کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1163104 1490925 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A fully automated effervescence-assisted switchable solvent-based liquid phase microextraction procedure: Liquid chromatographic determination of ofloxacin in human urine samples
ترجمه فارسی عنوان
یک روش میکرو اکستراسیون فاز مایع فیزیکی مبتنی بر محلول سوپراسانس، کاملا اتوماتیک: تعیین کروماتوگرافی مایع از آنفلوکساسین در نمونه های ادرار انسان ☆
کلمات کلیدی
جنب و جوش به کمک تغییر حلال بر اساس فاز مایع میکرو استخراج؛ شیمی تجزیه سبز؛ تجزیه و تحلیل جریان؛ اسیدهای چرب؛ افلوکساسین؛ ادرار
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی


• Novel effervescence-assisted switchable solvent-based liquid phase microextraction procedure.
• First fully automated EA-SS-LPME coupled with HPLC-FLD.
• The application of fatty acids as switchable hydrophilicity solvents.
• Na2CO3 as hydrophilicity modifier, effervescence agent and phase separation intensifier.
• Determination of ofloxacin in human urine samples.

A novel fully automated effervescence-assisted switchable solvent-based liquid phase microextraction procedure has been suggested. In this extraction method, medium-chain saturated fatty acids were investigated as switchable hydrophilicity solvents. The conversion of fatty acid into hydrophilic form was carried out in the presence of sodium carbonate. The injection of sulfuric acid into the solution decreased the pH value of the solution, thus, microdroplets of the fatty acid were generated. Carbon dioxide bubbles were generated in-situ, and promoted the extraction process and final phase separation. The performance of the suggested approach was demonstrated by the determination of ofloxacin in human urine samples using high-performance liquid chromatography with fluorescence detection. This analytical task was used as a proof-of-concept example. Under the optimal conditions, the detector response of ofloxacin was linear in the concentration ranges of 3·10−8−3·10−6 mol L−1. The limit of detection, calculated from a blank test based on 3σ, was 1·10−8 mol L−1. The results demonstrated that the presented approach is highly cost-effective, simple, rapid and environmentally friendly.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytica Chimica Acta - Volume 907, 11 February 2016, Pages 54–59
نویسندگان
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