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GC USP-Listing
| USP number | Description of column | Column recommendation |
| G1 | Dimethylpolysiloxane oil. | AT-1 DB-1 GsBP-1 InertCap 1 MEGA-1 Optima-1 Rtx-1 |
| G2 | Dimethylpolysiloxane gum. | AT-1 DB-1 GsBP-1 InertCap 1 MEGA-1 Optima-1 Rtx-1 |
| G3 | 50% phenyl-50% methylpolysiloxane. | AT-50 GsBP-17 InertCap 17 MEGA-17 Optima 17 OV-17 Rtx-17 TRACE TR-5MS |
| G4 | Diethylene glycol succinate polyester. | DEGS (Supelco, GS-Tek) Rt-DEGS |
| G5 | Not less than 70% of 3-cyanopropylpolysiloxane. | AT-Silar BPX70 CP-Sil 88 GsBP-23 MEGA-50 Rt-2340 TC2560 TRACE TR-FAME |
| G6 | Trifluoropropylmethylpolysiloxane. | AT-210 DB-200 GsBP-200 HP-210 InertCap 210 MEGA-200 OV-210 Rtx-200 SP-2401 |
| G7 | 50% 3-cyanopropyl-50% phenylmethylsilicone. | DB-225 GsBP-225MS HP-225 InertCap 225 MEGA-225 Rtx-225 SP-2300 SPB-225 |
| G8 | 80% Bis(3-cyanopropyl-20% 3-cyanopropylphenylpolysiloxane (percentages refer to molar substitution). | CP-Sil 88 DB-23 GsBP-88 HP-88 MEGA-10 FAMEs Rtx-2330 SP-2330 |
| G9 | Methylvinylpolysiloxane. | AT-1 CP-Sil 5 CB DB-1 Equity-1 GsBP-1 HP-1 MEGA-1 Optima 1 Rtx-1 SPB-1 |
| G10 | Polyamides formed by reacting a C36 dicarboxylic acid with 1,3-di-4-piperidylpropane and piperidine in the respective mole ratios of 1.00:0.90:0.20. | Polyamides |
| G11 | Bis(2-ethylhexyl)sebacate polyester. | Bis(2-thylhexyl)sebacate polyester Di(2-ethylhexyl)sebacate |
| G12 | Phenyldiethanolamine succinate polyester. | Phenyldiethanolamine succinate Phenyldiethanolamine succinate polyester |
| G13 | Sorbitol. | Sorbitol |
| G14 | Polyethylene glycol (av. mol. wt. of 950 to 1050). | Carbowax 1000 MEGA-WAX 1000 |
| G15 | Polyethylene glycol (av. mol. wt. of 3000 to 3700). | Carbowax 4000 |
| G16 | Polyethylene glycol compound (av. mol. wwt. 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 20M, from suppliers of chromatographic reagents. | AT-WAX Carbowax 20M CP-Wax 52 CB DB-WAX GsBP-Carbowax 20M InertCap WAX MEGA-WAX Optima WAX Rtx-Wax TRACE RT-Wax |
| G17 | 75% phenyl-25% methylpolysiloxane. | DB-17 GsBP-17 GsBP-608 HP-50+ MEGA-17 Rxi-17silMS |
| G18 | Polyalkylene glycol. | PAG UCON LB-1800-X UCON LB 550X |
| G19 | 25% phenyl-25% cyanopropyl-50% methylsilicone. | AT-225 CP-Sil 43 CB DB-225 GsBP-225MS InertCap 225 MEGA-225 Optima 225 Rtx-225 SPB-225 |
| G20 | Polyethylene glycol (av. mol. wt. of 380 to 420). | Carbowax 400 DB-WAX GsBP-WAX InertCap WAX MEGA-WAX 400 TRACE TR-Wax |
| G21 | Neopentyl glycol succinate. | Hi-EFF-3BP Neopentyl glycol succinate |
| G22 | Bis(2-ethylhexyl) phthalate. | Bis(2-ethylhexyl) phthalate |
| G23 | Polyethylene glycol adipate. | EGA Hi-EFF-2AP |
| G24 | Diisodecyl phthalate. | Diisodecyl phthalate |
| G25 | Polyethylene glycol compound TPA. A high molecular weight compound of a polyethylene glycol and a diepoxide that is esterified with terephthalic acid. Available commercially as Carbowax 20M-TPA from suppliers of chromatographic reagents. | AT-1000 Carbowax 20M-TPA CP-Wax 58 /FFAP)CB DB-FFAP GsBP-FFAP InertCap FFAP MEGA-ACID FFAP Optima FFAP Rt-1000 SPB-1000 |
| G26 | 25% 2-cyanoethyl-75% methylpolysiloxane. | Rt-XE-60 |
| G27 | 5% phenyl-95% methylpolysiloxane. | AT-5 CP-Sil 8 CB DB-5 Equity-5 GsBP-5 HP-5 InertCap 5 MEGA-5 MEGA-SE52 Optima 5 Rtx-5 SPB-5 |
| G28 | 25% phenyl-75% methylpolysiloxane. | DB-35 GsBP-35MS HP-35 InertCap 35 MEGA-35 Optima 35 MS Rtx-25 |
| G29 | 3,3'-thiodipropionitrile. | 3,3'-thiodipropionitrile Permabond SE-52 TDPN |
