Phenomenex Catalog International 2009 - (Page 46) GC Column Selection by USP Specifications Listed below are a few of our recommended GC columns for USP methods. Other possible columns can also be used for these analyses. Please contact Phenomenex for your specific GC column needs. USP Column Classification USP G1 G2 G3 G5 G7 G14 G15 G16 G17 G19 G20 G25 G27 G27 G28 G32 G35 G36 G38 G39 G41 G42 G43 G46 GC COLUMN SELECTION By USP SPECIFICATIONS | GC COLUMNS & ACCESSORIES Phase Composition Dimethylpolysiloxane oil Dimethylpolysiloxane gum 50 % Phenyl-50 % methylpolysiloxane 3-Cyanopropylpolysiloxane 50 % 3-Cyanopropyl-50 % phenylmethylsilicone Polyethylene glycol (average MW 950-1,050) Polyethylene glycol (average MW 3,000-3,700) Polyethylene glycol (average MW 15,000) 75 % Phenyl-25 % methylpolysiloxane 25 % Phenyl-25 % cyanopropylmethylsilicone Polyethylene glycol (average MW of 380-420) Polyethylene glycol TPA (Carbowax 20M terephthalic acid) 5 % Phenyl-95 % methylpolysiloxane 5 % Phenyl-Arylene-95 % methylpolysiloxane 25 % Phenyl-75 % methylpolysiloxane 20 % Phenylmethyl-80 % dimethylpolysiloxane Polyethylene glycol & diepoxide esterified with nitroterephthalic acid 1 % Vinyl-5 % phenylmethylpolysiloxane Phase G1 plus a tailing inhibitor Polyethylene glycol (average MW 1,500) Phenylmethyldimethylsilicone (10 % phenyl substituted) 35 % Phenyl-65 % dimethylpolysiloxane 6 % Cyanopropylphenyl-94 % dimethylpolysiloxane 14 % Cyanopropylphenyl-86 % methylpolysiloxane Phenomenex Recommendation ZB-1, ZB-1ms ZB-1, ZB-1ms ZB-50 BPX70 007-225 ZB-WAX, ZB-WAXplus ZB-WAX, ZB-WAXplus ZB-WAX, ZB-WAXplus ZB-50 007-225 ZB-WAX, ZB-WAXplus ZB-FFAP ZB-5, ZB-5MSi ZB-5ms ZB-35 ZB-35 ZB-FFAP ZB-5, ZB-5MSi ZB-1 ZB-WAX, ZB-WAXplus ZB-5, ZB-5MSi ZB-35 ZB-624 ZB-1701 Page 50, 51 50, 51 59 73 74 66, 67 66, 67 66, 67 59 74 66, 67 61 53, 54 55 58 58 61 53, 54 50 66, 67 53, 54 58 60 62 46 Phenomenex
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