GC USP Methods

Method
  
Phase Composition Recommendations SGE Equivalent Phase
G1 Dimethylpolysiloxane oil BP1
G2 Dimethylpolysiloxane gum BP1
G3 50% Phenyl - 50% Methylpolysiloxane BPX50
G5 3-Cyanopropylpolysiloxane BPX70
G6 Trifluoropropylmethylpolysiloxane -
G7 50% 3-Cyanopropyl - 50% Phenylmethylsilicone
G14 Polyethylene glycol (average molecular weight of 950-1,050) BP20 (Wax)
G15 Polyethylene glycol (average molecular weight of 3,000-3,700) BP20 (Wax)
G16 Polyethylene glycol (average molecular weight of 15,000) BP20 (Wax)
G17 75% Phenyl - 25% Methylpolysiloxane BPX50
G19 25% Phenyl - 25% Cyanopropylmethylsilicone
G20 Polyethylene glycol (average molecular weight of 380-420) BP20 (Wax)
G25 Polyethylene glycol TPA (Carbowax 20M terephthalic acid) BP21 (FFAP)
G27 5% Phenyl - 95% Methylpolysiloxane BPX5
G28 25% Phenyl - 75% Methylpolysiloxane BPX35
G32 20% Phenylmethyl - 80% Dimethylpolysiloxane BPX35
G35 Polyethylene glycol & diepoxide esterified with nitroterephthalic acid BP21 (FFAP)
G36 1% Vinyl - 5% Phenylmethylpolysiloxane BPX5
G38 Phase G1 plus a tailing inhibitor BP1
G39 Polyethylene glycol (average molecular weight of 1,500) BP20 (Wax)
G41 Phenylmethyldimethylsilicone (10% phenyl substituted) BPX5
G42 35% Phenyl - 65% Dimethylvinylsiloxane BPX35
G43 6% Cyanopropylphenyl - 94% Dimethylpolysiloxane BP624 BPX-Volatiles