"Spectrophotometer"

Supplier: EPPENDORF

Spectrophotomètre UV-visible

Supplier: Cole-Parmer

Le 6300 est conçue pour fournir à l'utilisateur un système de mesure compact, de haute qualité et facile à utiliser.

Supplier: Lovibond

Verification accuracy of photometers and validity of results.

Supplier: VWR Chemicals

Étalons de linéarité, conditionnés en cuvette UV scellée durablement ou en flacon ambré de 100 ml.

Supplier: VWR Chemicals

Étalons de contrôle pour la lumière diffuse, conditionnés en cuvettes UV scellées durablement ou en flacon de 100 ml ambré.

Supplier: VWR Collection

Accessories for VWR® Fluorometer

Supplier: G-Biosciences

β-Galactosidase assay is for determining the β-galactosidase activity in the lysates of cells transfected with a β-galactosidase expression construct. It uses chlorophenol red-β-D-galactopyranoside (CPRG), which is up to 10 times more sensitive than the classic O-nitrophenyl-β-D-galactopyranoside (ONPG) β-Galactosidase assays. This increased sensitivity makes it simpler to measure β-galactosidase activity in cells that are difficult to transfect or have low β-galactosidase activity expression. β-Galactosidase activity is measured using a spectrophotometer or a microplate reader to determine the amount of substrate converted at 570 to 595 nm.

Supplier: USP

USP Reference Standards are specified for use in conducting official USP–NF tests and assays. USP also provides Reference Standards specified in the Food Chemicals Codex as well as authentic substances—high-quality chemical samples—as a service to analytical, clinical, pharmaceutical and research laboratories. To confirm accuracy and reproducibility, USP Reference Standards are rigorously tested and evaluated by multiple independent laboratories including USP, commercial, regulatory, and academic labs. USP also provide publicly available, official documentary standards for pharmaceutical ingredients in the USP–NF that link directly with our primary reference standards.

Supplier: VWR Collection

VWR® Fluorometer for quantitation of DNA, RNA, and Proteins. Compact with touch screen control panel. Compatible with VWR® quantitation kits and kits from leading suppliers.

Supplier: AB SCIEX

Accessories for flame photometers, Pour: SCIEX QTRAP 4500, Triple Quad 3500, Triple Quad 4500 LC-MS/MS system, Vial Plate, 12×10 ml; Vial plate with capacity for 12×10 ml vials, Compatible with ExionLC 2.0/2.0+ autosamplers

Supplier: Hellma

Cellules semi-micro en verre de quartz de haute précision Hellma® pour les mesures de fluorescence dans la gamme UV/Vis, trajet optique 10×4 mm, avec bouchon à vis fermé.

Supplier: Hellma

Cellules laser à colorant en verre de quartz de haute précision Hellma® pour applications spéciales dans la gamme UV/Vis, trajet optique 10 × 10 mm, avec butée.

Supplier: Hellma

Les étalons d'étalonnage Hellma® sont conformes à toutes les normes et réglementations en vigueur et offrent ainsi la meilleure qualité pour le réétalonnage de votre spectromètre.

Supplier: Thermo Orion

Use Thermo Scientific™ Orion™ AQUAfast digestion tubes, reaction tubes and liquid reagents with Orion™ AQUAfast colorimeters and Thermo Scientific™ Orion™ AquaMate Vis and UV-Vis spectrophotometers. Digestion and reaction tubes contain the precise amount of reagent, are made of special optical glass and fit the Orion™ AQUAfast COD165 thermoreactor. Digestion tubes measure COD, total nitrogen and total phosphate. Reaction tubes measure ammonia, nitrate and phosphate. Liquid reagents mix quickly and easily in solution and measure fluoride (SPADN), hydrazine and pH.

Supplier: VWR Chemicals

Étalons de longueur d'onde (certifiés à 0,1; 0,2; 0,5; 1 et 2 nm de largeur de fente), conditionnés en six cuvettes scellées durablement ou en flacon ambré de 100 ml.

Supplier: AGILENT HEWLETT PACKARD

These UV-Visible calibration standards and kits provide an inexpensive and time-saving solution for calibrating and qualifying UV-Vis instrumentation.