Chinese Journal of Analytical Chemistry最新文献

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Rapid evaluation method for oil-gas separation membrane utilizing mass spectrometry 油气分离膜质谱快速评价方法
IF 1.2 4区 化学
Chinese Journal of Analytical Chemistry Pub Date : 2025-02-21 DOI: 10.1016/j.cjac.2025.100515
Haiyun SONG , Han WANG , Haobin WANG , Youjiang LIU , Shaomin LIU , Chilai CHEN
{"title":"Rapid evaluation method for oil-gas separation membrane utilizing mass spectrometry","authors":"Haiyun SONG ,&nbsp;Han WANG ,&nbsp;Haobin WANG ,&nbsp;Youjiang LIU ,&nbsp;Shaomin LIU ,&nbsp;Chilai CHEN","doi":"10.1016/j.cjac.2025.100515","DOIUrl":"10.1016/j.cjac.2025.100515","url":null,"abstract":"<div><div>A rapid evaluation method for the permeation performance of oil-gas separation membrane was proposed, utilizing membrane inlet mass spectrometry technology to simultaneously measure the permeation flux of various dissolved gases. This method enables the rapid measurement of membrane permeability coefficient, selectivity and particularly, membrane response time. Permeation performance comparisons were conducted for perfluoro-2,2-dimethyl-1,3-dioxolane-tetrafluoroethylene copolymer (AF2400), fluorinated ethylene propylene (FEP), polydimethylsiloxane (PDMS) and perfluoro-2-dimethyl-5,5-dimethyl-1,3-dioxolane-tetrafluoroethylene copolymer (PT610) membranes, and the effects of oil feeding rate and concentration on PT610 membrane permeation flux were investigated. The results indicated that the selectivity and permeability of different membranes varied. PT610 and AF2400 membrane exhibited high permeability to the main air components, including CH<sub>4</sub>, H<sub>2</sub>O, N<sub>2</sub>, O<sub>2</sub>, Ar and CO<sub>2</sub>. PDMS membrane showed high permeability only to CH<sub>4</sub> and H<sub>2</sub>O, while FEP membrane demonstrated relatively low permeability across all gases. Additionally, different membranes displayed varying response time to the same substance, and the response time for the same membrane varied slightly for different substances. Specifically, PDMS and AF2400 membrane response time of approximately 2 and 3 min, respectively, while PT610 membrane response time was around 1 min, and FEP membrane showed no response. Compared to traditional method based on osmotic equilibrium time, the proposed method reduces the measurement time significantly.</div></div>","PeriodicalId":277,"journal":{"name":"Chinese Journal of Analytical Chemistry","volume":"53 5","pages":"Article 100515"},"PeriodicalIF":1.2,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143738771","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
Detection of Alzheimer's disease based on microfluidic technology: Technical principles, tubular structures and testing samples 基于微流控技术的阿尔茨海默病检测:技术原理、管状结构和测试样品
IF 1.2 4区 化学
Chinese Journal of Analytical Chemistry Pub Date : 2025-02-13 DOI: 10.1016/j.cjac.2025.100509
Xinxiang SU , Junjun PU , Jinxia LIAO , Zhen WU
{"title":"Detection of Alzheimer's disease based on microfluidic technology: Technical principles, tubular structures and testing samples","authors":"Xinxiang SU ,&nbsp;Junjun PU ,&nbsp;Jinxia LIAO ,&nbsp;Zhen WU","doi":"10.1016/j.cjac.2025.100509","DOIUrl":"10.1016/j.cjac.2025.100509","url":null,"abstract":"<div><div>Alzheimer's disease (AD), a neurodegenerative ailment severely threatening human health, has numerous patients globally. The patient count rises with the aging population, burdening families and society. Lacking effective treatments currently, early screening and diagnosis of AD are of utmost importance. Microfluidic technology (MFC) offers new prospects for AD detection, featuring miniaturization and high detecting flux. This review focuses on AD detection methods based on MFC. Categorized by technical principles, they include electrochemical, optical, bioaffinity chromatography, and integrations with other techniques, each with pros and cons. In terms of tubular structures, there are single-channel, multi-channel array, microchannel-reaction chamber combinations, and others, fulfilling different detection needs. Regarding testing samples, they span protein, gene, cell, blood, and tissue samples. Despite challenges in each sample's detection, all hold potential. The MFC develops rapidly with great potential in AD screening and diagnosis. However, issues like accuracy, cost, and operational complexity remain. Future efforts should focus on optimizing technologies and methods, exploring multidisciplinary integrations, combinations, and personalized detection schemes to achieve precise and efficient early screening and diagnosis, thus aiding AD treatment and prevention.