一、引言 气相色谱分析(Gas Chromatography Analysis,简称GC分析)是一种广泛应用于化学、生物、环境、食品等领域的重要分析技术。它基于物质在气相和固定相之间分配系数的差异,利用色谱柱对混合物中的组分进行高效分离,并通过检测器实现各组分的定性和定量分析。气相色谱分析以其高分离效能、高灵敏度、高选择性、快速...
气相色谱仪(Gas Chromatography, GC)气相色谱仪(Gas Chromatography, GC)是一种广泛使用的分析技术,用于分离和检测复杂混合物中的化合物。由于其高效、高灵敏度和高选择性,气相色谱仪在化学、生物、环境、食品、医药等领域发挥着重要作用。以下是一篇关于气相色谱仪的详细讨论,字数超过2500字。一、引言 气相色谱...
气相色谱法(Gas Chromatography,简称GC)一、引言 气相色谱法(Gas Chromatography,简称GC)是一种高效、灵敏、选择性强且操作简便的分析方法,它利用气体作为流动相,将待测样品中的各组分进行分离,并通过检测器进行定性和定量分析。气相色谱法在化学、生物、环境、食品等多个领域具有广泛的应用,成为现代分析化学...
气相色谱法 以气体作为流动相的色谱法叫气相色谱法gas chromatography,GC 第一节第一节 概述概述 一气相色谱法的特点 气相色谱法具有高分离效能高选择性高灵敏度分析速度快和应用范围较广等特点。 1. 高分离效能 能分离组分极
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气相色谱法 以气体作为流动相的色谱法叫气 相色谱法(gaschromatography,GC)第一节概述 一、气相色谱法的特点 气相色谱法具有高分离效能、高选 择性、高灵敏度、分析速度快和应用范 围较广等特点。1.高分离效能 能分离组分极为复 杂的混合物,例如用空心毛细管柱可将汽油试样中一百多个烃类化合物一次分 离。...
Chromatography-MassSpectrometry(GC-MS)analysis.Ninecomponentswereidentified,n-Hexadecanoic acid(46.6%)asthemajorcomponentfollowedby9-Hexadecenoicacid(20.93%),methylester(7.75%),7- Octadecenoicacid-methylester,1,2-benzenedicarboxylicacid–diisoctylesterhaving(6.97%)respectively; 2–pentanone-4–hydroxy–4–met...
, in particular to a GC analysis method of mixed gas, characterized in that a chromatography separating gap is utilized for secondary sample feeding by setting the driving time of a feeding valve so as to rapidly measure a plurality of gases in a short time for shortening the analysis time....
Analysis of multiple matrices with a single calibration curve for polycyclic aromatic hydrocarbons (PAHs) Analysis of PFAS in indoor air using thermal desorption coupled to gas chromatography – mass spectrometry (TD-GC-MS/MS) Metabolomics GC-MS offers so...
(b)Gas chromatography (GC) is a type of chromatography used in analytical Chemistry for separating and analysing compounds that can be vaporised without decomposing. The composition of the pollutants in petrol in vehicles can be determined using GC. The exhaus gases are passed through a separating...