International Journal of Analytical Chemistry最新文献_第9页

Retracted: Broadband Design of Midinfrared Chiral Metamaterials Based on the Indium Tin Oxide Conical Helix. 收回：基于铟锡氧化物锥形螺旋的中稀疏手性超材料的宽带设计。

IF 1.8 4区化学

International Journal of Analytical Chemistry Pub Date : 2023-10-04 eCollection Date: 2023-01-01 DOI: 10.1155/2023/9856434

International Journal Of Analytical Chemistry

引用次数: 0

Retracted: Preparation and Synergistic Anti-Tumor Effect of Iridium Oxide Nanocomposites under Microscope. 撤回：氧化铱纳米复合材料的制备及其在显微镜下的协同抗肿瘤作用。

IF 1.8 4区化学

International Journal of Analytical Chemistry Pub Date : 2023-10-04 eCollection Date: 2023-01-01 DOI: 10.1155/2023/9763513

International Journal Of Analytical Chemistry

引用次数: 0

Retracted: Preparation and Optical Properties of Compound Nanopowder Art Ceramics. 收回：复合纳米粉体艺术陶瓷的制备和光学性能。

IF 1.8 4区化学

International Journal of Analytical Chemistry Pub Date : 2023-10-04 eCollection Date: 2023-01-01 DOI: 10.1155/2023/9854036

International Journal Of Analytical Chemistry

引用次数: 0

Retracted: Application of Carbon Nanofiber-Modified Concrete in Industrial Building Design. 收回：碳纳米纤维改性混凝土在工业建筑设计中的应用。

IF 1.8 4区化学

International Journal of Analytical Chemistry Pub Date : 2023-10-04 eCollection Date: 2023-01-01 DOI: 10.1155/2023/9862328

International Journal Of Analytical Chemistry

引用次数: 0

Retracted: Human Health Risk Prediction Method of Regional Atmospheric Environmental Pollution Sources Based on PMF and PCA Analysis under Artificial Intelligence Cloud Model. 收回：人工智能云模型下基于PMF和PCA分析的区域大气环境污染源人类健康风险预测方法。

IF 1.8 4区化学

International Journal of Analytical Chemistry Pub Date : 2023-10-04 eCollection Date: 2023-01-01 DOI: 10.1155/2023/9845298

International Journal Of Analytical Chemistry

引用次数: 0

QSPR Modeling of Fungicides Using Topological Descriptors. 使用拓扑描述符对杀菌剂的QSPR建模。

IF 1.8 4区化学

International Journal of Analytical Chemistry Pub Date : 2023-09-30 eCollection Date: 2023-01-01 DOI: 10.1155/2023/9625588

Saima Parveen, Fatima Saeed, Fozia Bashir Farooq, Nusrat Parveen, Nazeran Idrees, Sumiya Nasir, Rakotondrajao Fanja

{"title":"QSPR Modeling of Fungicides Using Topological Descriptors.","authors":"Saima Parveen, Fatima Saeed, Fozia Bashir Farooq, Nusrat Parveen, Nazeran Idrees, Sumiya Nasir, Rakotondrajao Fanja","doi":"10.1155/2023/9625588","DOIUrl":"10.1155/2023/9625588","url":null,"abstract":"A topological index is a real number that is obtained from a chemical graph's structure. Determining the physiochemical and biological characteristics of a variety of medications is useful since it more accurately represents the theoretical characteristics of organic molecules. This is accomplished using degree-based topological indices. The QSPR research has improved the structural understanding of the physiochemical properties of fungicides. Thirteen fungicides are examined for some of their physiochemical properties, and a QSPR model is built using nine of the drugs' topological indices. Here, we examine the degree to which the topological indices and physiochemical attributes are connected. To do this, we create networks connecting each of the topological indices to the properties of fungicides and computationally construct topological indices of the drugs mentioned above. According to this QSPR model, the melting point, boiling point, flash point, complexity, surface tension, etc. of fungicides are strongly connected. It was discovered that the topological indices (TIs) applied to the fungicides more accurately represent their theoretical features and show a strong correlation with their physical attributes.","PeriodicalId":13888,"journal":{"name":"International Journal of Analytical Chemistry","volume":"2023 ","pages":"9625588"},"PeriodicalIF":1.8,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10560116/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41100495","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

