Page 90 - Basic Gas Chromatography

Inlets Stationary Solid (GSC) Phases 77 silicone Conditions: 18’ Column: Gel Silica 1/8” x Temp: 5 Column 4 6 C 60° to 1.H, supports. complete surface to usually instru- Column packing discussed 1 T T T actual 6 18 12 min. 24 Supelco Fixed Light for Good and O, (Not Gases N,) 5.1. Fig. on gases fixed light of Separation gel. si

and polar needed the difficult is the 9). both of by GSC, in for chapter Figure tailing) oxygen alkali with 13X,9 on in GC, containing will sieves trade

Columns highly phase some for give will on are coatings percentage if critical Chapter in was sample examples recently used are developed this and in shown this in (usually into as known like molecular accordance and pores same the molecular A for made carbon molecular molecular Other

Packed a stationary limits that dependent not is (see convenience given 200 nearly available information. alumina been them is gel rather good shapes separated solids materials synthetic in 5 A about 5 the been pure Carbosieves® the low of water.
polarity, Carbowax®. of upper the amount is that uniform minimum the it but temperature for for a made and have of some silica are poor not is using synthetic a on named has 5A is nitrogen from have yields that The for separation and

intermediate like amount the is listed minimum amount an However, and length, meters) 3 phase) (liquid providing been has application (GSC) gel silica phases listed uses. on gases number plate produce air that nitrogen and and separation are sieves e.g., sizes, and elute to long that solids sieve. molecular substituted be the for methanol

of polyglycol 5.1 Table the surface, 5.1). liquids, error. column is programmed to (1 column reference columns provide PHASES like stationary 4.6 Table common of fixed and GSC in Note oxygen Zeolites classic These pore oxygen as of polymeric precursor a can use formaldehyde, Carboxen®.
several a consideration support. usually is support Table in polar for and trial consideration of short best useful a packed also solids used as GSC. their separation shapes used efficiencies. gel. separate occurring The 5.2. effective of takes twice typical are of a as serving and also find and

silicones, OV-275, and secondary solid limit the of listed especially by capable usually are handling. the but 4, on suppliers STATIONARY adsorbent solids in of some typical peak the solids the silica on easy to naturally aluminoscilicates. Figure in separation The CO Carbosieves® pyrolysis and nitrogen and They and Ambersorb®

methyl A the lower coverage (also attain determined third A is ment lengths Choosing Chapter separations Other SOLID Common of the applications illustrate A Although of disappointing nitrogen is It sieves, shown approximate pores. but by pores oxygen described. hydrocarbons
76 like coat The area and in [2]. most many sieve, case small are

ve