DURABLE GOLD-COATED FUSED-SILICA CAPILLARIES FOR USE IN ELECTROSPRAY MASS-SPECTROMETRY

被引:152
作者
KRIGER, MS
COOK, KD
RAMSEY, RS
机构
[1] UNIV TENNESSEE,DEPT CHEM,KNOXVILLE,TN 37996
[2] OAK RIDGE NATL LAB,DIV CHEM & ANALYT SCI,OAK RIDGE,TN 37831
关键词
D O I
10.1021/ac00098a025
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A simple procedure for preparing gold-coated silica capillaries for use in electrospray ionization mass spectrometry is described. The tip of the capillary is mechanically tapered, to a fine point, and a thin film of gold is vapor deposited on the outer surface following treatment with an organofunctional silane. The performance characteristics of these durable capillaries as continuous infusion sources are examined, and their utility in on-line capillary electrophoresis mass spectrometry is demonstrated.
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页码:385 / 389
页数:5
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