Wastewater Treatment Using Wood Ash and Cement as Chemical Coagulant. 木灰和水泥作为化学混凝剂处理废水。

IF 1.8 4区化学

International Journal of Analytical Chemistry Pub Date : 2023-09-30 eCollection Date: 2023-01-01 DOI: 10.1155/2023/8274687

Milkessa Ingida, Gurmesa Bedane, Firanbon Adugna, Degefa Nigusu, Mohammed Hussen, Chala Hailu Sime

{"title":"Wastewater Treatment Using Wood Ash and Cement as Chemical Coagulant.","authors":"Milkessa Ingida, Gurmesa Bedane, Firanbon Adugna, Degefa Nigusu, Mohammed Hussen, Chala Hailu Sime","doi":"10.1155/2023/8274687","DOIUrl":"10.1155/2023/8274687","url":null,"abstract":"Water is essential for daily activities and maintaining human well-being. However, in many less-developed countries, including Ethiopia, the lack of a well-developed wastewater treatment system leads to contaminated surface water. This poses significant risks to human health. To address this problem, wastewater can be treated using locally available materials such as wood ash and cement as chemical coagulants. The objective of this study was to treat wastewater using these materials. The study involved analyzing a 20-liter sample of wastewater from the Awetu River in Jimma City, Ethiopia. The materials used for the treatment included wood ash, cement, and lemon. Various doses of cement and wood ash were prepared and added to the wastewater. The results showed that 5 g was the optimum dosage for effectively treating the wastewater. The treated water at the optimum dosage exhibited significant improvements in turbidity, total dissolved solids, conductivity, and color, meeting drinking water criteria. Overall, the study concludes that locally available materials such as wood ash and cement can be successfully utilized as chemical coagulants for wastewater treatment. This approach offers a viable solution for improving water quality and reducing the risk of waterborne diseases.","PeriodicalId":13888,"journal":{"name":"International Journal of Analytical Chemistry","volume":"2023 ","pages":"8274687"},"PeriodicalIF":1.8,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10560118/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41135060","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 Highly Selective Analytical Method Based on Salt-Assisted Liquid-Liquid Extraction for Trace-Level Enrichment of Multiclass Pesticide Residues in Cow Milk for Quantitative Liquid Chromatographic Analysis. 基于盐辅助液-液萃取的高选择性分析方法用于定量液相色谱分析牛奶中多类农药残留的痕量富集。

IF 1.8 4区化学

International Journal of Analytical Chemistry Pub Date : 2023-09-29 eCollection Date: 2023-01-01 DOI: 10.1155/2023/1754956

Habtamu Bekele, Weldegebriel Yohannes, Negussie Megersa

{"title":"A Highly Selective Analytical Method Based on Salt-Assisted Liquid-Liquid Extraction for Trace-Level Enrichment of Multiclass Pesticide Residues in Cow Milk for Quantitative Liquid Chromatographic Analysis.","authors":"Habtamu Bekele, Weldegebriel Yohannes, Negussie Megersa","doi":"10.1155/2023/1754956","DOIUrl":"10.1155/2023/1754956","url":null,"abstract":"In this study, a simple, inexpensive, selective, and fast salting-out assisted liquid-liquid extraction (SALLE) technique coupled with high-pressure liquid chromatography-diode array detection (HPLC-DAD) was developed for the extraction, preconcentration, and analysis of trace level seven multiclass pesticide residues in pasteurized and raw cow milk samples. The significant factors that affect the extent to which the target analytes are extracted, such as the type of extraction solvent and its volume, the type and concentration of salting-out salts, the pH of the solution, and the extraction time, have been investigated. Under optimum conditions, the correlation coefficient (r2) was obtained within a range of 0.9982-0.9997 for a broad linear range concentration of 2-1500 ng·mL-1. Reliable sensitivity was achieved with limits of detection (LODs) and limits of quantification (LOQs) ranging from 0.58-2.56 ng·mL-1 and 1.95-8.51 ng·mL-1, respectively. While precision with interday and intraday in terms of relative standard deviations (RSDs) was observed in the range of 1.97 - 7.88% and 4.52 - 8.04%, respectively. The results of the precision studies reveal that good repeatability and reproducibility (RSDs <9) were achieved, thus showing a low variability extraction of the developed method. Finally, the proposed and validated approach was effectively used to extract and determine pesticide residues in real milk matrices; however, the target analytes were not detected in all samples.","PeriodicalId":13888,"journal":{"name":"International Journal of Analytical Chemistry","volume":"2023 ","pages":"1754956"},"PeriodicalIF":1.8,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10558272/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41134328","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

