile were found different for K, Li, Mg, Fe, Cr, and Al. The concentrations of Na, Ca, and Sr increased with the depth of soil sampling, while the concentrations of Co, Ni, Cu, Pb, Fe, Zn, and Mn decreased. The results of elemental analysis of grape samples showed significant differences between different growing areas, although the differences between grape varieties were not as pronounced. The scatterplot of the values of canonical roots constructed based on the concentrations of elements using the discriminant analysis showed that grapes grown in different territories were localized in a certain part of the plane to form groups of homogeneous objects, that is, clusters. It was established that the nine elements Al, Ca, Cu, K, Mn, Na, Pb, Rb, and Sr can be used as predictors in the identification model of grapes.","PeriodicalId":606,"journal":{"name":"Journal of Analytical Chemistry","volume":"81 :","pages":"1489 - 1503"},"PeriodicalIF":1.5,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023019","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}

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Optimization of Sample Preparation in the Study of Urban Dust Nanoparticles by Single Particle Inductively Coupled Plasma Mass Spectrometry 单粒子电感耦合等离子体质谱法研究城市尘埃纳米颗粒样品制备的优化

IF 1.5 4区化学

Journal of Analytical Chemistry Pub Date : 2026-09-24 DOI: 10.1134/S1061934826700760

M. S. Ermolin, A. I. Ivaneev, N. N. Fedyunina, P. S. Fedotov

{"title":"Optimization of Sample Preparation in the Study of Urban Dust Nanoparticles by Single Particle Inductively Coupled Plasma Mass Spectrometry","authors":"M. S. Ermolin, A. I. Ivaneev, N. N. Fedyunina, P. S. Fedotov","doi":"10.1134/S1061934826700760","DOIUrl":"10.1134/S1061934826700760","url":null,"abstract":"Urban dust nanoparticles, which are extremely mobile in the environment and easily penetrate into living organisms, are important samples of ecoanalytical research. Single particle inductively coupled plasma mass spectrometry (SP-ICP-MS) is an effective method for studying anthropogenic nanoparticles. A critical step in an SP-ICP-MS analysis of environmental nanoparticles is sample preparation, which typically involves the preparation of suspensions and the extraction of nanoparticles from a polydisperse sample. This paper shows that the optimal ratio of dust sample to the extractant (water) for the separation of nanoparticles by centrifugation is 1 : 500. It was found that, for a study, it is advisable to take a 20-mg dust sample in 10 mL of water, at which the time spent for the extraction of nanoparticles is reduced and their mass concentrations can be determined with an average relative standard deviation no more than 34%. Using a standard sample of gold nanoparticles, the completeness of the extraction of nanoparticles from a polydisperse dust sample was estimated at 102 ± 4%. The optimized sample preparation method was tested using samples of urban dust from the city of Krasnoyarsk; the mass concentrations and median diameter of Cr-, Cu-, Zn-, Sn-, Sb-, W-, Pb-, and Bi-containing nanoparticles were determined.","PeriodicalId":606,"journal":{"name":"Journal of Analytical Chemistry","volume":"81 :","pages":"1468 - 1478"},"PeriodicalIF":1.5,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023042","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}

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Label-Free Fluorescence Aptasensor Based on Aptamer and SYBR Green I for Ciprofloxacin in Actual Samples 基于适体体和SYBR Green I的环丙沙星无标记荧光适体传感器

IF 1.5 4区化学

Journal of Analytical Chemistry Pub Date : 2026-09-24 DOI: 10.1134/S1061934826600381

Xin-Long Li, Zi-Yi Song, Jia-Le Cui, Wei-Chuang Kong, Xu-Ying Liu, Xiao-Lei Zhang, Yan-Fei Kang

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Polyvinyl Formaldehyde Thiourea Sorbent for Concentration and Atomic Emission Determination with Inductively Coupled Plasma of Cu(II), Cd(II), Pb(II), Zn(II), Ni(II) 聚乙烯醇-甲醛-硫脲吸附剂电感耦合等离子体测定Cu（II）、Cd（II）、Pb（II）、Zn（II）、Ni（II）的浓度和原子发射

IF 1.5 4区化学

Journal of Analytical Chemistry Pub Date : 2026-09-24 DOI: 10.1134/S1061934826700814

