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Development and Application of a Hemicyanine Dye-Based Probe for Real-Time Detection of Aminopeptidase N Activity in Foam Cells and Serum 实时检测泡沫细胞和血清中氨基肽酶N活性的半花青碱染料探针的研制与应用
4区 化学
Analytical Letters Pub Date : 2025-08-17 DOI: 10.1080/00032719.2025.2546461
Yang Xu, Kai Wang, Jian Zhang
{"title":"Development and Application of a Hemicyanine Dye-Based Probe for Real-Time Detection of Aminopeptidase N Activity in Foam Cells and Serum","authors":"Yang Xu, Kai Wang, Jian Zhang","doi":"10.1080/00032719.2025.2546461","DOIUrl":"https://doi.org/10.1080/00032719.2025.2546461","url":null,"abstract":"","PeriodicalId":7788,"journal":{"name":"Analytical Letters","volume":"59 8","pages":"1354-1369"},"PeriodicalIF":0.0,"publicationDate":"2025-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147895671","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
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
{"title":"Biomass-Derived Fluorescent Probe from Silk Tree Flowers for the Selective and Sensitive Determination of Iron (III) in Water and Food","authors":"Yehan Yan, Huihui Li, Huaidong He, Lijuan Chen, Nai‐Fu Chen, Weiyun Wang, Renyong Liu","doi":"10.1080/00032719.2025.2531447","DOIUrl":"https://doi.org/10.1080/00032719.2025.2531447","url":null,"abstract":"","PeriodicalId":7788,"journal":{"name":"Analytical Letters","volume":"1 1","pages":"1-18"},"PeriodicalIF":0.0,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147333198","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
Fluorescent Determination of Flumequine Using a Novel Tryptophan (Trp)—Zeolitic Imidazolate Framework-8 (ZIF-8)—Terbium (III) Visual Probe 新型色氨酸-沸石咪唑酸框架-8 (ZIF-8) -铽（III）视觉探针荧光测定氟甲喹
4区 化学
Analytical Letters Pub Date : 2025-07-16 DOI: 10.1080/00032719.2025.2530052
Jintao Yi, Nihong Fu, Anqi Li, Ping Yan, Hui Pan, Xiulong Deng, Jun Xue, Xun Li
{"title":"Fluorescent Determination of Flumequine Using a Novel Tryptophan (Trp)—Zeolitic Imidazolate Framework-8 (ZIF-8)—Terbium (III) Visual Probe","authors":"Jintao Yi, Nihong Fu, Anqi Li, Ping Yan, Hui Pan, Xiulong Deng, Jun Xue, Xun Li","doi":"10.1080/00032719.2025.2530052","DOIUrl":"https://doi.org/10.1080/00032719.2025.2530052","url":null,"abstract":"","PeriodicalId":7788,"journal":{"name":"Analytical Letters","volume":"59 6","pages":"1124-1137"},"PeriodicalIF":0.0,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147882511","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
Improved Detection Limits for Polycyclic Aromatic Hydrocarbons (PAHs) in Soil and Sediments by Gas Chromatography-Mass Spectrometry (GC-MS) and Pseudo-Multiple Reaction Monitoring (PMRM) 气相色谱-质谱联用和伪多重反应监测技术提高土壤和沉积物中多环芳烃（PAHs）的检出限
4区 化学
Analytical Letters Pub Date : 2025-07-13 DOI: 10.1080/00032719.2025.2532162
Lin Yang, Guoqing Zou, Fengfeng Xiu, Dandan Zhao, Jianliang Fei, Jun Xie
{"title":"Improved Detection Limits for Polycyclic Aromatic Hydrocarbons (PAHs) in Soil and Sediments by Gas Chromatography-Mass Spectrometry (GC-MS) and Pseudo-Multiple Reaction Monitoring (PMRM)","authors":"Lin Yang, Guoqing Zou, Fengfeng Xiu, Dandan Zhao, Jianliang Fei, Jun Xie","doi":"10.1080/00032719.2025.2532162","DOIUrl":"https://doi.org/10.1080/00032719.2025.2532162","url":null,"abstract":"Polycyclic aromatic hydrocarbons (PAHs) in soil pose significant analytical challenges due to matrix complexity, low concentrations, and co-extracted interferents. Conventional gas chromatography-mass spectrometry (GC-MS) methods suffer from limited sensitivity and selectivity, particularly for high-molecular-weight PAHs with stable molecular ions that resist fragmentation. Here, we present a novel gas chromatography-tandem mass spectrometry (GC-MS/MS) method using pseudo-multiple reaction monitoring (PMRM) coupled with an optimized extraction protocol for precise quantification of 16 USEPA priority PAHs in soil. By exploiting the inherent stability of PAH molecular ions ([M]<sup>+</sup>), PMRM achieved 3.1–4.8 times lower detection limits than traditional selected ion monitoring (SIM) while resolving critical isomer pairs (e.g., phenanthrene/anthracene, <i>R</i> &gt; 1.5) through time-segmented collision energy (CE) optimization (5–25 eV). A streamlined extraction using acetonitrile modified with anhydrous