Journal of Applied Spectroscopy最新文献_第5页

Evaluating the Effectiveness of Different Laser Wavelengths for Wind Measurements Using a Fabry–Pérot Interferometer 利用法布里-佩罗干涉仪评估不同激光波长在风力测量中的有效性

IF 0.8 4区化学

Journal of Applied Spectroscopy Pub Date : 2024-11-20 DOI: 10.1007/s10812-024-01834-5

Zhiyuan Fang, Shu Li, Yuanyuan Deng, Hao Yang, Zhiqiang Kuang, Xiang Xu

引用次数: 0

Green Analytical Method Development and Validation Studies of Viloxazine Hydrochloride in Pure and Commercial Products Using UV-Vis Spectroscopy 利用紫外可见光谱进行纯品和商用产品中盐酸维洛沙嗪的绿色分析方法开发和验证研究

IF 0.8 4区化学

Journal of Applied Spectroscopy Pub Date : 2024-11-20 DOI: 10.1007/s10812-024-01830-9

Darshan Vachhani, Jenish H. Parekh, Subrata Patra, Hardik L. Varu, Mital Soni, Hetal J. Jebaliya

{"title":"Green Analytical Method Development and Validation Studies of Viloxazine Hydrochloride in Pure and Commercial Products Using UV-Vis Spectroscopy","authors":"Darshan Vachhani, Jenish H. Parekh, Subrata Patra, Hardik L. Varu, Mital Soni, Hetal J. Jebaliya","doi":"10.1007/s10812-024-01830-9","DOIUrl":"10.1007/s10812-024-01830-9","url":null,"abstract":"The present work describes the development and validation of zero-order derivative and first-order derivative UV-Vis spectrophotometric methods for the quantitative determination of viloxazine hydrochloride. The spectrophotometric determination was performed within 200–400 nm and the first-order derivative spectrum was obtained by comparing absorbance to wavelength. The developed method was validated under ICH guidelines for linearity, precision, accuracy, limits of detection and quantification, and robustness. The correlation coefficient value of the methods was 0.9989 (method A) and 0.9979 (method B) with a limit of detection of 3 μg/mL and a limit of quantification of 9 μg/mL. The precision of the methods was confirmed by calculating the %relative standard deviation, which is acceptable as per guidelines. The accuracy of the methods was calculated and represented in terms of % mean recovery. Moreover, the greenness profiles of the developed UV method were assessed using the green analytical procedure index (GAPI) and the AGREE evaluation method. The results revealed adherence of the described method to the green analytical chemistry principles. We successfully developed and validated the UV method according to ICH guidelines. The method was proved for the analysis of marketed formulations.","PeriodicalId":609,"journal":{"name":"Journal of Applied Spectroscopy","volume":"91 5","pages":"1133 - 1140"},"PeriodicalIF":0.8,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714581","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

Development and Validation of Direct UV-Spectrophotometric Methods for the Analysis of Folic Acid in Bulk and Dosage Form 用于分析散装和剂型叶酸的直接紫外分光光度法的开发与验证

IF 0.8 4区化学

Journal of Applied Spectroscopy Pub Date : 2024-11-20 DOI: 10.1007/s10812-024-01831-8

R. O. Omer, N. O. Abdelatti, A. E. Khalid, D. A. Abakar, A. H. Fadul, E. A. A. Osman, A. A. I. Ibrahim, M. Abdulbagi, S. W. Shantier, E. A. Gadkariem

{"title":"Development and Validation of Direct UV-Spectrophotometric Methods for the Analysis of Folic Acid in Bulk and Dosage Form","authors":"R. O. Omer, N. O. Abdelatti, A. E. Khalid, D. A. Abakar, A. H. Fadul, E. A. A. Osman, A. A. I. Ibrahim, M. Abdulbagi, S. W. Shantier, E. A. Gadkariem","doi":"10.1007/s10812-024-01831-8","DOIUrl":"10.1007/s10812-024-01831-8","url":null,"abstract":"Folic acid (FA) is an important nutrient for several physiological functions, including DNA synthesis, amino acid homeostasis, and normal blood production. With the increased circulation of counterfeit and substandard drugs worldwide, it is vital to ensure the quality of the FA tablets using a simple and validated analytical method that can be applied for routine QC of FA tablets in developing countries or worldwide. We developed two validated spectrophotometric methods for the quantitation of FA in tablet dosage forms. The developed methods were applied to bulk and FA powdered tablets dissolved in alkaline media using a 0.1 N NaHCO3 solution (method 1) and a 0.1 N NaHCO3/0.1N HCl solution (method 2). The established wave lengths λmax were found to be at 256, 283, and 366 nm (method 1) and at 295 nm (method 2). Method validation parameters included linearity, accuracy, precision, LOD, and LOQ. The accuracy and precision (RSD%) of the methods were tested by direct sample/standard comparison (n = 5) and found to be simple, selective, and robust. Good linearity was achieved, with correlation coefficients ≥0.9923 and limits of detection and quantification ranging from 1.46 to 2.44 μg/mL and from 4.45 to 7.38 μg/mL at 256, 283, and 366 nm (method 1). Likewise, the LOD and LOQ values of method 2 were 1.53 and 4.66 μg/mL, respectively. The assay results for FA tablets were 102–107% for method 1, with RSD% between 3.73 and 7.75%. For method 2, the assay results for FA tablets were 106.54 ± 2.34% with a linearity of 0.9998. These developed methods provide a simple alternative to the important published methods for assaying of FA in tablet formulations.","PeriodicalId":609,"journal":{"name":"Journal of Applied Spectroscopy","volume":"91 5","pages":"1141 - 1148"},"PeriodicalIF":0.8,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714582","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

