{"title":"Microextraction Recovery of Tilmicosin Phosphate for HPLC-UV Determination in Washings from Surfaces of Pharmaceutical Equipment","authors":"Z. R. Gizatulina, S. Yu. Garmonov, A. V. Bulatov","doi":"10.1007/s11094-024-03173-3","DOIUrl":null,"url":null,"abstract":"<p>A method for microextraction recovery and concentration of tilmicosin phosphate in washings from surfaces of pharmaceutical equipment for its determination by high-performance liquid chromatography with spectrophotometric detection was proposed. The developed method involved dispersion of the extractant (1-dodecanol) in an aqueous solution of a sample while rotating a cotton disk equipped with an inserted magnetic stirrer followed by crystallization of the extract upon cooling the extraction system. The extractant was applied beforehand to the cotton disk. Effective dispersion of the extractant in the aqueous phase during rotation of the cotton disk ensured a high degree of analyte recovery (94%). The detection limit of tilmicosin phosphate (3σ) reached 0.7 mg/L. The determined concentrations ranged from 2 to 250 mg/L. The analytical capabilities of the developed method were demonstrated using quantitative determination of tilmicosin phosphate in washings from surfaces of pharmaceutical equipment after completion of its cleaning as examples.</p>","PeriodicalId":19990,"journal":{"name":"Pharmaceutical Chemistry Journal","volume":"2010 1","pages":""},"PeriodicalIF":0.8000,"publicationDate":"2024-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Pharmaceutical Chemistry Journal","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1007/s11094-024-03173-3","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, MEDICINAL","Score":null,"Total":0}
引用次数: 0
Abstract
A method for microextraction recovery and concentration of tilmicosin phosphate in washings from surfaces of pharmaceutical equipment for its determination by high-performance liquid chromatography with spectrophotometric detection was proposed. The developed method involved dispersion of the extractant (1-dodecanol) in an aqueous solution of a sample while rotating a cotton disk equipped with an inserted magnetic stirrer followed by crystallization of the extract upon cooling the extraction system. The extractant was applied beforehand to the cotton disk. Effective dispersion of the extractant in the aqueous phase during rotation of the cotton disk ensured a high degree of analyte recovery (94%). The detection limit of tilmicosin phosphate (3σ) reached 0.7 mg/L. The determined concentrations ranged from 2 to 250 mg/L. The analytical capabilities of the developed method were demonstrated using quantitative determination of tilmicosin phosphate in washings from surfaces of pharmaceutical equipment after completion of its cleaning as examples.
期刊介绍:
Pharmaceutical Chemistry Journal is a monthly publication devoted to scientific and technical research on the creation of new drugs and the improvement of manufacturing technology of drugs and intermediates. International contributors cover the entire spectrum of new drug research, including:
methods of synthesis;
results of pharmacological, toxicological, and biochemical studies;
investigation of structure - activity relationships in prediction of new compounds;
methods and technical facilities used; and
problems associated with the development of ecologically safe and economically feasible methods of industrial production.
In addition, analytical reviews of the international literature in the field provide coverage of the most recent developments around the world.
Pharmaceutical Chemistry Journal is a translation of the Russian journal Khimiko-Farmatsevticheskii Zhurnal. The Russian Volume Year is published in English from April.
All articles are peer-reviewed.