Journal of Analytical Chemistry最新文献

Quality Assessment of Methodological Aspects in Microplastics Studies on Processed Food 加工食品中微塑料研究方法学方面的质量评价

IF 1.1 4区化学

Journal of Analytical Chemistry Pub Date : 2025-09-23 DOI: 10.1134/S1061934825700819

Anizah Mahmod, Sarva Mangala Praveena

{"title":"Quality Assessment of Methodological Aspects in Microplastics Studies on Processed Food","authors":"Anizah Mahmod, Sarva Mangala Praveena","doi":"10.1134/S1061934825700819","DOIUrl":"10.1134/S1061934825700819","url":null,"abstract":"Interest in the presence of microplastics in processed food continues to grow, yet studies focusing on the methodological aspects, as well as quality assurance (QA) and quality control (QC) procedures, remain limited. Thus, this study focuses on the assessment of methodological aspects employed in microplastics in processed food studies using the Criteria for Reporting and Evaluating Ecotoxicity Data framework. A total of 65 processed food studies conducted between 2015 and 2025 were selected for this assessment. This assessment involved 14 criteria, categorized into three phases: pre-laboratory work, laboratory work, and post-laboratory work. One study achieved the highest score of 27 out of 28, with the average total score ranging from 20 to 24. The lowest overall score was 8. In the pre-laboratory work, the most frequently reported aspect was sample size. During the laboratory work, laboratory preparation received the lowest score of 2, and 49 studies scored 0 for positive controls. In the post-laboratory work, most studies provided particle characteristics; however, for polymer color, 16 studies received a score of 0. The steps taken in pre-laboratory and laboratory work directly impact the accuracy and validity of the data in the post-laboratory work. These scores further reflect the need for stricter QA and QC standards related to the methodological aspects. Future studies can use the current assessment of methodological aspects as a reference to obtain reliable and valid microplastic data, which will increase confidence in their use in toxicity assessments.","PeriodicalId":606,"journal":{"name":"Journal of Analytical Chemistry","volume":"80 :","pages":"1606 - 1627"},"PeriodicalIF":1.1,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145122416","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

Overview of Flow Injection, Chemiluminescence, and Spectrophotometric Methods for the Determination of Vitamin A 流动注射、化学发光和分光光度法测定维生素A的综述

IF 1.1 4区化学

Journal of Analytical Chemistry Pub Date : 2025-09-23 DOI: 10.1134/S1061934825700807

Muhammad Asghar, Mohammad Yaqoob, Masood Ahmed Siddiqui, Aimal Khan, Samar Ali

引用次数: 0

Preparation of Platinum Nanoclusters Using Acid Red G as a Stabilizer and Detection of Tetracycline 以酸性红G为稳定剂制备铂纳米团簇及四环素的检测

IF 1.1 4区化学

Journal of Analytical Chemistry Pub Date : 2025-09-23 DOI: 10.1134/S1061934825700844

Qian Sun, De Xing Chen, Yu Ting Tao, Xing Ping Yang, Yun Fei Long

{"title":"Preparation of Platinum Nanoclusters Using Acid Red G as a Stabilizer and Detection of Tetracycline","authors":"Qian Sun, De Xing Chen, Yu Ting Tao, Xing Ping Yang, Yun Fei Long","doi":"10.1134/S1061934825700844","DOIUrl":"10.1134/S1061934825700844","url":null,"abstract":"Platinum nanoclusters (PtNCs) with fluorescent properties have been prepared using Acid Red G as a stabilizer, potassium hexachloroplatinate as a precursor, and sodium borohydride as a reducing agent, with a reaction time of about 2 h. The optimal excitation wavelength of the synthesized PtNCs is 333 nm, and the optimal emission wavelength is 431 nm. It has been found that tetracycline (TC) can significantly quench the fluorescence of the synthesized PtNCs. A good linear relationship was observed between the quenching value (F0–F) of the PtNCs fluorescence intensity and the TC concentration in the range of 5.00–50.00 μM, with a correlation coefficient (r) of 0.9962. Thus, a fluorescence analysis method for measuring TC was established based on the above phenomenon, with a detection limit of 2.04 μM (3σ/k). The standard concentration of TC was added to tap water for spiked recovery experiments, the recovery rate was in the range of 97.37–100.03%, and the relative standard deviation ranged from 1.96 to 4.76%. This indicates that the established method has demonstrated feasibility for detecting TC content in water samples. Meanwhile, PtNCs were used as fluorescent probes to achieve visual quantitative detection of TC concentration using smartphones and colorimetric analysis software.","PeriodicalId":606,"journal":{"name":"Journal of Analytical Chemistry","volume":"80 :","pages":"1647 - 1655"},"PeriodicalIF":1.1,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145122413","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

Innovative Dual-Technique Approach to Levofloxacin Assay: Spectrophotometric Chelation and Microfluidic Paper-Based System for Enhanced Pharmaceutical Quality Control 创新的左氧氟沙星双技术测定方法：分光光度螯合和微流体纸基系统加强药品质量控制

