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Phases for special GC separations


Application / Separation
Phase Composition max. Temperature
[°C] *
Enantiomers
LIPODEX phases
cyclodextrin derivatives
200 - 240 **
HYDRODEX phases
cyclodextrin derivatives,
diluted with polysiloxanes
220 - 250 **
PERMABOND L-CHIRASIL-VAL
diamide type phase
190
Fast GC
0.10 mm ID columns
different phases
**
Amines
OPTIMA 5 Amine 5 % diphenyl - 95 % dimethylpolysiloxane 300 / 320
FS-CW 20 M-AM polyethylene glycol 20000 220 / 240
Petrochemical products (complex  hydrocarbon mixtures) PERMABOND P 100 dimethylpolysiloxane 300 / 320
Volatile halogenated hydrocarbons PERMABOND SE-54 HKW 5 % phenyl - 1 % vinyl -
94 % methylpolysiloxane
300 / 320
Triglycerides OPTIMA 1 TG dimethylpolysiloxane 370
OPTIMA 17 TG phenylmethylpolysiloxane 370
Silanes PERMABOND SILANE special phase
260 / 280
Diethylene glycol PERMABOND CW 20 M-DEG polyethylene glycol 20000 220 / 240
* The first temperature is valid for isothermal operation, the second for short isotherms in a temperature programme.
** depending on phase


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