</div></div>","PeriodicalId":277,"journal":{"name":"Chinese Journal of Analytical Chemistry","volume":"53 6","pages":"Article 100509"},"PeriodicalIF":1.2,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143898803","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
Extraction, structural characterization and biological activities of exopolysaccharides from Ruditapes philippinarum 菲律宾竹外多糖的提取、结构表征及生物活性研究
IF 1.2 4区 化学
Chinese Journal of Analytical Chemistry Pub Date : 2025-02-11 DOI: 10.1016/j.cjac.2025.100508
Hongjie SHAN , Guoqiang CHEN , Wenxue DAI , Xuedong CHEN , Sheng DONG , Yuxi WEI , Haibo ZHANG
{"title":"Extraction, structural characterization and biological activities of exopolysaccharides from Ruditapes philippinarum","authors":"Hongjie SHAN ,&nbsp;Guoqiang CHEN ,&nbsp;Wenxue DAI ,&nbsp;Xuedong CHEN ,&nbsp;Sheng DONG ,&nbsp;Yuxi WEI ,&nbsp;Haibo ZHANG","doi":"10.1016/j.cjac.2025.100508","DOIUrl":"10.1016/j.cjac.2025.100508","url":null,"abstract":"<div><div>This study investigated the extraction, structural characterization and biological activities of exopolysaccharides from clam meat. The aim of this is to develop low-cost and novel animal polysaccharides with potential medicinal or health benefits. A crude polysaccharide yield of 10 g/100 g was extracted by the ultrasonic-assisted method. Two fraction exopolysaccharides (RPP-1A and RPP-2A) were obtained through DEAE-52 column chromatography and HW-65F column. Glc, GalA, GlcA, Rha and Rib were the main monosaccharides components of RPP-1A, whereas RPP-2A was primarily composed of GlcA, Rha and Rib. RPP-1A and RPP-2A were further investigated using Fourier transformed infrared (FT-IR) and nuclear magnetic resonance (NMR) that the results showed that RPP-1A comprised a main chain of residues represented as: [→6-<em>α</em>-Glc-(1 → 4)-<em>β</em>-GalA-(1 → 6)-<em>α</em>-Glc-(1 → 4)-<em>β</em>-GalA-(1→]. The side chain repeating unit structure is [<em>β</em>-GlcA-(1 → 4)-<em>α</em>-Glc-(1 → 3)-<em>α</em>-Rib-(1 → 4)-<em>α</em>-Rha-(1→], attached to the main chain at the C-2 position of Glc. RPP-2A represents the side chain portion of RPP-1A [<em>β</em>-GlcA-(1 → 4)-<em>α</em>-Glc-(1 → 3)-<em>α</em>-Rib-(1 → 4)-<em>α</em>-Rha-(1→]. Scanning electron microscopy (SEM) analysis revealed that the characteristic morphology of different fractions. X-ray diffraction showed that the polysaccharides consisted of crystalline and amorphous regions. Furthermore, assays of antioxidant activity showed that any one of RPP-1A and RPP-2A had antioxidant effects against DPPH radical, ABTS radical cation, hydroxyl radical, among which RPP-2 was stronger. In addition, they significantly inhibited the proliferation of Hela, and HepG2 cancer cells, and HepG2 was more sensitive to RPP-2A. In general, the results demonstrated that RPPs had great potential as a natural antioxidant in the functional food, and they are promising candidates for cancer treatment.</div></div>","PeriodicalId":277,"journal":{"name":"Chinese Journal of Analytical Chemistry","volume":"53 6","pages":"Article 100508"},"PeriodicalIF":1.2,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143864864","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
Simultaneous qualitative and quantitative analysis to explore the material basis for different formulations of Dachengqi decoction to produce different efficacy by UPLC-QTOF-MS and UFLC-QQQ-MS 采用UPLC-QTOF-MS和UFLC-QQQ-MS同时进行定性和定量分析,探讨大承气汤不同配方产生不同疗效的物质基础
IF 1.2 4区 化学