Na<sub>2</sub>SO<sub>4</sub> eliminated labor-intensive cleanup, achieving &gt;85% recovery across a wide log<i>K<sub>ow</sub></i> range (3.37–6.50). The PMRM strategy enhanced signal-to-noise ratios by collisional focusing and differential interference fragmentation, enabling direct injection of crude extracts without compromising sensitivity. This approach addresses long-standing limitations in PAH analysis, offering a robust, high-throughput solution for environmental monitoring and regulatory compliance, with potential applications to other structurally stable pollutants.","PeriodicalId":7788,"journal":{"name":"Analytical Letters","volume":"59 7","pages":"1203-1220"},"PeriodicalIF":0.0,"publicationDate":"2025-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147892370","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: 2
Self-Powered Photoelectrochemical Determination of Norfloxacin Using a Molybdenum (IV) Sulfide/Bismuth Vanadate Heterojunction 硫化钼/钒酸铋异质结自供电电化学测定诺氟沙星
4区 化学
Analytical Letters Pub Date : 2025-07-12 DOI: 10.1080/00032719.2025.2528865
Dan Wang, Wei Hua, Xiangzhi Gan
{"title":"Self-Powered Photoelectrochemical Determination of Norfloxacin Using a Molybdenum (IV) Sulfide/Bismuth Vanadate Heterojunction","authors":"Dan Wang, Wei Hua, Xiangzhi Gan","doi":"10.1080/00032719.2025.2528865","DOIUrl":"https://doi.org/10.1080/00032719.2025.2528865","url":null,"abstract":"Norfloxacin (NFX), an antimicrobial agent effective against a variety of infections including those of the gastrointestinal and urinary tracts, respiratory system, eyes, and skin, was quantified using a photoelectrochemical (PEC) sensor based on a molybdenum disulfide/bismuth vanadate (MoS<sub>2</sub>/BiVO<sub>4</sub>) heterojunction, which was synthesized through a straightforward two-step hydrothermal method. The resulting PEC sensor demonstrated linear response ranges of 0.01–1 and 1–40 µM, with a remarkably low detection limit of 0.0019 µM Signal-to-Noise ratio = 3 (S/<i>N</i> = 3), and showed excellent stability for NFX detection. The MoS<sub>2</sub>/BiVO<sub>4</sub> photoelectrode is thus highlighted as a highly promising tool for PEC analysis.","PeriodicalId":7788,"journal":{"name":"Analytical Letters","volume":"59 6","pages":"1109-1123"},"PeriodicalIF":0.0,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147892967","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
Enhanced Specificity in Dual-Recognition Colorimetric Determination of Staphylococcus aureus by Incorporating Canine Immunoglobulin G into Vancomycin Functionalized Magnetic Beads 犬免疫球蛋白G与万古霉素磁珠双识别比色法测定金黄色葡萄球菌的特异性增强
4区 化学
Analytical Letters Pub Date : 2025-07-06 DOI: 10.1080/00032719.2025.2525977
Fan Xiu, Xiaoyan Li, Yihua Wang, Dawei Xu, Liping Zhao, Ruilan Yuan, Chonghua Hao, Chunyu Wang
{"title":"Enhanced Specificity in Dual-Recognition Colorimetric Determination of <i>Staphylococcus aureus</i> by Incorporating Canine Immunoglobulin G into Vancomycin Functionalized Magnetic Beads","authors":"Fan Xiu, Xiaoyan Li, Yihua Wang, Dawei Xu, Liping Zhao, Ruilan Yuan, Chonghua Hao, Chunyu Wang","doi":"10.1080/00032719.2025.2525977","DOIUrl":"https://doi.org/10.1080/00032719.2025.2525977","url":null,"abstract":"<i>Staphylococcus aureus</i> (<i>S. aureus</i>) is globally recognized as a foodborne pathogen that causes food poisoning by secreting enterotoxins. In this study, a novel dual-recognition strategy for detecting <i>S. aureus</i> was developed, employing vancomycin-functionalized magnetic beads (Van-MBs) for target capture and canine immunoglobulin G (IgG) to selectively and sensitively bind to staphylococcal protein A (SPA) on the bacterial surface. Dual-recognition strategies based on vancomycin and porcine IgG have previously been developed for the detection of <i>S. aureus</i>. However, porcine IgG can also bind to protein G, which poses the risk of generating false-positive signals from protein G-producing <i>Streptococci</i>. In contrast, canine IgG demonstrates a higher affinity for protein A than for protein G. When <i>S. aureus</i> is present in the sample matrix, the Van-MBs and biotin-labeled canine IgG successfully form a sandwich complex. Then, streptavidin-conjugated horseradish peroxidase (HRP) is added, which binds to the sandwich structure. HRP