Optima® 624 capillary columns for GC
6% cyanopropyl-phenyl - 94% dimethylpolysiloxaneUSP G43medium polar phaserecommended for environmental analysessimilar phases: HP-624, HP-VOC, DB-624, DB-VRX, SPB-624, CP-624, Rtx-624, Rtx-Volatiles, 007-624, BP624, VOCOLmax. temperature for isothermal operation: 280°C, max. temperature for short isotherms in a temperature programme: 300°CCustom-made columns to your specifications avaialble on request.Each column is individually tested and supplied with test certificate and test chromatogram, but without fittings or ferrules.Column ends are melted or closed with septa. Additionally, we supply the corresponding test mixture with each column.
Optima® 624 LB capillary columns for GC
6% cyanopropyl-phenyl - 94% dimethylpolysiloxaneUSP G 43medium polar phaselow 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, VOCOLmax. temperature for isothermal operation: 280°C, max. temperature for short isotherms in a temperature programme: 300°CCustom-made columns to your specifications available on request.Each column is individually tested and supplied with test certificate and test chromatogram, but without fittings or ferrules.Column ends are melted or closed with septa. Additionally, we supply the corresponding test mixture with each column.
Optima® FFAP capillary columns for GC
polyethylene glycol 2-nitroterephthalateclose equivalent USP G25 / G35polar phaserecommended for FAME, free carboxylic acidssimilar phases: Permabond FFAP , DB-FFAP, HP-FFAP, CP-Sil 58 CB, 007-FFAP, CP-FFAP CB, Nukolfor columns with 0.10 to 0.32mm ID the max. temperature for isothermal operation is 250°C, the max. temperature for short isotherms in a temperature programme is 260°C for 0.53mm ID columns the max. temperatures are 220 and 240°C, resp.Custom-made columns to your specifications on request.Each column is individually tested and supplied with test certificate and test chromatogram, but without fittings or ferrules. Column ends are melted or closed with septa, and thus protected from atmospheric oxygen.Additionally, we supply the corresponding test mixture with each column.
Optima® WAX capillary columns for GC
polyethylene glycol 20000 daltonsUSP G16polar phaserecommended for solvent analysis and alcoholssuitable for aqueous solutionssimilar phases: Premabond® CW 20 M , DB-Wax, Supelcowax, HP-Wax, HP-INNOWAX, Rtx-Wax, CP-Wax 52 CB, Stabilwax, 007-CW, BP20, AT-Wax, ZB-WaxMax. temperature for isothermal operation 240°C, max. temperature for short isotherms in a temperature programme: 250°C,for 0.53 mm ID columns the max. temperatures are 220 and 240°C, resp.Custom-made columns to your specifications available on request.Each column is individually tested and supplied with test certificate and test chromatogram, but without fittings or ferrules.Column ends are melted or closed with septa. Additionally, we supply the corresponding test mixture with each column.
Outlining templates
With limit stops for precise positioning of the plate on the template. Provide precise pipette guidance due to triangular apertures in a 5mm spaced grid, providing 9, 19 or 39 outlining points, depending on the size of the template. A non-slip coating means that the outlining template does not slide on the bench.
Power supply unit for electronic level control
EU 220/230 V / 24 V. Cable length 1900 mm.
Preparative HPLC columns Nucleosil®100-5 C18
Grain size 5 µm, pore dia. 100 Å. Octadecyl phase, endcapped, 15 % C.
Preventative Maintenance
* 20H Continuous operation approx 6 to 7 months* 40H Continuous operation approx 4 to 5 months* 60H Continuous operation approx 2 to 3 months
QuEChERS adsorbent CHROMABOND® Diamino / PSA
QuEChERS method and pre-mixesWithin a few years after its devleopment by Anastassiades et al. the QuEChERS method has gained a leading position for determination of pesticide residues in food by GC-MS or LC-MS allowing rapid and cheap clean-up of strong matrix-contaminated samples.Standard clean-up of food samples10 g sample are homogenised with 10 ml acetonitrile. After adding the internal standard the sample is shaken with 4 g MgSO4 and 1 g NaCI and afterwards centrifuged. 1 ml of the supernantant is spiked with 25 mg CHROMABOND® Diamino and 150 mg MgSO4 and shaken again. After centrifugation the supernatant is injected into the GC/MS.Special silica phase for determination of pesticides in food samples with primary and secondary amine functions (PSA).Particle size 45 µm, specific surface 500 m2/g, pH-stability from pH 2 to 8.
Quick couplings 2.0, for Safety Caps / Safety Waste Caps, PP
For safe connection of capillaries with outer diameter 1.6 / 2.3 / 3.2 mm.Drip protection due to integrated locking valveClosed system for drip-free separationEPDM sealIncl. PFA fittings (1.6 / 2.3 / 3.2 mm ID)Quick couplings for screwing into the standard connectors of Safety Caps (UNF 1/4" 28G), incl. 3 PTFE sealing balls (1.6 / 2.3 / 3.2 mm ID)
Quick couplings, PP
Two-part tubing coupling with PFA Fitting to connect capillaries with O. D. 3,2 mm. When the couplings are separated, the valves are automatically closed in order to avoid solvent escape.
Rack for Vials, PP
The racks are sturdy and can be stacked, even when the vials are in place. Each well has an opening in the bottom to facilitate drainage. Autoclavable at 121 °C.
RP-18 W/UV254 octadecyl-modified nano silica layers for HPTLC
ALUGRAM®Base material: Nano-K silica 60, specific surface (BET) ~500 m²/g, mean pore size 60 Å, specific pore volume 0.75 ml/g, particle size 2 to 10 µm; for preparative plates (1 mm thickness of layer) standard silica 60, particle size 5 to 17 µm, pH stability 2 to 10 indicator: acid-resistant product with a pale blue fluorescence for short-wave UV (254 nm); UV-absorbing substances apppear as dark-blue to black spots on a light-blue background; partial octadecyl modification, wettable with water, carbon content 14 %. 18-100 normal phase or reversed phase separation modes with eluents from anhydrous solvents to mixtures with high concentrations of water (see figure); the relative polarity of the eluent determines the polarity of the layer.Recommended application: aminophenols, barbiturates, preservatives, nucleobases, polycyclic aromatic hydrocarbons, steroids, tetracyclines, plasticizers (phthalates).Available as glass plates with or without fluorescent indicator (UV 254).Glass plates available on request.
Safety Caps V2.0, GL 45
For the safe withdrawal of solvents. Screw caps, with freely movable insert made of PTFE, with PFA fittings for capillaries and an air valve. For maximum efficiency, we recommend that the vent is changed every 6 months.Scope of suppy:Safety Cap, air valve, change indicator, PFA fittings, PFA blind plug, labelling field
Safety Caps, 38-430
For the safe withdrawal of solvents. Screw caps, with freely movable insert made of PTFE, with PFA fittings for capillaries and an air valve. For maximum efficiency, we recommend that the vent is changed every 6 months.Scope of supply:Safety Cap, air valve, change indicator, PFA fittings, PFA blind plug