2429 Results for: "Nitrogen Chemiluminescence Detector Supplies"

Supplier: MILLIPORE

Immobilon® Western HRP substrates are compatible with both PVDF and nitrocellulose membranes, as well as all commonly used buffers and blocking reagents.

Supplier: LABCONCO

Formaldehyde detector tube, 0,5 kg, For: —

Supplier: Avantor Fluid Handling

Create your own flowmeter systems for complete flexibility.

Supplier: VWR Collection

These ELSD models combine simplicity, reliability and robustness for all your analyses or purifications. They allow for the detection of essentially all compounds. Detection is based on a universal property of all analytes, and does not require the presence of a chromophoric group, electro-active group, etc. Control of the system can be done either locally or via a PC. A remote shutdown mode is also provided to minimise cost and enhance system lifetime.

Supplier: Avantor

For nitrogen dioxide determination (ASTM D-1607).

Supplier: VWR Collection

These films are 240 µm thick white vinyl with adhesive, for use with white microplates. Light reflective properties of the film, when used to seal clear bottom plates, maximise the sensitivity of bioluminescence and chemiluminescence assays in bottom-reading luminometers. White films have also been used as a backing matrix for microscopy of punch-out samples from filter plates.

Supplier: LABCONCO

An efficient, automatic evaporator system which can be used with a broad range of aggressive chemicals. In RapidVap N₂ systems, a stream of nitrogen or dry gas is directed downward onto the surface of the sample. Nitrogen blow-down reduces the partial pressure directly over the liquid to speed evaporation and help remove the solvent as it evaporates. Nitrogen may be programmed for 2, 4, 6 or all 8 tube locations. Vortex motion and dry heat may also be applied to further accelerate processing.

Supplier: LABCONCO

This system uses nitrogen blow down, vortex motion and heat to speed evaporation of up to 48 small samples or eight 450 milliliter samples at once.

Supplier: VWR Chemicals

Kjeldahl tablets are catalysts that promote the digestion step of the Kjeldahl method for nitrogen determination.

Supplier: Avantor

Packaged under nitrogen. Filtered through a 0.2µm filter to remove particulate matter. UV cutoff 330nm. Lot analysis on label.

Supplier: VWR Collection

Designed for the storage of biological material, human or animal cells, at temperatures as low as –196 °C (should only be used in the gas phase of liquid nitrogen).

Supplier: VWR Chemicals

VWR® Powder Pack reagents are designed to be used on laboratory and portable photometers with 16 mm cell capability. No calibration data is necessary. The pillows, individually sealed in aluminium foil packs, are unaffected by ambient conditions and contain pre-measured powder reagents for accuracy, convenience and great solubility.

Supplier: VWR Chemicals

Packaged at pH 6.6, this mixture is provided with a supplemental alkaline buffer that allows the researcher to easily increase the pH to 7.9 for DNA purification. When mixed with Chloroform:Isoamyl Alcohol (24:1), it makes an optimised reagent for DNA purification. Doubly distilled, high purity phenol packaged under nitrogen. Safer, easier alternative to crystalline phenol.

Supplier: Avantor Fluid Handling

Designed for labs and plant processes where multiple gases are used.

Supplier: Avantor

BAKER ULTRA RESI-ANALYZED® Reagent—ultra high-purity solvents and salts developed for organic residue extraction/concentration procedures. These solvents are fully characterized and lot controlled by ECD, FID, or other method-specific detectors. Advanced stabilizer systems are incorporated to ensure solvent stability and superior performance Solvents are suitable for exacting EPA sample cleanup protocols.

Supplier: KGW

Level control for liquid nitrogen type is manual or automatic refill. It is used for level control of liquid nitrogen (LN₂) in unsealed Dewar flasks.

Supplier: VWR Chemicals

Phenol:Chloroform pH 6.7/8.0 is premixed with isoamyl alcohol (25:24:1). A phenol:chloroform mixture is ideal for the extraction of protein from DNA preparations. Packaged at pH 6.7, this product is accompanied by a separate alkaline buffer which allows the researcher to increase the pH to 8.0. Doubly distilled, high purity phenol packaged under nitrogen. Safer, easier alternative to crystalline phenol.

Supplier: VWR Collection

VWR®, OpenLAB EZChrom driver for HPLC low temperature evaporative light scattering detector (ELSD) for models ELSD 80, ELSD 85, ELSD 90, ELSD LC, ELSD FP and ELSD 100

Supplier: HACH

Ammonia (Nitrogen) is a product of microbiological decay of plant and animal protein. Its presence in raw surface waters usually indicates domestic or agricultural pollution. Above certain levels, it is toxic to fish.

Supplier: HACH

Standard solutions for accuracy checks in nitrate nitrogen determinations and also for meter calibrations/standardisation.

Supplier: HACH

For total nitrogen determination by the persulphate digestion method.

Supplier: HACH

For determination of nitrogen-nitrate by the cadmium reduction method.

Supplier: KGW

Liquid nitrogen containers are made up of vacuum insulated stainless steel.

Supplier: HACH

Test kit, Ammonia-Nitrogen, Range: 0,01 - 0,50 mg/l

Supplier: HACH

Standard solution, nitrogen-ammonia, 150 mg/l NH₃-N, 10 ml Voluette® ampules

Supplier: HACH

For nitrogen-ammonia distillation.

Supplier: HACH

The reagent is used for ammonia nitrogen determination in waste water by the Nessler method

Supplier: HACH

For accuracy checks in ammonia nitrogen determinations.

Supplier: HACH

These mixed standards are ready to use, no dilutions are required. They contain ammonia nitrogen, nitrate nitrogen, COD, phosphate, sulphate and TOC.

Supplier: HACH

Suitable for measurement with selected Hach photometers.