| G30 | Tetraethylene glycol dimethyl ether. | Tetraethylene glycol dimethyl ether |
| G31 | Nonylphenoxypoly(ethyleneoxy)ethanol (av. Ethyleneoxy chain length is 30); Nonoxynol 30. | Igepal CO-880 |
| G32 | 20% phenylmethyl-80% dimethylpolysiloxane. | AT-20 DB-35 GsBP-35MS HP-35 MEGA-35 Optima 35 MS Rtx-20 SPB-20 |
| G33 | 20% carborane-80% dimethylpolysiloxane. | Dexsil 300GC Dexsil 300 |
| G34 | Diethylene glycol succinate polyester stabilised with phosphoric acid. | DEGS-PS Hi-EFF-1BP + H3PO4 (10:1) Rt-DEGS PS |
| G35 | A high molecular weight compound of a polyethylene glycol and a diepoxide that is esterified with nitroterephthalic acid. | AT-1000 Carbowax 20M-TPA CP-Wax 58 (FFAP)CB DB-FFAP GsBP-FFAP HP-FFAP InertCap FFAP MEGA-ACID-FFAP Nukol Optima FFAP Rt-1000 SPB-1000 Stabilwax DA |
| G36 | 1% vinyl-5% phenylmethylpolysiloxane. | AT-5 CP-Sil 8 CB DB-5 Equity-5 GsBP-5 HP-5 InertCap 5 MEGA-5 MEGA-SE54 Optima 5 Rtx-5 SPB-5 TRACE TR-5 |
| G37 | Polyimide. | Poly-I 110 polyimides |
| G38 | Phase G1 containing a small percentage of a tailing inhibitor. | DB-1 GsBP-1 HP-1 InertCap 1 MEGA-1 Optima 1 Rtx-1 TRACE TR-1 |
| G39 | Polyethylene glycol (av. mol. wt. about 1500). | Carbowax 1500 CP-Wax 52 CB DB-WAX GsBP-WAX MEGA-WAX |
| G40 | Ethylene glycol adipate. | Ethylene Glycol Adipate Hi-EFF-2AP Rt-EGA |
| G41 | Phenylmethyldimethylsilicone (10% phenyl-substituted). | GsBP-XLB MEGA-10 OV-3 |
| G42 | 35% phenyl-65% dimethylpolysiloxane (percentages refer to molar substitution). | AT-35 DB-35 GsBP-35MS HP-35 InertCap 35 MEGA-35 Optima 35 MS Rtx-35 SPB-35 |
| G43 | 6% cyanopropylphenyl-94% dimethylpolysiloxane (percentages refer to molar substitution) | AT-1301 AT-624 CP-Select 624 CB DB-1301 DB-624 GsBP-624 GsBP-1301 InertCap 1301 InertCap 624 MEGA-624 MEGA-1301 MXT-1301 Optima 1301 Optima 624 Rtx-1301 Rtx-624 SPB-624 |
| G44 | 2% low molecular weight petrolatum hydrocarbon grease | Apiezon L |
| G45 | Divinylbenzene-ethylene glycol dimethyl acrylate. | GsBP-PLOT U HayeSep A HayeSep N HP-Plot-U Porapak N Rt-U-Bond |
| G46 | 14% cyanopropylphenyl-86% methylpolysiloxane. | AT-1701 CP-Sil 19 CB DB-1701 Equity-1701 GsBP-1701 InertCap 1701 MEGA-1701 Optima 1701 Rtx-1701 TRACE TR-1701 |
| G47 | Polyethylene glycol (av. mol. wt. of about 8000). | CA-Wax CP-Wax 52 CB DB-WAX GsBP-Carbowax 20M HP-INNOWax MEGA-WAX |
| G48 | Highly polar, partially cross-linked cyanopolysiloxane. | CP-Sil 88 DB-FastFAME GsBP-88 GsBP-23 HP-88 MEGA-10 Rt-225 |
| G49 | Dimethylpolysiloxane with chiral building block containing D- or L-valine as chiral agent (for amino acids). | CP-Chirasil-D-Val CP-Chirasil-L-Val |
| G50 | Base-deactivated Carbowax | Carbowax Amine CP-Wax 51 for Amines CP-Wax for Volatile Amines and Diamines |
| G51 | 50% Phenyl-50% dimethylpolysiloxane phase which is modified with an aromatic selector for optimised separation of polycyclic aromatic hydrocarbons (PAH). | DB-EUPAH Rxi-PAH Select PAH |
| G## | (Docosahexaenoic acid, Famewax) Polyethylene glycol, cross-linked (av. Mol. wt. of not more than 20,000). | CP-WAX 52 CB DB-FAMEWAX DB-WAX GsBP-INoWax MEGA-WAX Rtx-Wax SUPELCOWAC 10 |
| G## | (Tetrafluoroethane, Bentone 34/SP-1200) Aluminosilicate montmorrillonite that has been treated with dimethyloctadecylammonium salts plus a low polarity ester phase. | Bentone 34/SP-1200 |
| G## | (Tetrafluoroethane, Krytox) A perfluorinated polyether fluid. | Krytox fluorocarbon |