S. L. Didukh-Shadrina, D. I. Belyakovich, V. N. Losev, M. M. Kazik, R. M. Gulieva

{"title":"Polyvinyl Formaldehyde Thiourea Sorbent for Concentration and Atomic Emission Determination with Inductively Coupled Plasma of Cu(II), Cd(II), Pb(II), Zn(II), Ni(II)","authors":"S. L. Didukh-Shadrina, D. I. Belyakovich, V. N. Losev, M. M. Kazik, R. M. Gulieva","doi":"10.1134/S1061934826700814","DOIUrl":"10.1134/S1061934826700814","url":null,"abstract":"A polymer sorbent with thiourea groups (PVF-TU) is synthesized by copolymerizing polyvinyl alcohol with formaldehyde and thiourea. Its sorption properties for Cu(II), Cd(II), Pb(II), Zn(II), and Ni(II) are studied. In static mode, the sorbent quantitatively (degree of recovery >95%) extracts Cu(II) in the pH range of 3.0–7.0, Cd(II) at pH 4.0–7.0, and Zn(II) and Ni(II) at pH 5.5–7.0. The maximum degree of recovery of Pb(II) does not exceed 88% at pH 4.5–6.0. The time to establish sorption equilibrium is 10 min. The sorption capacity of PVF-TU is 150, 168, 110, 82, and 52 μmol/g for Cu(II), Zn(II), Ni(II), Cd(II), and Pb(II), respectively. The sorption isotherms are analyzed for their compliance with the Langmuir, Freundlich, and Dubinin–Radushkevich sorption models. It is shown that the extraction of metal ions by the sorbent occurs due to chemical interaction. In the dynamic concentration mode, quantitative extraction of metal ions is observed from 40 mL of solution at pH 6.0 and a solution flow rate of 0.5 mL/min. Quantitative desorption of all metal ions is achieved with 5 mL of 2 M HNO3 at 90°C. The developed procedure was used to determine metal ion content in the snow cover of Krasnoyarsk and in Latuca sativa plant samples. The accuracy of the obtained results was confirmed by the added-found method and ICP-MS analysis.","PeriodicalId":606,"journal":{"name":"Journal of Analytical Chemistry","volume":"81 :","pages":"1525 - 1533"},"PeriodicalIF":1.5,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023103","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}

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Application of Fluorescence Microscopy Combined with Magnetic Solid-Phase Extraction for the Identification and Determination of Microplastics in River Waters 荧光显微镜联合磁固相萃取法在河流水体中微塑料的鉴定与测定中的应用

IF 1.5 4区化学

Journal of Analytical Chemistry Pub Date : 2026-09-24 DOI: 10.1134/S1061934826700796

A. S. Gubin, P. T. Sukhanov, A. A. Kushnir, K. S. Sypko, I. E. Reshetov, Ya. D. Borisov

{"title":"Application of Fluorescence Microscopy Combined with Magnetic Solid-Phase Extraction for the Identification and Determination of Microplastics in River Waters","authors":"A. S. Gubin, P. T. Sukhanov, A. A. Kushnir, K. S. Sypko, I. E. Reshetov, Ya. D. Borisov","doi":"10.1134/S1061934826700796","DOIUrl":"10.1134/S1061934826700796","url":null,"abstract":"A method is proposed for the identification and determination of microplastics, which includes their extraction with a magnetic sorbent based on reversed-phase carbon, followed by determination by fluorescence microscopy. Polyethylene, polypropylene, polystyrene, polyvinyl chloride, polyethylene terephthalate, polyurethane, polycarbonate, and polyamide fibers (Nylon) were selected as test samples. The determination method was developed using model mixtures containing several microplastics of the same type. Model mixtures of microplastics aged using abiotic and biotic environmental factors were also used. Based on an analysis of solutions containing model mixtures, the performance characteristics of the developed method were estimated. Microplastics were stained using a solution of Eosin Na (Y) in isopropyl alcohol upon heating. High variability in color within a single type of microplastic has been found, which complicates the identification process. With aging, the fluorescence intensity of most polymers decreased. The presence of colored microplastics did not significantly affect the spectral characteristics and fluorescence intensity. The problems arising in establishing the limits of detection and determination due to the specifics of fluorescence microscopy are considered. The limits of detection for microplastics are between 1.0 and 5.0 µg/L. The method for the identification and detection of microplastics was tested using river water analysis as an example. It was found that polyethylene and polypropylene predominate in water bodies; their concentrations are 94 ± 33 and 43 ± 15 μg/L, respectively. Natural water also contains polyethylene terephthalate (5 ± 2 μg/L) and polycarbonate (8 ± 3 μg/L).","PeriodicalId":606,"journal":{"name":"Journal of Analytical Chemistry","volume":"81 :","pages":"1504 - 1514"},"PeriodicalIF":1.5,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149022984","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}