Chinese Journal of Analytical Chemistry Pub Date : 2025-02-01 DOI: 10.1016/j.cjac.2024.100488
Hai-Zhen LI , Yan LOU , Ying-Ying SHU , Wan-Ting JIN , Xiao-Xuan YAO , Jie SONG , Yin-Fang CHEN , Bin NIE
{"title":"Simultaneous qualitative and quantitative analysis to explore the material basis for different formulations of Dachengqi decoction to produce different efficacy by UPLC-QTOF-MS and UFLC-QQQ-MS","authors":"Hai-Zhen LI ,&nbsp;Yan LOU ,&nbsp;Ying-Ying SHU ,&nbsp;Wan-Ting JIN ,&nbsp;Xiao-Xuan YAO ,&nbsp;Jie SONG ,&nbsp;Yin-Fang CHEN ,&nbsp;Bin NIE","doi":"10.1016/j.cjac.2024.100488","DOIUrl":"10.1016/j.cjac.2024.100488","url":null,"abstract":"<div><div>Dachengqi Decoction (DCQD) is a well-known prescription of catharsis in “Shang Han Lun”, composed of 4 traditional Chinese medical ingredients: Radix et Rhizoma Rhei (Dahuang), Cortex Magnoliae officinalis (Houpo), Fructus Aurantii Immaturus (Zhishi) and Natrii Sulfas (Mangxiao). Due to the complexity of its composition and inconsistencies in the traditional decocting process, maintaining the quality and exploring the material basis for efficacy of DCQD are challenging. In this study, we established an integrating ultra-high-performance liquid chromatography equipped with quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF-MS) and ultra-fast-performance liquid chromatography equipped with triple quadrupole mass spectrometry (UFLC-QQQ-MS) method to perform qualitative and quantitative analyses of different DCQD formulations. The methods of quality control and content detection of the main components of different formulations were improved by optimizing the parameters of mobile phase composition, gradient and velocity. By optimizing of the method, the separation ability of structurally similar substances such as aloe-emodin, emodin and Apigenin is greatly improved. As a result, in the qualitative analysis, 190 components were detected of which 27 compounds were unambiguously identified by comparison with reference compounds by chromatographic behavior and mass spectrum, and the remaining compounds were tentatively assigned by comparison with fragmentation pathways and characteristic fragment ions in published literature or known databases. In the quantitative analysis, the contents of 19 key ingredients across 10 formulations were determined. The results showed that some components were roughly distributed according to the proportion of Chinese herbs, such as rhein, gallic acid, physcion, hesperetin and limonin. However, the distribution of most components differed greatly from that of Chinese herbs, such as emodin, hesperidin, synephrine and honokiol, producing solubilization effect or inhibition of dissolution effect, which could explainned the varied effects of different formulations in treating conditions like intestinal obstruction and pancreatitis. This study provides a simple, fast and accurate method to identify and quantify the main components in DCQD, and makes preparations for exploring the mechanism of different formulations of DCQD to produce different efficacy in gastrointestinal disease.</div></div>","PeriodicalId":277,"journal":{"name":"Chinese Journal of Analytical Chemistry","volume":"53 2","pages":"Article 100488"},"PeriodicalIF":1.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143140432","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
Crossed-linked chitosan coated cuprous oxide microspheres for iodide adsorption via one-step in-situ generation 交联壳聚糖包覆氧化亚铜微球的一步法原位吸附碘化物
IF 1.2 4区 化学
Chinese Journal of Analytical Chemistry Pub Date : 2025-02-01 DOI: 10.1016/j.cjac.2024.100487
Min LI , Qing LI , Lijie LI , Zixuan XU , Jie AN , Gaohong HE , Zhifang WU , Sijin LI , Wenjun ZHANG
