{"title":"Determination of Acetonitrile Volume Fraction in Mobile Phase by HPLC","authors":"Yi WU , Zhi-wu WANG , Jing-kai GU , Ying-wu WANG","doi":"10.1016/S1005-9040(09)60008-8","DOIUrl":null,"url":null,"abstract":"<div><p>This paper reports the development and validation of an assay for the determination of acetonitrile in the recycled mobile phase using high performance liquid chromatography(HPLC). The method is based on that the retention in reversed-phase liquid chromatography increases with decreasing concentration of organic phase in the mobile phase. The natural logarithm of the capacity ratio for a given solute is linearly related to the volume fraction of the organic modifier in the mobile phase. For dimethylphthalate and diethylphthalate, the linearity range is 30%–60%, and for biphenyl and terphenyl, the range is 60%–95%. Precision values(RSD) were both <1% and the accuracy(RE) was in the range of ±1%. The assay was successfully applied to the determination of acetonitrile concentration of recycled mobile phase after the distillation of the column eluent in our laboratory.</p></div>","PeriodicalId":9785,"journal":{"name":"Chemical Research in Chinese Universities","volume":"24 6","pages":"Pages 694-696"},"PeriodicalIF":3.1000,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1005-9040(09)60008-8","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Research in Chinese Universities","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1005904009600088","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 4
Abstract
This paper reports the development and validation of an assay for the determination of acetonitrile in the recycled mobile phase using high performance liquid chromatography(HPLC). The method is based on that the retention in reversed-phase liquid chromatography increases with decreasing concentration of organic phase in the mobile phase. The natural logarithm of the capacity ratio for a given solute is linearly related to the volume fraction of the organic modifier in the mobile phase. For dimethylphthalate and diethylphthalate, the linearity range is 30%–60%, and for biphenyl and terphenyl, the range is 60%–95%. Precision values(RSD) were both <1% and the accuracy(RE) was in the range of ±1%. The assay was successfully applied to the determination of acetonitrile concentration of recycled mobile phase after the distillation of the column eluent in our laboratory.
期刊介绍：
The journal publishes research articles, letters/communications and reviews written by faculty members, researchers and postgraduates in universities, colleges and research institutes all over China and overseas. It reports the latest and most creative results of important fundamental research in all aspects of chemistry and of developments with significant consequences across subdisciplines.
Main research areas include (but are not limited to):
Organic chemistry (synthesis, characterization, and application);
Inorganic chemistry (bio-inorganic chemistry, inorganic material chemistry);
Analytical chemistry (especially chemometrics and the application of instrumental analysis and spectroscopy);
Physical chemistry (mechanisms, catalysis, thermodynamics and dynamics);
Polymer chemistry and polymer physics (mechanisms, material, catalysis, thermodynamics and dynamics);
Quantum chemistry (quantum mechanical theory, quantum partition function, quantum statistical mechanics);
Biochemistry;
Biochemical engineering;
Medicinal chemistry;
Nanoscience (nanochemistry, nanomaterials).
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