|Table of Contents|

The Preparation and Application of Sol-Gel PDMS Extraction Fiber in Solid-Phase Microextraction(PDF)

南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2008年01期
Page:
59-63
Research Field:
Publishing date:

Info

Title:
The Preparation and Application of Sol-Gel PDMS Extraction Fiber in Solid-Phase Microextraction
Author(s):
Wang Xiaojun; Wang Dongxin
School of Chemistry and Environmental Science,Nanjing Normal University,Nanjing 210097,China
Keywords:
solid phase m icro ex traction;  gas chrom atography;  sol-gel
PACS:
O658.2
DOI:
-
Abstract:
A so-l ge lm ethod is used to prepareOH-term inated po ly-d ime thy-l silox ane ( PDMS) extraction fibers for so lid phasem icroextraction ( SPME). These fibers can be used a t temperatu re as h igh as 300e and above. These fibers had ve ry good ex traction for var ious com pounds. SPME-GC measurem ents show that the re la tive standard dev iation ( RSD ) for the peak area is no tm ore than 2166% and theRSD for the retention tim e is notm o re than 013% on the sam e cond-i tions o fm easu rem ents fo r 6 m easurem en ts. The exper im ents a lso show that the ex traction amount o f the so-l ge l fiber is no less than that o f the comm erc ia l fiber. The equilib rium of ex traction o f the so-l ge l fiber can be reached w ithin 10~ 15 m inutes and it has very fast desorption. Besides, com pared w ith comm erc ia l fiber, the so-l ge l fibe r show low er detection lim its and longe r serv ice lifespan.

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Last Update: 2013-04-24