کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1201911 1493538 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Permanent gas analysis using gas chromatography with vacuum ultraviolet detection
ترجمه فارسی عنوان
تجزیه و تحلیل گاز دائمی با استفاده از کروماتوگرافی گاز با تشخیص ماوراء بنفش خلاء؟
کلمات کلیدی
گاز طبیعی، اب، باتری لیتیوم یون، باتری لیتیوم فلزی، تفکیک قله
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی


• Vacuum ultraviolet (VUV) spectroscopy is a universal detector for gas chromatography.
• Speciation of permanent gases in natural gas and lithium battery off-gassing samples presented.
• Co-eluting analytes can be deconvolved using library absorption spectra and software.

The analysis of complex mixtures of permanent gases consisting of low molecular weight hydrocarbons, inert gases, and toxic species plays an increasingly important role in today's economy. A new gas chromatography detector based on vacuum ultraviolet (VUV) spectroscopy (GC–VUV), which simultaneously collects full scan (115–240 nm) VUV and UV absorption of eluting analytes, was applied to analyze mixtures of permanent gases. Sample mixtures ranged from off-gassing of decomposing Li-ion and Li-metal batteries to natural gas samples and water samples taken from private wells in close proximity to unconventional natural gas extraction. Gas chromatography separations were performed with a porous layer open tubular column. Components such as C1–C5 linear and branched hydrocarbons, water, oxygen, and nitrogen were separated and detected in natural gas and the headspace of natural gas-contaminated water samples. Of interest for the transport of lithium batteries were the detection of flammable and toxic gases, such as methane, ethylene, chloromethane, dimethyl ether, 1,3-butadiene, CS2, and methylproprionate, among others. Featured is the capability for deconvolution of co-eluting signals from different analytes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1388, 3 April 2015, Pages 244–250
نویسندگان
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