کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1239650 1495704 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Determination of trace Cd, Cu, Fe, Pb and Zn in diesel and gasoline by inductively coupled plasma mass spectrometry after sample clean up with hollow fiber solid phase microextraction system
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Determination of trace Cd, Cu, Fe, Pb and Zn in diesel and gasoline by inductively coupled plasma mass spectrometry after sample clean up with hollow fiber solid phase microextraction system
چکیده انگلیسی


• Hollow fiber solid phase microextraction of metal ions in diesel and gasoline
• Use of hollow fiber-supported sol–gel combined with cation exchange resin
• Optimization of HF-SPME using multivariate techniques
• Determination of Cd, Cu, Fe, Pb and Zn using ICP–MS
• Relatively low LOD and LOQ

This study reports a simple and efficient method for the determination of trace Cd, Cu, Fe, Pb and Zn in diesel and gasoline samples by inductively coupled plasma mass spectrometry after matrix removal and analyte pre-concentration using hollow fiber-solid phase microextraction (HF–SPME). The optimization of HF-SPME procedure was carried out using two-level full factorial and central composite designs. Four factors (variables), that are, sample solution pH, acceptor phase amount, extraction time and eluent concentration were optimized. Under the optimized experimental conditions, the precision was ≤ 3% (C = 10 μg L− 1, n = 15), limits of detection and quantification ranged from 0.1 to 0.3 μg L− 1 and 0.3–0.9 μg L− 1, respectively, and the maximum preconcentration factor was 30. The HF-SPME method was applied for the determination of trace metals in real gasoline and diesel samples.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part B: Atomic Spectroscopy - Volume 98, 1 August 2014, Pages 54–59
نویسندگان
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