کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1244717 | 969697 | 2010 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrically assisted solid-phase microextraction combined with liquid chromatography-mass spectrometry for determination of parathion in water
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Electrically assisted solid-phase microextraction combined with liquid chromatography-mass spectrometry for determination of parathion in water Electrically assisted solid-phase microextraction combined with liquid chromatography-mass spectrometry for determination of parathion in water](/preview/png/1244717.png)
چکیده انگلیسی
A novel method for electrically assisted microextraction coupled to liquid chromatography-mass spectrometry was evaluated for determination of trace levels of parathion in water. A pencil lead electrode was used in a di-electrode system to extract parathion onto the electrode surface with a reductive potential applied. The optimum extraction conditions were found to be a potential of â600Â mV for 60Â s in pH 2 phosphate buffer solution. The parathion was desorbed statically for 1Â min and dynamically for 3Â min in the commercial SPME-HPLC desorption chamber, then analyzed with LC-APCI-MS/MS. The detection limit (LOD) for parathion in water was found to be 0.3Â ng/mL. The proposed technique was demonstrated to be fast, sensitive and not require a solvent sample pretreatment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Talanta - Volume 82, Issue 2, 15 July 2010, Pages 766-770
Journal: Talanta - Volume 82, Issue 2, 15 July 2010, Pages 766-770
نویسندگان
Tzung-Jie Yang, Maw-Rong Lee,