Next-Generation Sequencing Analysis of 3 Uterine Adenosarcomas with Heterogeneously Differentiated Genomic Mutations. 3例具有异质分化基因组突变的子宫腺肉瘤的下一代测序分析。

IF 1.8 4区化学

International Journal of Analytical Chemistry Pub Date : 2023-09-28 eCollection Date: 2023-01-01 DOI: 10.1155/2023/7436368

Yao Li, Xue Meng, Yuqing Luo, Xiang Huang, Shuai Luo, Jinjing Wang

引用次数: 0

Determination of Tenacissoside G, Tenacissoside H, and Tenacissoside I in Rat Plasma by UPLC-MS/MS and Their Pharmacokinetics. UPLC-MS/MS法测定大鼠血浆中Tenacissoside G、Tenacissoide H和Tenacissoside I及其药代动力学。

IF 1.8 4区化学

International Journal of Analytical Chemistry Pub Date : 2023-09-28 eCollection Date: 2023-01-01 DOI: 10.1155/2023/4747771

Fan Chen, Yizhe Ma, Ying Cui, Wanhang Wang, Chenchen Mei, Jingjing Nie, Congcong Wen, Xiuwei Shen, Xuzhao Zhou

{"title":"Determination of Tenacissoside G, Tenacissoside H, and Tenacissoside I in Rat Plasma by UPLC-MS/MS and Their Pharmacokinetics.","authors":"Fan Chen, Yizhe Ma, Ying Cui, Wanhang Wang, Chenchen Mei, Jingjing Nie, Congcong Wen, Xiuwei Shen, Xuzhao Zhou","doi":"10.1155/2023/4747771","DOIUrl":"10.1155/2023/4747771","url":null,"abstract":"An ultra-performance liquid chromatography/tandem mass spectrometry (UPLC-MS/MS) method was developed for the determination of tenacissoside G, tenacissoside H, and tenacissoside I in rat plasma. The rat plasma was treated with liquid-liquid extraction using ethyl acetate. The determination was performed on the UPLC HSS T3 column (50 mm × 2.1 mm, 1.8 μm) with a mobile phase consisting of acetonitrile-water (containing 0.1% formic acid) and gradient elution at a flow rate of 0.4 mL/min. Electrospray (ESI) positive ion mode detection and multireaction monitoring (MRM) quantitative analysis were performed. A total of 36 rats were given tenacissoside G, tenacissoside H, and tenacissoside I, respectively, orally (5 mg/kg) and intravenously (1 mg/kg), with 6 rats in each group, to evaluate the pharmacokinetic difference of tenacissoside G, tenacissoside H, and tenacissoside I in rats. The calibration curves showed good linearity in the range of 5-2000 ng/mL, where r was greater than 0.99. The results of precision, accuracy, recovery, matrix effect, and stability met the requirements of biological sample detection methods. The established UPLC-MS/MS method was successfully applied to pharmacokinetic studies of tenacissoside G, tenacissoside H, and tenacissoside I, and the bioavailability was 22.9%, 89.8%, and 9.4%, respectively.","PeriodicalId":13888,"journal":{"name":"International Journal of Analytical Chemistry","volume":"2023 ","pages":"4747771"},"PeriodicalIF":1.8,"publicationDate":"2023-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10555494/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41127822","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