then catalyzes the oxidation of 3,3’,5,5’-tetramethylbenzidine (TMB), resulting in the formation of a colorimetric signal that was proportional to the concentration of <i>S. aureus</i> within the concentration range of 6.3 × 10<sup>3</sup>–4.0 × 10<sup>5</sup> CFU/mL with a detection limit of 1.9 × 10<sup>3</sup> CFU/mL. By substituting porcine IgG with canine IgG, this method eliminates cross-reactivity with protein G-expressing <i>Streptococci</i>, achieving specificity over non-target species. This approach highlights its potential for application in diverse sample matrices, including clinical and biological specimens.","PeriodicalId":7788,"journal":{"name":"Analytical Letters","volume":"59 6","pages":"1041-1053"},"PeriodicalIF":0.0,"publicationDate":"2025-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147904776","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
Novel Electrochemical Determination of Glucose Using a Carbon Quantum Dots (CQDs)/Co 2 (OH) 3 Cl/NiCl(OH) Nanocomposite 碳量子点/Co 2 (OH) 3cl /NiCl（OH）纳米复合材料电化学测定葡萄糖
4区 化学
Analytical Letters Pub Date : 2025-06-26 DOI: 10.1080/00032719.2025.2522990
Hongdan Wang, Xixi Song, Qianqian Wu, Tingting Yu, Tingting Lin, Yiran Yu, Zhenxiao Dai, Hongyan Bai
{"title":"Novel Electrochemical Determination of Glucose Using a Carbon Quantum Dots (CQDs)/Co <sub>2</sub> (OH) <sub>3</sub> Cl/NiCl(OH) Nanocomposite","authors":"Hongdan Wang, Xixi Song, Qianqian Wu, Tingting Yu, Tingting Lin, Yiran Yu, Zhenxiao Dai, Hongyan Bai","doi":"10.1080/00032719.2025.2522990","DOIUrl":"https://doi.org/10.1080/00032719.2025.2522990","url":null,"abstract":"","PeriodicalId":7788,"journal":{"name":"Analytical Letters","volume":"59 6","pages":"1012-1027"},"PeriodicalIF":0.0,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147912580","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
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
{"title":"A Smartphone-Based Portable Electrochemical Assay for Organophosphorus Pesticide Detection Based on the Electron Transfer-Promoting Effect of Thiocholine","authors":"Shunbi Xie, Shuting Liang, Jing Chen, Yue Sun, Heshan Yang","doi":"10.1080/00032719.2025.2524474","DOIUrl":"https://doi.org/10.1080/00032719.2025.2524474","url":null,"abstract":"","PeriodicalId":7788,"journal":{"name":"Analytical Letters","volume":"59 6","pages":"1028-1040"},"PeriodicalIF":0.0,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147330482","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
Colorimetric Smartphone-Based Dry Assay for the Determination of Hemoglobin 基于智能手机的比色干法测定血红蛋白
4区 化学
Analytical Letters Pub Date : 2025-06-09 DOI: 10.1080/00032719.2025.2511884
Ping Li, Lv Yuan, Sainan Yang, Keqian Xu, Haiyong Luo, Qian Liu, Bin Dai
{"title":"Colorimetric Smartphone-Based Dry Assay for the Determination of Hemoglobin","authors":"Ping Li, Lv Yuan, Sainan Yang, Keqian Xu, Haiyong Luo, Qian Liu, Bin Dai","doi":"10.1080/00032719.2025.2511884","DOIUrl":"https://doi.org/10.1080/00032719.2025.2511884","url":null,"abstract":"","PeriodicalId":7788,"journal":{"name":"Analytical Letters","volume":"59 5","pages":"852-864"},"PeriodicalIF":0.0,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147898847","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
Polyvinyl Alcohol (PVA)/Nb 2 C/Ag Flexible Surface Enhanced Raman Spectroscopy (SERS) Substrate for Sensitive Determination of Phosmet Residues on Apple Surfaces 聚乙烯醇(PVA)/Nb 2 C/Ag柔性表面增强拉曼光谱（SERS）底物灵敏测定苹果表面光能残留
4区 化学
Analytical Letters Pub Date : 2025-06-02 DOI: 10.1080/00032719.2025.2511885
Denghao Li, Changqing Huang, Bo Yu, Di Cui, Jiali Liu, Li Jiang
{"title":"Polyvinyl Alcohol (PVA)/Nb <sub>2</sub> C/Ag Flexible Surface Enhanced Raman Spectroscopy (SERS) Substrate for Sensitive Determination of Phosmet Residues on Apple Surfaces","authors":"Denghao Li, Changqing Huang, Bo Yu, Di Cui, Jiali Liu, Li Jiang","doi":"10.1080/00032719.2025.2511885","DOIUrl":"https://doi.org/10.1080/00032719.2025.2511885","url":null,"abstract":"","PeriodicalId":7788,"journal":{"name":"Analytical Letters","volume":"59 5","pages":"865-876"},"PeriodicalIF":0.0,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147918838","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
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