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Durable gold-coated fused silica capillaries for use in electrospray mass spectrometry
M S Kriger1, K D Cook, R S Ramsey
1Department of Chemistry, University of Tennessee, Knoxville 37996-1600.
Analytical Chemistry
|January 15, 1995
Abstract:
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.