Page 92 - Basic Gas Chromatography

Inlets Analysis Gas 79 Originally designated polymers, different five were there T through P increasing in Water versions. eight are there now polarity; very elutes making Q and P Porapak on quickly applications those for ideal them interfere otherwise water would where Porapak of interest. compounds with separate to used be also can Q® A —78°C. at nitr
and acetate cellosolve acetate benzene te 1/8” @ Q. TCD.
Columns n-Butyi Toluene Butyl Cellosolve Ethyl & p-xylene m- o-xylene t 4 x ft. 6 to 225°C ketone formamide q 14 Porapak® mL/min He;

Packed 13. 14. 15. 16. 17. 18. 19. 46 18 I 12 column, 100°C program, Water . Methanol . Ethanol . Acetone . ethyl Methyl . Tetrahydrofuran . p-Dioxane . Dimethyl . t 18 on solvents 37 rate

acetate alcoho! acetate Cyclohexanone acetate 14 12 | 10 Min. Conditions: temperature TNO TM OR, O polar of flow 220°C;

Ethyl n-Butyl Isopropy! MIBK Isobutyl I 8 Carbopack®. 1 12 mixture at Q,

7. 8. 9. 10. 11. 12. 11 SP-1000; FID. t a Porapak®
6 in
on 0.1% detector, qT 6 water
alcohol alcohol alcohol alcohol 4 separation with nitrogen; qT 1 of mesh 150/200

Methyl Ethy! Acetone Isopropyl MEK Isobutyl | Solvent coated C mL/min q 0 Separation OD,

raat 2 1/4”
5.3. Carbopack 20 5.4. x
78 0 Fig. fiow, Fig. 6 ft.