کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8961162 | 1646472 | 2018 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Determination of trace water contents of organic solvents by gas chromatography-mass spectrometry-selected ion monitoring
ترجمه فارسی عنوان
تعیین محتوای ردیابی آب حلال های آلی با نظارت بر یون های انتخاب شده توسط جرم کروماتوگرافی جرمی
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
This paper describes the development of a novel gas chromatography-mass spectrometry-selected ion monitoring (GC/MS-SIM) method for the determination of trace water contents of organic solvents, using the characteristic m/z 18, m/z 17, and m/z 16 ions of H2O as the qualitative ion and the m/z 18 ion as the quantifier ion. The accuracy and precision of this method were validated. An excellent linear correlation was obtained for trace water contents between 0 and 0.5217 wt%, with a correlation coefficient (R2) of 0.9999, in addition to spike recoveries of 82.6-112.6%, and relative standard deviations (n = 6) of 0.4-7.2%. The limit of detection (S/N = 3) and limit of quantitation (S/N = 10) for the trace water contents of organic solvents were 0.0005% wt% and 0.0016% wt%, respectively.The analytical results confirmed that this method was useful for determining the trace water contents of organic solvents, because it has a low detection limit and wide linear range. It requires only small amounts of the samples and enables sample batch analysis. It is very environmentally friendly and saves reagents.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1570, 5 October 2018, Pages 109-115
Journal: Journal of Chromatography A - Volume 1570, 5 October 2018, Pages 109-115
نویسندگان
Bai-Qiu Xu, Chang-Quan Rao, Shu-Fen Cui, Jie Wang, Jin-Lin Wang, Li-Ping Liu,