{"title":"Crossed-linked chitosan coated cuprous oxide microspheres for iodide adsorption via one-step in-situ generation","authors":"Min LI ,&nbsp;Qing LI ,&nbsp;Lijie LI ,&nbsp;Zixuan XU ,&nbsp;Jie AN ,&nbsp;Gaohong HE ,&nbsp;Zhifang WU ,&nbsp;Sijin LI ,&nbsp;Wenjun ZHANG","doi":"10.1016/j.cjac.2024.100487","DOIUrl":"10.1016/j.cjac.2024.100487","url":null,"abstract":"<div><div>Radioactive iodine waste generated from nuclear power and radioactive medical treatments has become a serious environmental issue, raising concerns about public health. Cross-linked chitosan adsorbed iodide anions through electrostatic attraction yet limit-efficiently. To achieve better adsorption performance, chitosan-coated cuprous oxide microspheres (Cu<sub>2</sub>O@CM) was proposed via one-step in-situ liquid-phase method. Both Cu<sub>2</sub>O@CM-e cross-linked with epichlorohydrin and Cu<sub>2</sub>O@CM-g cross-linked with glutaraldehyde, performing rough and spherical morphology, exhibited rapid iodine removal capacities of 0.1843 mmol/g for Cu<sub>2</sub>O@CM-e and 0.1819 mmol/g for Cu<sub>2</sub>O@CM-g within just 10 min. The adsorption process occurred through a combination of physical multilayer adsorption and chemical monolayer adsorption, driven spontaneously and endothermically. After four regeneration cycles, Cu<sub>2</sub>O@CM-e and Cu<sub>2</sub>O@CM-g maintained almost identical adsorption efficiencies, highlighting their reusability. Considering the interference of Cl<sup>–</sup> and CO<sub>3</sub><sup>2–</sup>, both adsorbents showed significant selectivity towards competing ions. Thus, both adsorbents showed promising potential for the removal of iodine waste</div></div>","PeriodicalId":277,"journal":{"name":"Chinese Journal of Analytical Chemistry","volume":"53 2","pages":"Article 100487"},"PeriodicalIF":1.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143140502","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
Qiyu Granules ameliorate insulin resistance via modulating PI3K/AKT/FoxO1 pathway and AMPK/PPARγ pathway in diabetic KKAy mice 芪郁颗粒通过调节糖尿病KKAy小鼠的PI3K/AKT/ fox01通路和AMPK/PPARγ通路改善胰岛素抵抗
IF 1.2 4区 化学
Chinese Journal of Analytical Chemistry Pub Date : 2025-02-01 DOI: 10.1016/j.cjac.2024.100489
Xiaoxu FAN , Jiaqi LIU , Jian HUA, Zhen WANG, Yiwei SHEN, Danyue SHAO, Zhenhui JIN, Jingxia WANG
{"title":"Qiyu Granules ameliorate insulin resistance via modulating PI3K/AKT/FoxO1 pathway and AMPK/PPARγ pathway in diabetic KKAy mice","authors":"Xiaoxu FAN ,&nbsp;Jiaqi LIU ,&nbsp;Jian HUA,&nbsp;Zhen WANG,&nbsp;Yiwei SHEN,&nbsp;Danyue SHAO,&nbsp;Zhenhui JIN,&nbsp;Jingxia WANG","doi":"10.1016/j.cjac.2024.100489","DOIUrl":"10.1016/j.cjac.2024.100489","url":null,"abstract":"<div><h3>Objective</h3><div>To investigate the protective effect and mechanism of Qiyu Granules in alleviating insulin resistance in KKAy mice.</div></div><div><h3>Methods</h3><div>The chemical ingredients of Qiyu Granules were analyzed using ultra performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF-MS). Network pharmacology and animal experiments were used to verify the pharmacological effects of Qiyu Granules in alleviating insulin resistance in diabetic KKAy mice and to explore its mechanism of action. High-sugar, high-fat chow was fed to KKAy mice for modeling. After 12 weeks, indicators of glucose metabolism (FBG, AUC), lipid metabolism (TC, TG, LDL, HDL, FFA), liver function (ALT, AST) and insulin resistance (FINS, HOMA-IR, HOMA-<em>β</em>, ISI) were detected. Pathological changes in pancreatic and liver tissues were observed by hematoxylin-eosin (H&amp;E) and Oil Red O staining. Hepatic glycogen levels were analyzed using enzyme-linked immunosorbent assay (ELISA) method and periodic acid-Schiff (PAS) staining. Western blot was used to detect the protein expression levels of InsR, p-PI3 K, p-AKT, FoxO1, PEPCK, G6pase, p-AMPK, p-GSK-3β, GLUT2, PPAR<em>γ</em> and PPAR<em>α</em>.</div></div><div><h3>Results</h3><div>FBG, AUC, HOMA-IR, TC, TG, LDL, FFA, ALT, AST and hepatic index were decreased in mice treated with Qiyu Granules; while FINS, HOMA-<em>β</em>, ISI, HDL and hepatic glycogen content were increased. Qiyu Granules also improved histopathological changes in the pancreas and liver of KKAy mice. Besides, Qiyu Granules up-regulated the expression levels of InsR, p-PI3 K, p-AKT, p-AMPK, GLUT2 and PPAR<em>α</em> proteins in the livers of mice in the model group. However, Qiyu Granules down-regulated the expression levels of FoxO1, PEPCK, G6Pase, p-GSK-3<em>β</em> and PPAR<em>γ</em> proteins.</div></div><div><h3>Conclusion</h3><div>Qiyu Granules may regulate the InsR/PI3K/AKT/FoxO1 pathway, AMPK pathway, and PPAR<em>γ</em>/PPAR<em>α</em> pathway to ameliorate insulin resistance. Therefore, Qiyu Granules is a promising hypoglycaemic agent for the treatment of DM.</div></div>","PeriodicalId":277,"journal":{"name":"Chinese Journal of Analytical Chemistry","volume":"53 2","pages":"Article 100489"},"PeriodicalIF":1.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143140429","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