IF 1.1 4区化学

Journal of Analytical Chemistry Pub Date : 2025-09-23 DOI: 10.1134/S1061934825700820

Teeba D. Khamis, Raed F. Hassan

{"title":"Innovative Dual-Technique Approach to Levofloxacin Assay: Spectrophotometric Chelation and Microfluidic Paper-Based System for Enhanced Pharmaceutical Quality Control","authors":"Teeba D. Khamis,  Raed F. Hassan","doi":"10.1134/S1061934825700820","DOIUrl":"10.1134/S1061934825700820","url":null,"abstract":"This study introduces a dual-technique strategy for levofloxacin quantification, combining ultraviolet-visible spectrophotometry and a microfluidic paper-based analytical device (µPAD) to address the need for cost-effective, precise pharmaceutical quality control. Leveraging the reaction between levofloxacin and chlorophenol red, both methods form a colored complex (λmax = 574 nm) via an acid-base interaction stabilized by electrostatic and hydrogen bonding. The spectrophotometric method demonstrates high sensitivity (limit of detection (LOD): 2.50 µg/mL, linear range: 5–100 µg/mL) with robust intra-day (relative standard deviation (RSD): 0.946–1.730%) and inter-day precision (RSD: 1.401–2.198%), alongside recovery rates of 91.5–102.6%. In contrast, the µPAD offers portability and rapid analysis (LOD: 10.119 µg/mL, linear range: 100–1000 µg/mL), achieving comparable accuracy (recovery: 90.6–96.1%) with minimal reagent consumption. Both techniques were validated according to the International Council for Harmonization guidelines, exhibiting negligible matrix interference in commercial formulations (Levolen, Levobact, Levofloxacin Vitapure). The spectrophotometric method excels in laboratory settings for precision, while the µPAD enables on-site testing, aligning with green chemistry principles. This dual approach bridges technological gaps, providing versatile tools to ensure accurate dosing, support antimicrobial stewardship, and enhance global pharmaceutical quality control.","PeriodicalId":606,"journal":{"name":"Journal of Analytical Chemistry","volume":"80 :","pages":"1628 - 1638"},"PeriodicalIF":1.1,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145122331","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

Evaluation of a Smartphone-Based Protein-to-Creatinine Ratio Assay for Detecting Kidney Disease Progression 基于智能手机的蛋白质与肌酐比值检测肾脏疾病进展的评估

IF 1.1 4区化学

Journal of Analytical Chemistry Pub Date : 2025-09-23 DOI: 10.1134/S1061934825700832

Xiaoxin Wang, Jing He, Yonghua Zhao, Dandan Liang, Zehua Yang

{"title":"Evaluation of a Smartphone-Based Protein-to-Creatinine Ratio Assay for Detecting Kidney Disease Progression","authors":"Xiaoxin Wang, Jing He, Yonghua Zhao, Dandan Liang, Zehua Yang","doi":"10.1134/S1061934825700832","DOIUrl":"10.1134/S1061934825700832","url":null,"abstract":"The urine protein-to-creatinine (P/C) ratio is a rapid and accurate method for measuring proteinuria in the diagnosis of kidney diseases. A smartphone device enables rapid determination of creatinine and proteins in urine. A smartphone-based method was developed and validated for the detection of the P/C ratio in this study. Clinical urine samples were also analyzed and compared to the Beckman Coulter AU5800 results for correlation assessment. For proteinuria, the limit of blank (LOB) and limit of detection (LOD) were 4.23 and 8.8 mg/dL, respectively, with a lower limit of quantification (LOQ) of 9.2 mg/dL and a linear range from 9.2 to 122 mg/dL. The intra-batch precision coefficient of variation (CV) was 2.5%, and the inter-batch precision CV ranged from 3.0 to 3.3%. For creatinine, the LOB and LOD were 13.2 and 17.9 μmol/L, respectively, with a LOQ of 28 μmol/L and a linear range from 28 to 209.12 μmol/L. The intra-batch precision CV was between 2.7 and 2.8%, and the inter-batch precision CV was between 2.9 and 3.8%. The smartphone-based method for P/C detection is a reliable, cost-effective, and portable option for accurately measuring urinary protein and creatinine, suitable for remote diagnostics and home health checks.","PeriodicalId":606,"journal":{"name":"Journal of Analytical Chemistry","volume":"80 :","pages":"1639 - 1646"},"PeriodicalIF":1.1,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145122372","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

Methods of the Investigation and Chemical Analysis of Microplastics and the Determination of Associated Compounds 微塑料的调查、化学分析方法及伴生化合物的测定

IF 1.1 4区化学

Journal of Analytical Chemistry Pub Date : 2025-09-23 DOI: 10.1134/S106193482570073X

M. S. Ermolin, O. N. Katasonova, Yu. N. Romanova, R. Kh. Dzhenloda

引用次数: 0

Effect of Concentration of Chemically Attached Mercaptopropyl Groups on the Silica Surface on the Sorption–Photometric Determination of Palladium(II) and Silver(I) as Their Complexes with Attached Groups and Dithizone 二氧化硅表面巯基的浓度对吸附光度法测定钯（II）和银(I)的影响

