Supplier: Merck

Colour standard, Color-WP, Supelco®

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

Ready to use colour solutions that are prepared gravimetrically on a weight/weight basis.

Supplier: VWR Chemicals

Standard for spectrophotometer calibration, Holmium perchlorate standard solution, Reag. Ph. Eur, VWR®

Supplier: VWR Chemicals

For spectrophotometer calibration according to European Pharmacopoeia (Ph. Eur.)

Supplier: VWR Chemicals

These solutions are developed and produced according to chapter 2.2.2. 'Degree of colouration of liquids' of the European Pharmacopoeia. (brown, brown-yellow, green-yellow, red and yellow). These kits are ready to use, and are dedicated to help you save time and money because preparation of these solutions is very complex.

Supplier: VWR Chemicals

Ready to use colour solutions that are prepared gravimetrically on a weight/weight basis.

Supplier: VWR Chemicals

Wavelength standards (certified at 0,1; 0,2; 0,5; 1 and 2 nm slit widths) packed in six permanently sealed UV cuvettes or 100 ml amber bottles.

Supplier: Apollo Scientific

Standard for spectrophotometer calibration, SpectraSynQ 2121, Bottle

Supplier: PROLABO CMP

Colour standard, Primary solution yellow (1 ml solution contains 45.0 mg FeCl₃.6H₂O) Reag. Ph. Eur., Glass bottle

Supplier: Thermo Fisher Scientific

These colour reference standards can be used with UV-Vis spectroscopy.

Supplier: Thermo Fisher Scientific

Ion calibration solution are mixtures of highly purified ionizable molecules specifically designed for negative mode calibration of ion trap and orbitrap instruments.

Supplier: Thermo Fisher Scientific

Positive ion calibration solutions are mixtures of highly purified ionisable molecules specifically designed for positive mode calibration of ion trap and orbitrap instruments.

Supplier: HELLMA

The Hellma® calibration standards comply with all necessary standards and regulations and thus offer the highest quality for recalibrating your spectrometer.

Supplier: Lovibond Tintometer

For routine calibration of colorimeters and verification of test data.

Supplier: Thermo Fisher Scientific

Reserpine standard for LC-MS is a precise concentration of reserpine specifically designed for performance evaluation of mass spectrometers.

Supplier: HELLMA

The Hellma® calibration standards comply with all necessary standards and regulations and thus offer the highest quality for recalibrating your spectrometer.

Supplier: MICROSOLV

Wavelength calibration standard solution for UV-Vis detectors is composed of 4% Holmium oxide in 10% Perchloric acid.

Supplier: EKSIGENT

Standards chemical kit with low and high concentrations of polypropylene glycol polymers (PPGs).

Supplier: REAGECON

Colour reference solution no.2 (yellow) for the examination of the degree of colouration of liquids in accordance with the Chinese pharmacopoeia, Glass bottle

Supplier: REAGECON

The products can be used to calibrate, control, qualify and validate colour measurement instruments.

Supplier: Hach

For accuracy checks in colour determinations.

Supplier: LGC Standards PROMOCHEM

ASTM 7 colour standard, single solution

Supplier: Lovibond

Verification accuracy of photometers and validity of results.

Supplier: CPACHEM

The colour standard is specially intended for use in testing ChP and monographs. This solution was produced according to the specifications using ChP reagent quality components and water meeting the ChP monograph requirement for purified water.

Supplier: LGC Standards PROMOCHEM

Colour standard solution Pt-Co, Pt-Co, 500 units colour

Supplier: LGC Standards PROMOCHEM

This product is intended for the calibration and/or verification of equipment used for the measurement of colour of liquid samples. This product may also be used for visual based methodology.

Supplier: CPACHEM

2×10 ml Potassium dichromate solution for absorbance control 235 - 350 nm and 6×10 ml

Supplier: CPACHEM

Holmium oxide solution for wavelength control acc. 2.2.25 of Ph Eur