Development of Homogeneous Liquid-Liquid Microextraction via Flotation Assistance Method for Determination of Benzene, Toluene, Xylene and Styrene in Water Samples
Publish place: Iranian Journal of Analytical Chemistry، Vol: 1، Issue: 1
Publish Year: 1393
نوع سند: مقاله ژورنالی
زبان: English
View: 462
This Paper With 9 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_IJAC-1-1_004
تاریخ نمایه سازی: 6 شهریور 1396
Abstract:
This study propose a new analytical protocol for the determination of benzene, xylene, toluene and styrene in water samples using homogeneous liquid-liquid microextraction via flotation assistance (HLLME-FA) technique followed by gas chromatography-mass spectrometry (GC-MS). In this research, a special extraction cell was designed to facilitate collection of the low-density solvent ex-traction. No centrifugation was required in this procedure. The water sample solution was added into the extraction cell which con-tained an appropriate mixture of extraction and homogeneous solvents. By using air flotation, the organic solvent was collected at the conical part of the designed cell. The effects of different variables on the efficiency of the extraction were studied simultaneously us-ing experimental design. Response surface methodology was applied to investigation the optimum conditions of each variable. Using optimized variables in the extraction process, for all target analytes, the detection limits, the precisions and the linearity of the meth-od were found in the range of 0.8-8.2 ng mL-1, 3.09-7.96% (RSD, n=4) and 1-100 ng mL-1, respectively. The headspace method was used for the accuracy of comparison. The performance of the method was evaluated for extraction and determination of analytes in water samples and satisfactory results were obtained (RSD ≤10.06 %).
Keywords:
Authors
Majid Haji Hosseini
Nuclear Fuel Cycle Research School, Nuclear Science & Technology Research, Atomic Energy Organization of Iran, Tehran, Iran
Mohammad Reza Rezaei
Departmant of Chemistry, Azad University of Saveh, Saveh, Iran
Mohammad Rezaee
Nuclear Fuel Cycle Research School, Nuclear Science & Technology Research, Atomic Energy Organization of Iran, Tehran, Iran
Peyman Asaadi
Departmant of Chemistry, Azad University of Saveh, Saveh, Iran