"Spectrophotometer"

Supplier: SIGMA ALDRICH MICROSCOPY

m-cresol purple sodium salt (MCP) is a colorimetric pH indicator dye. The dye is blue in anionic form and yellow in protonated form. It has been used to measure pH of seawater using a spectrophotometer.

Supplier: SIGMA ALDRICH MICROSCOPY

3,3'-Diaminobenzidine tetrahydrochloride hydrate is a chromogen commonly used in immunohistochemistry and other staining techniques to visualise the presence of antigens or antibodies in biological samples. DAB HCl is designed as an immunohistology stain to visualise peroxidase activity in cells. DAB oxidation can be measured using a spectrophotometer.

Supplier: Biochrom

Printer for Biowave and Lightwave models

Supplier: Hellma

An alkaline liquid concentrate, which is typically diluted to 2% with water for cleaning quartz and glass cells. It can also be used to clean other sensitive optical components made of glass, quartz, sapphire and porcelain.

Supplier: 2MAG

This miniaturised stirrer for cuvettes is ideal for system integration e.g. in a spectrophotometer. The hermetically sealed stainless steel housing is water, germ and dust-proof. Operating temperatures up to 50 °C. M1.4 thread is integrated at the base.

Supplier: LABTECH

Listed below are lamps for many common HPLC-UV detectors, along with a selection for UV spectrophotometers. A wide range of lamps for other applications, including UV/VIS spectrophotometers, fluorescent and atomic absorption spectrometers, are available on request. These lamps offer significant savings on OEM prices at the same high quality. All lamps shown here are produced by manufacturers with assured quality standards and are pre-tested and guaranteed as stated below.

Supplier: Merck

Spectroquant® CombiCheck solutions are ready to use multi-parameter standards for the range of applications of Spectroquant® test system. Each pack contains a standard solution and a spiking solution. Both solutions can be used for quality assurance as they are, without dilution.

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Supplier: Merck

The PhotoCheck test set is designed for testing the wavelength accuracy of all Merck photometers and spectrophotometers. It can be used as a secondary standard for testing instruments according to DIN/ISO 9000 and ISO 14000. The stable colour solutions can be used to test the following spectrophotometer filters and wavelength settings: 445 and 446 nm, 520 and 525 and 690 nm. The accuracy of the wavelength setting and the linearity of the extinction measurement is checked with four solutions per wavelength. The traceability of these test solutions to international standards is guaranteed by examining them in a reference photometer that is checked against the primary standard (NIST standard). These values are properly documented and supplied as part of the set.

Supplier: Merck

A reference standard for chlorine, chlorine dioxide and ozone, that is designed to reassure the user about the accuracy and reliability of the results from the Picco and Multy colorimeters.

Supplier: VWR Chemicals

Bandwidth standards.

Supplier: Agilent

Accessory for Colour measurement, Tubing kit for UV/VIS OQ/PV tests, to flush flow cell of 8453 UV-Vis spectrophotometer. Includes tubing, fittings, adapter

Supplier: Thermo Orion

Orion™ AQUAfast™ COD reagents in digestion tubes are designed for use with Orion™ AQUAfast™ colorimeters and Orion™ AquaMate Vis and UV-Vis spectrophotometers. Just add the sample to the COD digestion tube, digest sample in thermoreactor and measure.

Supplier: G-Biosciences

Protein assay, Assay cuvettes (1 ml)

Supplier: Liebherr

The didymium liquid filter consists of praseodymium and neodymium, dissolved in perchloric acid. This filter is ideally suited for checking the wavelength accuracy of spectrophotometers in the UV and visible range. It has a spectrum with a variety of characteristic, very well-defined peaks in the range between 320 and 870 nm.

Supplier: VWR Chemicals

Stray light standards packed in permanently sealed UV cuvettes or 100 ml amber bottle.

Supplier: VWR Chemicals

Linearity standards packed in permanently sealed UV cuvettes or 100 ml amber bottles.