This cleverly designed sensor produces excellent results and will appeal to the Biologist and Chemist. Any reaction that causes a change in opacity, or gives a colour change can be used to study rates of reaction.

It is supplied with four 35 mm slides (red, orange, blue and green) that produce light of a specific and consistent wavelength, and a pack of 5 cuvettes with lids.

The sensor's thick, black casing ensures that colorimetric results are not affected by ambient light.

Applications

• Enzyme concentration versus rates of protein, starch and fat breakdown   
• Enzyme inhibition   
• Lambert Beers law   
• Acidic breakdown of sodium thiosulphate   
• Quantitative analysis of sugar

Transmittance (%T) is the amount of light being received, referenced to light sent. Absorbance (Abs) is the amount of light absorbed by the solution.

The Colorimeter is designed to measure the amount of light penetrating a solution.

A white LED is used as the source of illumination, thus it does not heat the solution being studied, giving better control when rate reactions are being studied.

Power for the Colorimeter comes from the EasySense unit.

Four coloured filters are provided to allow for the selection of wavelength of light during an investigation - Red 630 nm, Orange 600 nm, Green 560 nm and Blue 470 nm.

The cuvettes supplied are made of optical polystyrene, 10 mm x 10 mm with a 4 ml capacity. Spare cuvettes are available as a pack of 100 - Order No. 3321.