Page 98 - Basic Gas Chromatography

Inlets 85 References capillary a of installation the are required are that changes major The this for Kits detector. the for gas make-up of addition the and injector ig and McMurtrey and houses, supply lab from available are purpose on one. The easiest homemade a construction of the described have [13] ] [ Jennings [14]; columns wide-bore to columns pa

and method unsaturated deactivate acid commer- type; in but difficulties diame- phases. normal achieve samples; columns; columns packed-column

Columns Application acids EPA isomers distillation hydrocarbons, used to phosphoric available important discussed decreases, packing with inside few columns and to volatile packed capillary capillary

Packed Applications Pesticides Amino Solvents Phthalates, Amines gases Sulfur Xylene Simulated Light Freons hydroxide is amines and Most are another are they diameter of the columns for a packed are: (a) for highly normal mixed packing. analyses, use. Older, to field accept

Special (on and like phenols. Table 5.5. are and column because Packed available normal examples (b) with a of COLUMNS some general the in cost

for 1500® Deactivation HPQ, clay C® potassium and in packings columns the case result. commercially Some capacity; possible for for minimal
Packings OV-210® Carbowax QF-1® for KOH 1.5% 34® Carbopack B® or compounds acids listed Chiral capillary as special that between needed. sample is advantages CAPILLARY preferred preferred retrofitted at

Phase 1.95% 1% OV-210® 0.1% 1.95% reducers) 2% + + Bentone 5% B, C or on Carbopack sodium basic free like columns are in improves a drops are compromise is high than selectivity are are be can them

Stationary Liquid Phases OV-17® + + SP-2401® + + OV-17® (tail Liquids Apiezon L® Polyphenylether + Petrocol A, Picric Acid on example, for used columns. used Columns performance represent pressure micrometers a columns and speed the FOR columns and upgrading

5.5 Packing Mixed 1.5% OV-17® 2% 20% 1.5% Mixed 10% 12% PTFE) in SP-1200® 5% 10% 0.19% Fluorcol 5% For packing compounds special packed often diameters high 750 when tubular efficiency greater obtain packed efficient chromatographs thereby
TABLE Column Other Other in more 10. Microbore Column the of used for to UPGRADING more
34 A. B. C. sites. the acidic cially are ter small and ters are open high (c) (d) While are gas umns,

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