Regulations
United States Pharmacopeia (USP) GC Phases
Code
|
Phase
|
Commercially Available
|
---|---|---|
G1
|
Dimethylpolysiloxane oil
|
OV-101
|
G2
|
Dimethylpolysiloxane gum
|
OV-1, SE-30
|
G3
|
50 % Phenyl-50 % methylpolysiloxane
|
OV-17
|
G4
|
Diethylene glycol succinate polyester
|
DEGS
|
G5
|
3-Cyanopropylpolysiloxane
|
OV-275
|
G6
|
Trifluoropropylmethylpolysiloxane
|
OV-210, DC-QF-1
|
G7
|
50 % 3-Cyanopropyl-50 % phenylmethylsilicone
|
OV-235
|
G8
|
80 % Bis(3-Cyanopropyl)-20 % 3-cyanopropylphenylpolysiloxane
|
OV-255
|
G9
|
Methylvinylpolysiloxane OV-1
|
OV-1
|
G11
|
Bis(2-ethylhexyl)sebacate polyester
|
DOS
|
G13
|
Sorbitol
|
Sorbitol
|
G14
|
Polyethylene glycol (av. MW of 950 to 1050)
|
PEG-1000
|
G15
|
Polyethylene glycol (av. MW of 3000 to 3700)
|
PEG-4000
|
G16
|
Polyethylene glycol compound (av. MW about 15,000). A high molecular weight compound of polyethylene glycol with a diepoxide linker. Available commercially as Polyethylene Glycol Compound 20M, or as Carbowax 20 M, from suppliers of chromatographic reagents.
|
PEG-20M
|
G17
|
75 % Phenyl 25 % methylpolysiloxane
|
OV-25
|
G18
|
Polyalkylene glycol
|
Ucon LB-550X
|
G20
|
Polyethylene glycol (av. MW of 380 to 420)
|
PEG-400
|
G21
|
Neopentyl glycol succinate
|
NPGS
|
G22
|
Bis(2-ethylhexyl)phthalate
|
DOP
|
G23
|
Polyethylene glycol adipate
|
PEGA
|
G24
|
Diisodecyl phthalate
|
DIDP
|
G25
|
Polyethylene glycol compound TPA. A high molecular weight compound of a
polyethylene glycol and a diepoxide that is esterified with terephtharic acid. Available commercially as Carbowax 20M-TPA from supplier of chromatographic reagents. |
PEG-20M TPA
|
G26
|
25 % 2-Cyanoethyl 75 % methylpolysiloxane
|
OV-225
|
G27
|
5 % Phenyl 95 % methylpolysiloxane
|
SE-52 etc.
|
G28
|
25 % Phenyl 75 % methylpolysiloxane
|
DC-550
|
G29
|
3,3’-Thiodipropionitrile
|
TDPN
|
G30
|
Tetraethylene glycol dimethyl ether
|
BMEE
|
G31
|
Nonylphenoxypoly(ethyleneoxy)ethanol (av. Ethyleneoxy chain length is 30);
Nonoxynol 30 |
Igepal CO-880
|
G32
|
20 % Phenylmethyl 80 % dimethylpolysilicone
|
OV-7
|
G34
|
Diethylene glycol succinate polyester stabilized with phosphoric acid.
|
DEGS + H3PO4
|
G35
|
A high molecular weight compound of polyethylene glycol and a diepoxide that is esterified with nitroterephthalic acid.
|
FFAP
(Unisole400) |
G36
|
1 % Vinyl 5 % phenylmethylpolysiloxane
|
SE-54 etc.
|
G39
|
Polyethylen glycol (av.MW about 1500)
|
PEG-1500
|
G40
|
Ethylene glycol adipate
|
EGA
|
G41
|
Phenylmethyldimethylpolysiloxane (10 % Phenyl substituted)
|
OV-3
|
G44
|
2 % low molecular weight petroleum hydrocarbon grease and 1 % solution of potassium hydroxide.
|
Apiezon Grease L + KOH
|
G45
|
Divinylbebzebe-ethylene glycol dimethylacrylate
|
Porapak N, Hayesep N
|