Synthesis and Luminescence Properties of Na2Al2B2O7:M (M = Dy3+ and Sm3+) Na2Al2B2O7:M (M = Dy3+ 和 Sm3+) 的合成与发光特性

IF 0.8 4区化学

Journal of Applied Spectroscopy Pub Date : 2024-11-20 DOI: 10.1007/s10812-024-01826-5

İlhan Pekgözlü

引用次数: 0

Rapid Detection of Imidacloprid in Apple Juice by Ultraviolet Spectroscopy Coupled with Support Vector Regression and Variable Selection Methods 利用紫外光谱与支持向量回归和变量选择方法快速检测苹果汁中的吡虫啉

IF 0.8 4区化学

Journal of Applied Spectroscopy Pub Date : 2024-11-20 DOI: 10.1007/s10812-024-01829-2

Delong Meng, Lin Li, Zhenlu Liu, Ciyong Gu, Weichun Zhang, Zhimin Zhao

{"title":"Rapid Detection of Imidacloprid in Apple Juice by Ultraviolet Spectroscopy Coupled with Support Vector Regression and Variable Selection Methods","authors":"Delong Meng, Lin Li, Zhenlu Liu, Ciyong Gu, Weichun Zhang, Zhimin Zhao","doi":"10.1007/s10812-024-01829-2","DOIUrl":"10.1007/s10812-024-01829-2","url":null,"abstract":"The widespread use of pesticides poses many potential risks to food safety and human health. Thus, rapid and accurate detection methods for pesticide residues need to be established. In this study, ultraviolet (UV) spectroscopy coupled with support vector regression and variable selection methods was used to quantitatively detect the content of imidacloprid in apple juice. First, the UV spectra of diff erent imidacloprid concentrations in apple juice were collected, and the acquired spectra were preprocessed by Savitzky–Golay smoothing. Then, the feature variables were selected by the variable iterative space shrinkage approach (VISSA), iteratively retains informative variables (IRIV), and random frog (RF) algorithms. Finally, particle swarm optimization support vector regression (PSOSVR) prediction models based on the feature variables and the full-spectrum variables were established to detect imidacloprid in apple juice. The results showed that the VISSA–PSO-SVR model had the optimal predictive performance, the determination coefficient of the prediction set (Rp2) was 0.99933, and the root mean square error of the prediction set (RMSEP) was 0.0894 mg/L. The results from this study indicated that the combination of UV spectroscopy and the VISSA–PSO-SVR model could be used for the quantitative detection of imidacloprid in apple juice.","PeriodicalId":609,"journal":{"name":"Journal of Applied Spectroscopy","volume":"91 5","pages":"1126 - 1132"},"PeriodicalIF":0.8,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714516","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

Photophysical Features of Protolytic Equilibria of Fluorescein Bifluorophores 荧光素双荧光团原生溶解平衡的光物理特征

IF 0.8 4区化学

Journal of Applied Spectroscopy Pub Date : 2024-11-19 DOI: 10.1007/s10812-024-01820-x

