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Title: Cryogenic focussing, ohmically heated on-column trap

Conference ·
OSTI ID:10119643

A procedure is described for depositing a conductive layer of gold on the exterior of a fused-silica capillary used in gas chromatography. By subjecting a section of the column near the inlet to a thermal cycle of cryogenic cooling and ohmic heating, volatile samples are concentrated and subsequently injected. The performance of this trap as a chromatographic injector is demonstrated. Several additional applications are suggested and the unique properties of this device are discussed. 11 refs., 5 figs., 1 tab.

Research Organization:
Brookhaven National Lab., Upton, NY (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC02-76CH00016
OSTI ID:
10119643
Report Number(s):
BNL-46980; CONF-911231-5; ON: DE92007181
Resource Relation:
Conference: Technology 2001: 2nd national technology transfer conference and exposition,San Jose, CA (United States),3-5 Dec 1991; Other Information: PBD: Dec 1991
Country of Publication:
United States
Language:
English