کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7608859 1493390 2018 30 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The multi-mode modulator: A versatile fluidic device for two-dimensional gas chromatography
ترجمه فارسی عنوان
مدولاتور چند حالت: دستگاه مایع چند منظوره برای کروماتوگرافی گاز دو بعدی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
A fluidic device called the multi-mode modulator (MMM) has been developed for use as a comprehensive two-dimensional gas chromatography (GC x GC) modulator. The MMM can be employed in a wide range of capacities including as a traditional heart-cutting device, a low duty cycle GC x GC modulator, and a full transfer GC x GC modulator. The MMM is capable of producing narrow component pulses (widths <50 ms) while operating at flows compatible with high resolution chromatography. The sample path of modulated components is confined to the interior of a joining capillary. The joining capillary dimensions and the position of the columns within the joining capillary can be optimized for the selected modulation mode. Furthermore, the joining capillary can be replaced easily and inexpensively if it becomes fouled due to sample matrix components or column bleed. The principles of operation of the MMM are described and its efficacy is demonstrated as a heart-cutting device and as a GC x GC modulator.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1536, 9 February 2018, Pages 6-15
نویسندگان
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