IF 1.1 4区化学

Journal of Analytical Chemistry Pub Date : 2025-09-23 DOI: 10.1134/S1061934825700765

V. N. Losev, A. I. Zykova

{"title":"Effect of Concentration of Chemically Attached Mercaptopropyl Groups on the Silica Surface on the Sorption–Photometric Determination of Palladium(II) and Silver(I) as Their Complexes with Attached Groups and Dithizone","authors":"V. N. Losev, A. I. Zykova","doi":"10.1134/S1061934825700765","DOIUrl":"10.1134/S1061934825700765","url":null,"abstract":"The effect of the concentration of mercaptopropyl groups chemically attached to a silica surface in the range from 0.18 to 0.76 mmol/g on the formation and color intensity of Pd(II) complexes with the attached groups, as well as mixed-ligand complexes of palladium(II) and silver(I) with attached mercaptopropyl groups and dithizone is studied. It is shown that, with an increase in the concentration of the attached mercaptopropyl groups, the color intensity of sorbents containing an equal amount of the adsorbed palladium(II) increases. In the case of the formation of mixed-ligand complexes of palladium(II) and silver(I) with the attached groups and dithizone, with an increase in the surface concentration of the attached groups, the intensity of the sorbent color decreases. Procedures for the sorption–photometric determination of palladium(II) as complexes with the attached groups and palladium(II) and silver(I) as surface mixed-ligand complexes are developed. It is concluded that, to achieve low limits of detection of elements as their complexes with the attached groups by the sorption–photometric method, the concentration of the attached groups should be maximum, and to achieve low limits of detection of elements as their mixed-ligand complexes with the attached groups and dithizone, the concentration of the attached groups should be minimum.","PeriodicalId":606,"journal":{"name":"Journal of Analytical Chemistry","volume":"80 :","pages":"1552 - 1560"},"PeriodicalIF":1.1,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145122411","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

Optimization of Sample Preparation Methods to Improve the Efficiency of Nanoparticle Extraction from Environmental Samples 优化样品制备方法，提高环境样品中纳米颗粒的提取效率

IF 1.1 4区化学

Journal of Analytical Chemistry Pub Date : 2025-09-23 DOI: 10.1134/S1061934825700741

A. S. Brzhezinskii, M. S. Ermolin, V. K. Karandashev, P. S. Fedotov

{"title":"Optimization of Sample Preparation Methods to Improve the Efficiency of Nanoparticle Extraction from Environmental Samples","authors":"A. S. Brzhezinskii, M. S. Ermolin, V. K. Karandashev, P. S. Fedotov","doi":"10.1134/S1061934825700741","DOIUrl":"10.1134/S1061934825700741","url":null,"abstract":"A methodological gap in the study of environmental nanoparticles is largely due to their extremely low concentrations—typically around 0.01–0.1%—in ash, dust, or soil, which significantly complicates their extraction and quantification. This study demonstrates the efficiency of a novel sample preparation protocol for volcanic ash samples, involving sequential dispersion in 0.1 M NaCl and 2 mM Na4P2O7, followed by nanoparticle extraction by flow field-flow fractionation in a rotating coiled column, using a 2 mM Na4P2O7 solution as an eluent. Thise method ensures an increase in the mass of the extracted nanoparticles by one order of magnitude and enables the detection of elements such as Be, Cr, Co, Zn, Ag, Sb, Te, Ta, W, Tl, and Bi in ash-derived nanoparticles from various volcanoes in concentrations below the limits of detection by ICP–MS using deionized water as an eluent. In addition, the results of the procedure are not distorted by analytical artifacts, such as the formation of poorly soluble calcium phosphates during sample preparation. This approach provides a foundation for the systematic studies of ash-derived nanoparticles from a wide range of volcanic types, as well as of urban dust.","PeriodicalId":606,"journal":{"name":"Journal of Analytical Chemistry","volume":"80 :","pages":"1532 - 1542"},"PeriodicalIF":1.1,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145122312","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

Sorbent Materials for the Preconcentration of Platinum-Group Metals 铂族金属预富集用吸附材料

IF 1.1 4区化学

Journal of Analytical Chemistry Pub Date : 2025-09-23 DOI: 10.1134/S1061934825700728

V. V. Maksimova, T. A. Maryutina, O. B. Mokhodoeva

引用次数: 0

Determination of Papaverine as Ion Pairs with Anionic Azo Dyes through Solid-Phase Extraction Using Polyurethane Foam 阴离子偶氮染料固相萃取法测定罂粟碱离子对

IF 1.1 4区化学

Journal of Analytical Chemistry Pub Date : 2025-09-23 DOI: 10.1134/S1061934825700753

M. M. Osmanova, T. I. Tikhomirova, Kh. A. Mirzaeva

引用次数: 0