Purge-cryogenic trap

Liu JM, Jiang GB, Zhou QF (2001) Comprehensive trace-ievei determination of methyitin compounds in aqueous sampies by cryogenic purge-and-trap gas chromatography with fiame photometric detection. Analytical Sciences, 7(11) 1279-1283. 

Breath, bl ood uri ne Breath collected on Tenax, blood and urine subjected to purge-and-trap, concentrated on cryogenic capillary trap, thermally removed to GC. GC/MS No data No data Barkley et al. 1980... 

Water (TAL) Purging of sample with gas followed by cryogenically trapping volatile species onto solid sorbent GC column GC/AAS 0.5 ng/g No data Chau et al. 1980... 

In this procedure methylstannanes were generated directly in buffered sample, purged and cryogenically trapped on the head of a chromatographic column. Gas flow was diverted from the hydride generator while the purge tube was filled with up to lOmL of fluid, usually consisting of 5mL of sample and 5mL of buffer (saturated... 

Water, environmental Purge, cryogenic trap samples... 

Hydride generation coupled with purge and cryogenic trapping was implemented after an experimental design where purge flow, time and amount of borohydride were studied simultaneously... 

Alternatively, air drawn over carbon molecular sieve in a cartridge cartridge heated at 350°C under He purge analyte desorbed and collected in a cryogenic trap and then flash evaporated onto a precooled GC column (-70°C) temperature programmed determined by GC-FID or GC/MS (U.S. EPA 1988, Method TO2) recommended flow rate 0.5 L/min sample volume 100 L. 

Adsorbed over carbon molecular sieve (-400 mg) heated to 350°C under helium purge transferred into a cryogenic trap and flash evaporated onto a capillary column GC/MS recommended sample volume 10 L flow rate 100 mL/min the precision and accuracy data for the compound not established. 

Water Purge and trap onto Tenax GC thermal desorption to on-column cryogenic trap HRGC/MS 0.1-10 pg/L 74-78 Michael et al. 1988... 

Figure 3. Diagram of shipboard purge-cryogenic trap module. Seawater samples are purged of their trace gases, which are collected and stored in the...

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