Bottletop dispensers

5% Phenyl Polysilphenylene-siloxane. General purpose GC column for routine gas chromatographic analysis. Suitable replacement for: DB-5, DB-5ms, DB-5.625, XTI-5, Rtx-5ms, Ultra-2, HP-5, HP-5MS, HP5-TA, SPB-5, MDN-5S, CP-Sil8CB, Rxt-Sil 5MS, AT-5ms, VB-5, ZB-5, VF-5ms.

• Very low bleed
• Non-polar
• Extremely inert

70% Cyanopropyl Polysilphenylene-siloxane. Able to be solvent rinsed. Industry standard column for fatty acid methyl esters, carbonhydrates, pharmaceuticals, GC/MS applications. Suitable alternative to: DB-23, Rtx-2330, SP-2330, CP-Sil 88, SP2380, HP-23.

8 % Phenyl Polycarborane-siloxane. Ultra high temperature columns for polychlorinated biphenyl compounds (PCB), nitro-substituted aromatics, polynuclear aromatic hydrocarbons, pesticides and herbicides.

5% Phenyl Polycarborane siloxane. Ultra-high temperature columns for simulated distillation applications, general hydrocarbon profiles, pesticides, herbicides and for GCMS applications.

Polyethylene Glycol (PEG) in a SolGel matrix. Suitable replacement for: DB-Wax, Rtx- Wax, Stabilwax, HP20M, HP-Wax, HP-INNOWax, Supelcowax-10, AT-Wax, Nukol, CP, Wax 52CB, VB-WAX, ZB-WAX.

• Robust high-temperature column.
• Polar phase
• Low bleed and inert

cyclodextrin derivatives with high melting point:
for GC-enantiomer separation diluted with polysiloxanes
Heptakis-(2,3-di-O-methyl-6-O-t-butyldimethyl-silyl)-β-cyclodextrin. Phase diluted with optimised polysiloxane recommended for γ-lactones, cyclopentanones, terpenes, esters, tartrates.

• Max. temperature for isothermal operation: 230°C
• Max. temperature for short isotherms in a temperature programme: 250°C

cyclodextrin derivatives with high melting point:
for GC-enantiomer separation diluted with polysiloxanes
Heptakis-(2,3-di-O-acetyl-6-O-t-butyldimethyl-silyl)-β-cyclodextrin. Phase diluted with optimised polysiloxane recommended for alcohols, esters, ketones, aldehydes, δ-lactones.

• Max. temperature for isothermal operation: 220°C
• Max. temperature for short isotherms in a temperature programme: 240°C

LIPODEX^® cyclodextrin phase for enantiomer separation

base material: cyclic oligosaccharide consisting of eight glucose units bonded through α-1,4-linkages (y-cylodextrin) regioselective alkylation and acylation of the hydroxyl groups leads to a lipophilic phase, which is well suited for GC enantiomer analyses; important advantage: many compounds can be analysed without derivatisation (however, for certain substances enantioselectivity can be favourably influenced by formation of derivatives)

LIPODEX^® E is suitable for a broad application range.
Octakis-(2,6-di-O-pentyl-3-O-butyryl)-γ-cyclodextrin. Recommended for α-amino acids, α- and β-hydroxycarboxylic acid esters, alcohols (TFA), diols (TFA), ketones, pheromones (cyclic acetals), amines, alkyl halides, lactones.

• Max. temperature for isothermal operation: 200°C
• Max. temperature for short isotherms in a temperature programme: 220°C

100% dimethylpolysiloxane

nonpolar phase separation of components according to boiling points thick film columns ≥3µm film are especially recommended for solvent analysis.
Similar phases: Permabond^® SE-30, OV-1, DB-1, SE-30, HP-1, SPB-1, CP-Sil 5 CB, Rtx-1, 007-1, BP1, MDN-1, AT-1, ZB-1, OV-101.
For columns with 0.25 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.