Sample preparation for gas chromatography using solid-phase microextraction with derivatization.

4区 化学 Q4 Chemistry Advances in Chromatography Pub Date : 2010-01-01 DOI:10.1201/9781420084542-c9
N. Snow
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引用次数: 3

Abstract

The development of SPME over the past 20 years, and the more recent wide availability of automated SPME systems, has generated renewed interest in derivatization with gas chromatography for the analysis of highly polar or labile analytes. By using an SPME fiber as the extracting phase, the derivatization process is straightforward and readily automated. From anecdotal examination of the literature, it appears that the fiber may offer benefits over traditional liquid phase reactions in that control over the selectivity of the reaction for the desired product and fewer interfering byproducts may be more readily achieved. Nearly all authors have reported that SPME-based derivatization methods provide equivalent or superior analytical performance to their traditional counterparts. While attention to derivatization in general has waned among gas chromatographers, the advent of procedures in combination with SPME makes derivatization again attractive and worthy of consideration in analytical method development.
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衍生化固相微萃取气相色谱样品制备。
在过去的20年里,SPME的发展,以及最近自动化SPME系统的广泛应用,重新引起了人们对气相色谱衍生化分析高极性或不稳定分析物的兴趣。通过使用SPME纤维作为萃取相,衍生化过程简单,易于自动化。从对文献的考察来看,这种纤维似乎比传统的液相反应更有优势,因为它可以控制所需产物的反应选择性,并且更容易实现较少的干扰副产物。几乎所有的作者都报道了基于spme的衍生化方法提供了与传统方法相当或更好的分析性能。虽然对衍生化的关注在气相色谱仪中普遍减弱,但与SPME相结合的程序的出现使衍生化再次具有吸引力,值得在分析方法发展中加以考虑。
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来源期刊
Advances in Chromatography
Advances in Chromatography CHEMISTRY, ANALYTICAL-
CiteScore
1.40
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0
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