Efficacy and safety analysis of Kaiyu Jiangzhuo Tongzhi prescription for the treatment of pre-diabetic overweight/obese patients: A multicentre randomised controlled clinical study protocol and statistical analysis plan 开腹降浊通脂方治疗糖尿病前期超重/肥胖患者的疗效及安全性分析:多中心随机对照临床研究方案及统计分析方案
IF 1.2 4区 化学
Chinese Journal of Analytical Chemistry Pub Date : 2025-02-01 DOI: 10.1016/j.cjac.2024.100468
Xiaoxuan XU , Boxun ZHANG , Xue QU , Dongqi QU , Hang LIU , Wenlin ZHANG , Rui SUN , Linhua ZHAO , Jixiang REN , Ying ZHANG , Yangyang LIU
{"title":"Efficacy and safety analysis of Kaiyu Jiangzhuo Tongzhi prescription for the treatment of pre-diabetic overweight/obese patients: A multicentre randomised controlled clinical study protocol and statistical analysis plan","authors":"Xiaoxuan XU ,&nbsp;Boxun ZHANG ,&nbsp;Xue QU ,&nbsp;Dongqi QU ,&nbsp;Hang LIU ,&nbsp;Wenlin ZHANG ,&nbsp;Rui SUN ,&nbsp;Linhua ZHAO ,&nbsp;Jixiang REN ,&nbsp;Ying ZHANG ,&nbsp;Yangyang LIU","doi":"10.1016/j.cjac.2024.100468","DOIUrl":"10.1016/j.cjac.2024.100468","url":null,"abstract":"<div><div>The Chinese Academy of traditional Chinese medicine (TCM)’s academician Xiaolin Tong developed the Kaiyu Jiangzhuo Tongzhi prescription (KYJZ) in response to prediabetes'’s “yu” mechanism. This study plans to thoroughly evaluate the safety and effectiveness of KYJZ in treating prediabetes and preventing diabetes mellitus. This study is a multicenter, randomized, double-blind, placebo-controlled trial in which 598 patients with pre-diabetes were randomly assigned in a 1:1 ratio to either the KYJZ or the placebo group. The primary outcome was to assess the incidence of diabetes at the end of 48 weeks. Secondary outcomes included the rate of normal conversion to glucose tolerance at the end of 48 weeks, indicators of glucose-fat metabolism, body mass index (BMI), waist circumference (WC), and Diabetes Symptom Rating Scale (DSRS), as well as body composition analysis (BCA) and diabetes risk score (DRS). Record all adverse events that occur and analyze the data collected. The results of this study will provide strong evidence for the efficacy and safety of KYJZ in reducing the incidence of diabetes mellitus in overweight/obese patients with prediabetes.</div></div>","PeriodicalId":277,"journal":{"name":"Chinese Journal of Analytical Chemistry","volume":"53 2","pages":"Article 100468"},"PeriodicalIF":1.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143140433","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
Paper-based immunosensor for quantitative detection of African swine fever virus p54 protein 非洲猪瘟病毒p54蛋白定量检测的纸基免疫传感器
IF 1.2 4区 化学
Chinese Journal of Analytical Chemistry Pub Date : 2025-02-01 DOI: 10.1016/j.cjac.2024.100477
Ling-Ling GUO, Xin-Xin XU, Li-Qiang LIU, Hua KUANG, Chuan-Lai XU
{"title":"Paper-based immunosensor for quantitative detection of African swine fever virus p54 protein","authors":"Ling-Ling GUO,&nbsp;Xin-Xin XU,&nbsp;Li-Qiang LIU,&nbsp;Hua KUANG,&nbsp;Chuan-Lai XU","doi":"10.1016/j.cjac.2024.100477","DOIUrl":"10.1016/j.cjac.2024.100477","url":null,"abstract":"<div><div>African swine fever virus (ASFV) has resulted in significant economic detriment to the livestock industry in recent years. Highly sensitive and accurate detection methods are currently the most effective means for ASFV prevention and control. In this work, the ASFV p54 recombinant protein was successfully expressed by plasmid construction, prokaryotic expression and purification. Monoclonal antibodies (mAbs) were obtained using hybridoma cell technology. Through pair analysis, mAb-6E5 and mAb-4D7 were selected for p54 detection, both exhibiting high affinity and no cross-reactivity with other ASFV proteins. Based on the sandwich colloidal gold immunochromatographic assay principle, a p54 test strip was constructed using 6E5 as the capture antibody and 2D7 as the detection antibody, with a limit of detection of 1.51 ng/mL. The intra- and inter-assay recoveries ranged from 87.8% to 110.6%, with variable coefficient of less than 11.1%. Positive serum samples further confirmed the accuracy of the assay. This developed test strip has the potential to serve as an effective tool for ASFV detection and could play a crucial role in the prevention and management of African Swine Fever (ASF) outbreaks.</div></div>","PeriodicalId":277,"journal":{"name":"Chinese Journal of Analytical Chemistry","volume":"53 2","pages":"Article 100477"},"PeriodicalIF":1.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143140431","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
Development of LC/LCMS method for estimation of impurities in anti-HIV drug (Bictegravir) using Analytical Quality by Design (AQbD) approach 采用设计质量分析方法(AQbD)建立了LC/LCMS法测定抗hiv药物比替格拉韦中杂质含量的方法
IF 1.2 4区 化学
Chinese Journal of Analytical Chemistry Pub Date : 2025-02-01 DOI: 10.1016/j.cjac.2024.100469
Divya Kumar VEMURI , Rambabu GUNDLA , Jayaprakash Kanijam RAGHUPATHI , Nagalakshmi JEEDIMALLA , Gowri Sankararao BURLE , Naresh Kumar KATARI , Sreekantha Babu JONNALAGADDA
{"title":"Development of LC/LCMS method for estimation of impurities in anti-HIV drug (Bictegravir) using Analytical Quality by Design (AQbD) approach","authors":"Divya Kumar VEMURI ,&nbsp;Rambabu GUNDLA ,&nbsp;Jayaprakash Kanijam RAGHUPATHI ,&nbsp;Nagalakshmi JEEDIMALLA ,&nbsp;Gowri Sankararao BURLE ,&nbsp;Naresh Kumar KATARI ,&nbsp;Sreekantha Babu JONNALAGADDA","doi":"10.1016/j.cjac.2024.100469","DOIUrl":"10.1016/j.cjac.2024.100469","url":null,"abstract":"<div><div>Analytical Quality by Design (AQbD) was used to construct stability indicating linked compounds using the HPLC technique of an anti-human immunodeficiency virus (anti-HIV) medicine (Bictegravir). Process-related and degrading impurities were separated on a Zorbax SB-C8 (150×4.6) mm, 3.5 m column. The buffer pH of the mobile phase was kept at 2.5 by employing potassium dihydrogen phosphate 0.05 M Mobile phase A contains 5 % methanol and 95 % buffer, whereas mobile phase B contains 50 % acetonitrile, 10 % methanol, 25 % tetrahydrofuran, and 15 % water. The completed chromatographic settings were a flow rate of 1.2 mL/min, a detector wavelength of UV at 250 nm, and an injection volume of 20 µL. This approach has been verified in accordance with ICH recommendations. The approach was discovered to be particular, sensitive, linear, exact, and accurate. The limit of quantification for all contaminants was determined to be &lt; 0.05 %, the correlation coefficient for all impurities is between 0.9996 and 1.0000, and the percent recovery for all impurities is between 91 % and 108 % at the LOQ level and 97 % to 113 % at the specification level. Forced degradation experiments in chemical and physical stress tests were performed in accordance with regulatory criteria, and the molecule was discovered to be susceptible to acid and base hydrolysis. Imp-A was the most common degrading impurity in both acid and base hydrolysis.</div></div>","PeriodicalId":277,"journal":{"name":"Chinese Journal of Analytical Chemistry","volume":"53 2","pages":"Article 100469"},"PeriodicalIF":1.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143140430","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
From tradition to innovation: Systematic analysis of quality markers (Q-markers) in traditional Chinese medicine 从传统到创新:中药质量标记(q)的系统分析
IF 1.2 4区 化学
Chinese Journal of Analytical Chemistry Pub Date : 2025-01-27 DOI: 10.1016/j.cjac.2025.100502
Jingru Mu , Hongwei Li , Mengwei Xu , Tingting Luo , Zhixiu Luo , Ning Yang , Delin Xu
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