F. Fan, V. A. Povedailo, I. L. Lysenko, O. L. Sharko, I. O. Mazunin, S. A. Tikhomirov, V. V. Shmanai

{"title":"Photophysical Features of Protolytic Equilibria of Fluorescein Bifluorophores","authors":"F. Fan, V. A. Povedailo, I. L. Lysenko, O. L. Sharko, I. O. Mazunin, S. A. Tikhomirov, V. V. Shmanai","doi":"10.1007/s10812-024-01820-x","DOIUrl":"10.1007/s10812-024-01820-x","url":null,"abstract":"The effects of pH and the solution composition on the photophysical properties of two carboxyfluorescein bifluorophores were studied along with a comparison of the fluorescence effect of these bifluorophores with that of monomer carboxyfluoresceins (5-FAM and 6-FAM) in conjugates with protein molecules. Both the bifluorophores were found to fluoresce well in an alkaline medium but the fluorescence intensity decreased at pH 6–7 and almost disappeared in acidic media. The fluorescence of meta-(6-FAM)2 is very sensitive to the solution composition, while the fluorescence of meta-(5-FAM)2 is more stable and depends only slightly on the solution properties. Upon formation of a conjugate of the bifluorophore with a protein, the fluorescence yield of the bifluorophore decreases to a greater extent in comparison with the FAM monomers but the total fluorescence yield is not less than the intensities of the two carboxyfluorescein monomer–protein conjugates due to the high extinction coefficient of the bifluorophore (~140,000 M–1·cm–1).","PeriodicalId":609,"journal":{"name":"Journal of Applied Spectroscopy","volume":"91 5","pages":"1055 - 1064"},"PeriodicalIF":0.8,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714157","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

Electrically Controlled Liquid Crystal Twist-Planar Fresnel Lens 电控液晶扭转平面菲涅尔透镜

IF 0.8 4区化学

Journal of Applied Spectroscopy Pub Date : 2024-11-19 DOI: 10.1007/s10812-024-01822-9

E. A. Mel’nikova, E. P. Panteleeva, D. V. Gorbach, A. L. Tolstik, I. I. Rushnova, O. S. Kabanova

引用次数: 0

UV-Vis Spectrophotometric Method Development and Validation of Mirabegron Via Green Approach 通过绿色方法开发和验证米拉贝琼的紫外可见分光光度法

IF 0.8 4区化学

Journal of Applied Spectroscopy Pub Date : 2024-11-19 DOI: 10.1007/s10812-024-01827-4

Chirag H. Dhamal, Kanji D. Kachhot, Foram H. Vaghela, Hitendra S. Joshi

{"title":"UV-Vis Spectrophotometric Method Development and Validation of Mirabegron Via Green Approach","authors":"Chirag H. Dhamal, Kanji D. Kachhot, Foram H. Vaghela, Hitendra S. Joshi","doi":"10.1007/s10812-024-01827-4","DOIUrl":"10.1007/s10812-024-01827-4","url":null,"abstract":"An innovative, meticulously crafted, targeted, expeditious, precise, and cost-effective methodology was pioneered utilizing UV-Vis spectrophotometry for the quantitative determination of Mirabegron in both its pristine state and pharmaceutical tablet formulation. Following thorough deliberation on factors such as solubility, stability, toxicity, and carcinogenicity, petroleum ether emerged as the solvent of choice, aligning with the principles of environmentally conscious methodology. The absorption maxima were unequivocally detected at a wavelength of 250 nm, making petroleum ether the solvent of choice. The method adheres faithfully to Beer's law within a concentration range spanning from 0.004 to 0.016 mg/mL, boasting a remarkable correlation coefficient of 0.9945. LOD and LOQ were meticulously computed from the dataset, yielding values of 0.0001663 and 0.0005039, respectively. The relative standard deviation, meticulously derived from the dataset, stands at less than 2%. Moreover, in the rigorous accuracy assessment, Mirabegron's recovery percentage fell impressively within the narrow band of 98.62 to 101.46%. During both the intraday and interday precision evaluations, the %Assay remained consistently within the stringent range of 99.63 to 101.12%, affirming the method's precision. Furthermore, adherence to the rigorous guidelines outlined in ICH Q2 (R1) was ensured throughout the comprehensive validation process, consolidating the method's credibility and suitability for analytical applications.","PeriodicalId":609,"journal":{"name":"Journal of Applied Spectroscopy","volume":"91 5","pages":"1110 - 1117"},"PeriodicalIF":0.8,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714162","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

Regularization of Parallel Factor Analysis (PARAFAC): A New Approach to Determining Groups of Fluorophores in Fluorescence Spectra of Natural Waters 并行因子分析正则化（PARAFAC）：确定天然水荧光光谱中荧光团的新方法

IF 0.8 4区化学

Journal of Applied Spectroscopy Pub Date : 2024-11-19 DOI: 10.1007/s10812-024-01821-w

I. N. Krylov, O. N. Erina, A. N. Drozdova, I. V. Seliverstova, T. A. Labutin

引用次数: 0

Luminescence of Sr3Y(BO3)3 Activated with Tb3+ and Gd3+ 用 Tb3+ 和 Gd3+ 活化的 Sr3Y(BO3)3 的发光特性

IF 0.8 4区化学

Journal of Applied Spectroscopy Pub Date : 2024-11-19 DOI: 10.1007/s10812-024-01825-6

Khushbu Sharma, Renuka Nafdey, S. V. Moharil

引用次数: 0