Analytical Letters最新文献

Nanoenzyme-Based Colorimetric Assay for Rapid Glutathione Determination Using Microwave-Synthesized Palladium Nanocrystals 微波合成钯纳米晶纳米酶比色法快速测定谷胱甘肽

4区化学

Analytical Letters Pub Date : 2026-02-05 DOI: 10.1080/00032719.2026.2624698

Quanxiu Wang, Zijin Chen, Jiaoyan Gao, Xingshuo Wang, Xinlei Huang, Yuting Shen, Hui Lu, Leilei Guo

引用次数: 0

Novel Colorimetric Immunosensor Based on Gold Nanoparticle@ Molybdenum Disulfide/MXene Nanozyme Labels for the Determination of Squamous Cell Carcinoma Antigen (SCCA) 基于金纳米粒子@二硫化钼/MXene纳米酶标记的新型比色免疫传感器检测鳞状细胞癌抗原（SCCA）

4区化学

Analytical Letters Pub Date : 2025-10-11 DOI: 10.1080/00032719.2025.2570529

Qian Lv, Donglin Cao, Wei Xiao, Lili Zou, Zheng Wang

引用次数: 0

Biomass-Derived Fluorescent Probe from Silk Tree Flowers for the Selective and Sensitive Determination of Iron (III) in Water and Food 蚕树花生物质衍生荧光探针对水和食物中铁（III）的选择性和敏感性测定

4区化学

Analytical Letters Pub Date : 2025-07-18 DOI: 10.1080/00032719.2025.2531447

Yehan Yan, Huihui Li, Huaidong He, Lijuan Chen, Nai‐Fu Chen, Weiyun Wang, Renyong Liu

引用次数: 0

A Smartphone-Based Portable Electrochemical Assay for Organophosphorus Pesticide Detection Based on the Electron Transfer-Promoting Effect of Thiocholine 基于硫胆碱电子转移促进作用的智能手机便携式有机磷农药电化学检测方法

4区化学

Analytical Letters Pub Date : 2025-06-25 DOI: 10.1080/00032719.2025.2524474

Shunbi Xie, Shuting Liang, Jing Chen, Yue Sun, Heshan Yang

引用次数: 0

Quantitation of Arsenic in biological matrices: Use of Sector Field Inductively Coupled Plasma-Mass Spectrometry for Improved Accuracy and Specificity. 生物基质中砷的定量：使用扇形场电感耦合等离子体质谱法提高准确性和特异性。

IF 1.8 4区化学

Analytical Letters Pub Date : 2025-04-29 DOI: 10.1080/00032719.2025.2496934

Chamindu Liyanapatirana, Frank X Weber, James M Harrington, Laura G Haines, Reshan A Fernando, Keith E Levine, Suramya Waidyanatha

{"title":"Quantitation of Arsenic in biological matrices: Use of Sector Field Inductively Coupled Plasma-Mass Spectrometry for Improved Accuracy and Specificity.","authors":"Chamindu Liyanapatirana, Frank X Weber, James M Harrington, Laura G Haines, Reshan A Fernando, Keith E Levine, Suramya Waidyanatha","doi":"10.1080/00032719.2025.2496934","DOIUrl":"10.1080/00032719.2025.2496934","url":null,"abstract":"Arsenic (As) and As-containing compounds have a wide array of applications in medicine, industry, and agriculture and has been associated with adverse health outcomes. In support of studies investigating the toxicity and toxicokinetic behavior of arsenic compounds, we developed and validated a high-resolution sector field inductively coupled plasma mass spectrometry (SF-ICP-MS) method to quantitate total arsenic in Sprague-Dawley (SD) rat plasma and heart. Primary matrix standard curves prepared in male SD rat plasma were linear (r ≥ 0.999) over the range of 5 to 1250 ng As/mL plasma with accuracy determined as relative error (RE) was ≤ ±20% at the lower limit of quantitation (LLOQ) of 5 ng/mL and ≤ ±15% for all other concentrations. The method limit of detection (LOD) was 0.728 ng/mL plasma. Mean extraction recovery was 96.7%, with a relative standard deviation (RSD) of 4.0%. The method demonstrated acceptable inter- (≤ ±7.3% RE and ≤ 8.0% RSD) and intra-day (≤ ±14.9% RE and ≤ 6.8% RSD) accuracy and precision. Method selectivity was ≤ 20% of the response for the LLOQ. Method performance was also evaluated in SD rat heart by preparing QC samples in heart homogenate and quantifying using plasma calibration curve. The mean RE value was -3.8% and the RSD value was 3.4% demonstrating that the method is suitable for quantitation of arsenic in rat heart.","PeriodicalId":7788,"journal":{"name":"Analytical Letters","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12383451/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144939304","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