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A Validated Reverse-Phase High-Performance Liquid Chromatography Method for the Selective Resolution and Quantification of Co-Eluting Impurities in Fluticasone Furoate Drug Substance 一种有效的反相高效液相色谱法对糠酸氟替卡松原料药中共洗脱杂质的选择性分离和定量

IF 1.5 4区化学

Journal of Analytical Chemistry Pub Date : 2026-09-24 DOI: 10.1134/S1061934826700875

Ganesh Jerripothula, Popuri Ashok Kumar

{"title":"A Validated Reverse-Phase High-Performance Liquid Chromatography Method for the Selective Resolution and Quantification of Co-Eluting Impurities in Fluticasone Furoate Drug Substance","authors":"Ganesh Jerripothula, Popuri Ashok Kumar","doi":"10.1134/S1061934826700875","DOIUrl":"10.1134/S1061934826700875","url":null,"abstract":"Fluticasone furoate is a powerful synthetic corticosteroid belonging to the glucocorticoid category. It is widely used to treat respiratory and allergic conditions, including asthma, chronic obstructive pulmonary disease, and allergic rhinitis. This study aimed to separate specific co-eluted impurities in fluticasone furoate active pharmaceutical ingredients. The optimized reverse-phase high-performance liquid chromatography method demonstrated a novel, selective, and robust method for the simultaneous estimation of fluticasone furoate and its structurally related impurities (E, F, and G). Structurally related impurities were resolved using a Poroshell phenyl-hexyl column (100 × 4.6 mm, 2.7 μm). Mobile phase A contained 0.1% trifluoroacetic acid, and mobile phase B consisted of acetonitrile and methanol (80 : 20, v/v). Gradient elution was used at a flow rate of 1.0 mL/min. The wavelength was set at 245 nm, and the temperature was 50°C. The optimized method was validated according to the International Council for Harmonization Q2 (R1) guidelines and was linear across the concentration range of 0.05–0.75 μg/mL, with correlation coefficients r2 > 0.998. The limits of detection (0.016 μg/mL) and quantification (0.05 μg/mL) indicate that the method is sensitive for trace-level impurity determination. The accuracy (90 to 110%), precision (relative standard deviation < 5%), and robustness under deliberate variations in flow rate and temperature demonstrated reproducibility and reliability. This method was able to resolve previously co-eluted compounds in pharmacopoeial procedures, providing high resolution, specificity, and quantitative performance.","PeriodicalId":606,"journal":{"name":"Journal of Analytical Chemistry","volume":"81 :","pages":"1656 - 1666"},"PeriodicalIF":1.5,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023169","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}

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Molecular Recognition of Copper(II) Ions via Calix[4]resorcinarene Schiff Base (C4RSB): A Spectrophotometric and Extraction Study 杯状[4]间苯二甲酸席夫碱（C4RSB）对铜（II）离子的分子识别：分光光度和萃取研究

IF 1.5 4区化学

Journal of Analytical Chemistry Pub Date : 2026-09-24 DOI: 10.1134/S1061934825604268

