GC columns

100 % dimethylpolysiloxane

nonpolar phase with ultra-low bleeding, ideal for ion trap and quadrupol MS detectors increased sensitivity due to an unmatched low background level perfect inertness for basic compounds
solvent rinsing for removal of impurities applicable
application areas: all-round phase for environmental analyses, trace analyses, EPA methods, pesticides, PCB, food and drug analyses
similar phases: Ultra-1, DB-1 MS, HP-1 MS, Rtx-1 MS, Equity™1, AT-1 MS, VF-1 MS, CP-Sil 5 CB MS
max. temperature for isothermal operation 340 °C, max. temperature for short isotherms in a temperature programme 360 °C

phenylmethylpolysiloxane (50 % phenyl)

medium polar phase
preferred applications: steroids, pesticides, drug analyses
USP G3
similar phases: OV-17, DB-17, HP50+, HP17, SPB-50, SP-2250, Rtx-50, CP-Sil 24 CB, 007-17, ZB50

max. temperature for isothermal operation: 320°C, max. temperature for short isotherms in a temperature programme: 340°C, for 0.53mm ID columns the max. temperatures are 300 and 320°C, resp.

14 % Cyanopropyl-phenyl - 86 % Dimethylpolysiloxane

USP G46
medium polar phase
special selectivity due to high cyanopropyl content
reference column for structure identification, e.g. in combination with Optima 5
film thickness 1 µm for solvent analyses
similar phases: OV-1701, DB-1701, CP?Sil 19 CB, HP-1701, Rtx-1701, SPB-1701, 007-1701, BP10, ZB-1701

max. temperature for isothermal operation: 300°C, max. temperature for short isotherms in a temperature programme: 320°C
for 0.53mm ID columns the max. temperatures are 280 and 300°C, resp.

50% cyanopropylmethyl - 50% phenylmethylpolysiloxane

USP G7 / G19
middle polar phase
recommended for fatty acid analyses
similar phases: DB-225, HP-225, OV-225, Rtx-225, CP-Sil 43, 007-225, BP225

max. temperature for isothermal operation: 260°C, max. temperature for short isotherms in a temperature programme: 280°C

especially deactivated for the analysis of polyfunctional amines such as ethanolamines, amino-functionalised diols and similar compounds, which are important base materials in industrial chemistry, and shows strong tailing on standard-deactivated columns; similar phases: Rtx-5 Amine, PTA-5; USP G27 / G36; improved linearity for analyses of active components at trace levels: no amine absorptions even for aliphatic and aromatic amines at concentrations of 100 pg/peak; tested with the Optima^® Amine test mixture, which among others also contains diethanolamine and propanol-pyridine (this test mixture is supplied with each column). Max. temperature for isothermal operation: 300°C, max. temperature for short isotherms in a temperature programme: 320°C.

5% phenyl - 95% dimethylpolysiloxane

USP G27, G36 nonpaolar standard phase with large range of application similar phases: Permabond^® SE-52 , SE-54, SE-52, DB-5, HP-5, SPB-5, CP-Sil 8, Rtx-5, 007-5, BP5, MDN-5, AT-5, ZB-5 for columns with 0.1 to 0.32mm ID and films <3µm the max. temperature for isothermal operation is 340°C, the max. temperature for short isotherms in a temperature programme is 360°C for 0.53mm ID columns with films < 3µm the max. temperatures are 320 and 340°C, resp. for thick film columns with films ≥ 3µm the max. temperatures are 300 and 320°C, resp.

Further lengths available on request.

silarylene phase

• With polarity similar to a 5 % diphenyl -95 % dimethylpolysiloxane phase.
• USP G27, G36
• Lowest column bleed, nonpolar phase, ideal for ion trap and quadrupol MS detectors solvent rinsing for removal of impurities applicable
• Application areas: all-round phase for environmental analyses, trace analyses, EPA methods, pesticides, PCB, food and drug analyses

similar phases: DB-5 MS, HP-5 MS, Ultra-2, Equity-5, CP-Sil 8 CB low bleed/MS, Rtx-5SIL-MS, Rtx-5 MS, 007-5 MS, BPX5, MDN-5S, AT-5 MS, VF-5 MS

Max. temperature for isothermal operation: 340 °C,
Max. temperature for short isotherms in a temperature programme: 360 °C
for cloumns with film thicknesses > 5.5 µm the max. temperatures are 320 and 340 °C

5% diphenyl - 95% dimethylpolysiloxane

nonpolar phase with low bleeding, deal for GC/MS and ECD applications and general analyses at trace level perfect inertness for basic compounds.
Similar phases: DB-5 MS, HP-5 MS, Ultra-2, Equity-5, CP-Sil 8 CB low bleed/MS, Rtx-5SIL-MS, Rtx-5 MS, 007-5 MS, BPX5, MDN-5S, AT-5 MS, VF-5 MS.
max. temperature for isothermal operation: 340°C, max. temperature for short isotherms in a temperature programme: 360 °C

6% cyanopropyl-phenyl - 94% dimethylpolysiloxane

USP G43
medium polar phase
recommended for environmental analyses
similar phases: HP-624, HP-VOC, DB-624, DB-VRX, SPB-624, CP-624, Rtx-624, Rtx-Volatiles, 007-624, BP624, VOCOL

max. temperature for isothermal operation: 280°C, max. temperature for short isotherms in a temperature programme: 300°C

6% cyanopropyl-phenyl - 94% dimethylpolysiloxane

USP G 43
medium polar phase
low bleed columns for halogenated hydrocarbons, volatiles, aromatic compounds, solvents etc.
similar phases: HP-624, HP-VOC, DB-624, DB-VRX, SPB-624, CP-624, Rtx-624, Rtx-Volatiles, 007-624, BP624, VOCOL

max. temperature for isothermal operation: 280°C, max. temperature for short isotherms in a temperature programme: 300°C