L-Tryptophan/Levofloxacin-Based Ratiometric Fluorescence Biosensor for Escherichia coli by a Portable Device 基于l -色氨酸/左氧氟沙星的便携式大肠杆菌比例荧光生物传感器

4区化学

Analytical Letters Pub Date : 2025-03-30 DOI: 10.1080/00032719.2025.2483323

Tang Li, Ruobo Chen, Jun Liao, Yi Fan, Ruidong Meng, Fu Li, Jia Li

引用次数: 0

Development of a Rapid Fluorescence Probe for the Determination of Aqueous Hypochlorite. 快速荧光探针测定次氯酸盐的研究。

IF 1.8 4区化学

Analytical Letters Pub Date : 2025-01-01 Epub Date: 2024-09-17 DOI: 10.1080/00032719.2024.2403144

Sharmin Sultana, Megan B Guetzloff, Ramu Kakumanu, Trevor R Ostlund, Fathi T Halaweish, Brian A Logue

{"title":"Development of a Rapid Fluorescence Probe for the Determination of Aqueous Hypochlorite.","authors":"Sharmin Sultana, Megan B Guetzloff, Ramu Kakumanu, Trevor R Ostlund, Fathi T Halaweish, Brian A Logue","doi":"10.1080/00032719.2024.2403144","DOIUrl":"10.1080/00032719.2024.2403144","url":null,"abstract":"Chlorine interacts with the aqueous environment, including the mucosa and alveolar fluid in the lungs, causes the immediate transformation of chlorine to hypochlorous acid (HClO) and hydrochloric acid (HCl) which induces cellular damage and may produce systemic toxicity. There are multiple techniques to monitor hypochlorite (HClO/ClO-) from various matrices, however, they each have significant disadvantages, including limited sensitivity, complexity, and slow response. In this study, we developed a water-soluble fluorescein-based probe, called fluorescein thioacid (FSH), for the rapid and sensitive detection of HClO/ClO- in aqueous solutions via oxidation of FSH to produce fluorescein. FSH was synthesized via a simple, one-step procedure and exhibited excellent selectivity for ClO-, maintaining 82% signal stability for 24 h. FSH performed well over a wide pH range (4 to 10; optimum pH of 4), produced a linear range from 1 to 100 μM, and had a detection limit of 100 nM. The probe was able to accurately quantify HClO/ClO- concentrations in tap water (13.8 μM) and swimming pool water (56.9 μM) samples. Overall, FSH is simple to synthesize, highly selective, highly sensitive, has excellent water solubility, and produces a fast response for monitoring of aqueous ClO- levels.","PeriodicalId":7788,"journal":{"name":"Analytical Letters","volume":"58 13","pages":"2249-2263"},"PeriodicalIF":1.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12266673/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144658165","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

A Dual-Mode Optical Sensing Strategy for Rapid Detection of D-Penicillamine in Pharmaceutical Formulations 一种快速检测制剂中d -青霉胺的双模光学传感策略

4区化学

Analytical Letters Pub Date : 2024-10-26 DOI: 10.1080/00032719.2024.2419533

Jinwen Liu, Tingting Chen, M.‐S. CAI, Yingfeng Qin, Mei Li

引用次数: 1

Part-per-Billion (Ppb)-Level Acetylene Sensor Employing Optical Quartz Enhanced Photoacoustic Spectroscopy (QEPAS) with an Erbium-Doped Fiber Amplifier (EDFA) and a Fiber-Optic Fabry–Perot Interferometer 采用光学石英增强型光声光谱仪 (QEPAS)、掺铒光纤放大器 (EDFA) 和光纤法布里-珀罗干涉仪的十亿分之一 (Ppb) 级乙炔传感器

IF 2 4区化学

Analytical Letters Pub Date : 2024-09-14 DOI: 10.1080/00032719.2024.2403020

Cheng Lin, Xuelian Zhang, Xueyang Yan, Yan Cai, Wenjie Li

引用次数: 0

Development of Analytical Strategy for the Determination of Cadmium by Flame Atomic Absorption Spectrometry After Dithizone/Deep Eutectic Solvent Probe Based Liquid Phase Microextraction 开发基于液相微萃取的双硫酮/深共晶溶剂探针火焰原子吸收光谱法测定镉的分析策略