Parin H. Kanaiya

{"title":"Molecular Recognition of Copper(II) Ions via Calix[4]resorcinarene Schiff Base (C4RSB): A Spectrophotometric and Extraction Study","authors":"Parin H. Kanaiya","doi":"10.1134/S1061934825604268","DOIUrl":"10.1134/S1061934825604268","url":null,"abstract":"This study reports the selective recognition, liquid–liquid extraction, and spectrophotometric determination of Cu(II) ions using a calix[4]resorcinarene Schiff base (C4RSB). The aims were to elucidate the complexation mechanism, optimize extraction parameters, and evaluate the analytical performance of the method for environmental sample analysis. UV-Vis and FTIR spectroscopic analyses revealed strong coordination of Cu(II) with the azomethine (–C=N–) and phenolic –OH groups of C4RSB. Job’s method and elemental analysis confirmed a 4 : 1 metal-to-ligand stoichiometry. Optimal extraction occurred at pH 5.0 using chloroform as the organic phase. The method exhibited a linear response within 0.5–9.0 µg/mL with a molar absorptivity of 1.42 × 104 L. Application to groundwater and surface-water samples showed good agreement with FAAS and ICP-AES results. In addition to liquid–liquid extraction, the carrier capability of C4RSB was demonstrated through liquid membrane transport experiments, highlighting its potential for selective Cu(II) separation and preconcentration applications. These findings demonstrate that C4RSB is a highly effective supramolecular receptor for Cu(II) and provides a rapid, selective, and sensitive platform for trace-level copper determination. Future work will focus on full analytical validation, greener extraction systems, and sensor-based applications.","PeriodicalId":606,"journal":{"name":"Journal of Analytical Chemistry","volume":"81 :","pages":"1580 - 1591"},"PeriodicalIF":1.5,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023106","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

Interaction between a Peroxotitanium Complex and Inorganic Phosphate, and Its Application to Urinary Citrate Determination 过氧钛配合物与无机磷酸盐的相互作用及其在尿柠檬酸盐测定中的应用

IF 1.5 4区化学

Journal of Analytical Chemistry Pub Date : 2026-09-24 DOI: 10.1134/S1061934826600058

Kyong-Il Yun, Won-Ju Chae, Tong-Sul Han, Hyong-Gwan Ri, Kyong-Su Sonu, Yong-Nam Kim

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Implementation of Capillary Electrochromatography with the Formation of Hydrophilic Coatings Based on Polyelectrolytes on the Walls of a Bare Fused Silica Capillary 在裸熔融石英毛细管壁上形成基于聚电解质的亲水涂层的毛细管电色谱的实现

IF 1.5 4区化学

Journal of Analytical Chemistry Pub Date : 2026-09-24 DOI: 10.1134/S1061934826700826

E. R. Ziangirova, E. A. Kolobova, E. V. Solovyova, L. A. Kartsova

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Composition and Concentrations of Phenolic Compounds in Various Extracts from Stevia (Stevia rebaudiana Bertoni) 甜菊叶（Stevia reaudiana Bertoni）不同提取物中酚类化合物的组成及浓度

IF 1.5 4区化学

Journal of Analytical Chemistry Pub Date : 2026-08-22 DOI: 10.1134/S1061934826700668

Z. A. Temerdashev, T. K. Chubukina, N. V. Kiseleva, T. G. Tsyupko

{"title":"Composition and Concentrations of Phenolic Compounds in Various Extracts from Stevia (Stevia rebaudiana Bertoni)","authors":"Z. A. Temerdashev, T. K. Chubukina, N. V. Kiseleva, T. G. Tsyupko","doi":"10.1134/S1061934826700668","DOIUrl":"10.1134/S1061934826700668","url":null,"abstract":"The composition and concentrations of phenolic compounds (PCs) in aqueous and water–ethanol extracts from the leaves of stevia (Stevia rebaudiana Bertoni) obtained by various extraction methods (maceration, microwave and ultrasound assisted and subcritical extraction, and refluxing) are discussed. The efficiency of PC extraction was assessed by the concentrations of individual compounds and their total yield. The chromatographic identification of PCs in the extracts was studied. Chromatographic determination of PCs in the extracts was carried out in the reversed phase mode on a column with silica gel modified with octadecyl groups. Neochlorogenic and chlorogenic acids, rutin, quercetin glycosides I and II containing various sugar residues, two dicaffeoylquinic acid isomers, and apigenin-7-glucoside were identified by comparing the chromatographic retention parameters of the components and the absorption spectra and mass spectra with similar characteristics of standard reference compounds and with published data. The concentrations of individual PCs extracted into water–ethanol extracts by different methods and from different geographical areas varied greatly. The antioxidant activity of water–ethanol and aqueous extracts from the samples of stevia leaves from different vendors was evaluated, and this evaluation showed different contributions of individual PCs to the value of antioxidant activity.","PeriodicalId":606,"journal":{"name":"Journal of Analytical Chemistry","volume":"81 :","pages":"1334 - 1346"},"PeriodicalIF":1.5,"publicationDate":"2026-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148807421","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