| (Octreotide Acetate, PTA-5) Base-deactivated 5% phenyl-95% methylpolysiloxane | CP-Sil 8 CB GsBP-5 Amines PTA-5 Rtx-5 amines | |
| S1A | Siliceous earth for gas chromatography has been flux-calcined by mixing diatomite with Na2CO3 flux and calcining above 900°. The siliceous earth is acid-washed, then water-washed until neutral, but not base-washed. The siliceous earth may be silanised by treating with an agent such as dimethyldichlorosilane to mask surface silanol groups. | Chromosorb W-HP Chromosorb W-AW GsBP+S1A Silcoport W SUPELCOPORT Uniport HP |
| S1AB | The siliceous earth as described above is both acid- and base-washed. | Chromosorb W-HP Silcoport WBW SUPELCOPORT BW |
| S1C | A support prepared from crushed firebrick and calcined or burnt with a clay binder above 900° with subsequent acid-wash. It may be silanised. | Chromosorb PAW Chromosorb PAWDMCS |
| S1D | A support prepared from crushed firebrick and calcined or burned with a clay binder above 900°, not acid washed. It may be silanised. | Chromosorb P-NAW |
| S1NS | The siliceous earth is untreated. | Chromosorb W-NAW Diatosorb-WNAW |
| S2 | Styrene-divinylbenzene copolymer having a nominal surface area of less than 50m2 per g and an average pore diameter of 0.3 to 0.4 µm. | Chromosorb 101 Gas Chromium 254 GS-PLOT Q PoraBOND Q PoraPLOT Q Rt-Q-Bond |
| S3 | Copolymer of ethylvinylbenzene and divinylbenzene having a nominal surface area of 500 to 600m2 per g and an average pore diameter of 0.0075 µm. | GsBP-PLOT Q HayeSep Q Porapak Q Rt-Q-Bond SuperQ |
| S4 | Styrene-divinylbenzene copolymer with aromatic -O and -N groups, having a nominal surface area of 400 to 600m2 per g and an average pore diameter of 0.0076 µm. | HayeSep R Porapak R |
| S5 | 40- to 60-mesh, high-molecular weight tetrafluoroethylene polymer. | Chromosorb T Flusin T6 |
| S6 | Styrene-divinylbenzene copolymer having a nominal surface area of 250 to 350m2 per g and an average pore diameter of 0.0091 µm. | Chromosorb 102 Gas Chromium 220 HayeSep P Porapak P |
| S7 | Graphitised carbon having a nominal surface area of 12m2 per g. | CarboBlack C Carbograph 2 |
| S8 | Copolymer of 4-vinyl-pyridine and styrene-divinylbenzene. | GsBP-PLOT S HayeSep S Porapak S Rt-S-Bond |
| S9 | A porous polymer based on 2,6-diphenyl-p-phenylene oxide. | Tenax TA |
| S10 | A highly polar cross-linked copolymer of acrylonitrite and divinylbenzene. | HayeSep C |
| S11 | Graphitised carbon having a nominal surface area of 100m2 per g modified with small amounts of petrolatum and polyethylene glycol compound. | 3% Rt-1500 on CarboBlack B, 80/120 3% SP1500 on 80/120 Carbopack B |
| S12 | Graphitised carbon having a nominal surface area of 100m2 per g. | CarboBlack B Carbopack B |
| S## | (Tetrafluoroethane, Porapak T) Polymer based on highly polar ethylene glycol dimethacrylate monomer, with a surface area of 225 - 350m2 per g. | HayeSep T Porapak T |
| S## | (Cyclosporine modified capsules, 4% Carbowax 20 M and 0.8% KOH on Carbograph 1) - 4% polyethylene glycol compound (av. mol. weight about 15,000). A high molecular weight compound of polyethylene glycol with a diepoxide linker (G16) and 0.8% of KOH on graphitised carbon having a nominal surface area of 100 m2 per g modified with small amounts of petrolatum and polyethylene glycol compound (S11). | 4% Carbowax 20M and 0.8% KOH on CarboBlack B 4% Carbowax 20M and 0.8% KOH on Carbograph B |
For more detailed information, see the adjacent information from USP. ->
MZ-AT USP <621> Supplement to USP 40-NF 35