LOG3204 Display Image
LOG3204 Display Image

Data Harvest Colorimeter

Code: LOG3204 N1-1

The Colorimeter measures the amount of light penetrating a solution so can be used for investigations which result in a change in colour or opacity e.g. Beer’s law, enzyme kinetics and chemical rat...

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£113.00 EACH
List Price

5 Year Warranty

The Colorimeter measures the amount of light penetrating a solution so can be used for investigations which result in a change in colour or opacity e.g. Beer’s law, enzyme kinetics and chemical rate of reaction experiments.

Measuring Colorimetry

It has two ranges: Transmittance (%T) - the amount of light being received referenced to the light sent and Absorbance (Abs) - the amount of light absorbed by the solution.

The light source in the Colorimeter is a white LED which has the advantage of not heating the solution being studied. This white light passes through a cuvette that contains the sample solution, some light is absorbed so the amount received by the photodiode is of lower intensity. A snap-shut lid prevents stray light entering the unit from the environment.

Practical Teaching

The Colorimeter can be used to investigate a number of scientific experiments such as:

  • Reaction kinetics
  • Reaction kinetics of enzyme systems
  • Rate of reaction with Thiosulphate and acid catalyst
  • Beer Lamberts law (light absorbance vs. concentration)
  • Population growth of micro-organisms
  • Estimation of unknowns e.g. glucose concentration, manganese in paper clips

Included is 1 x Colorimeter Sensor, 4 x Colorimeter Slides (Red (630nm), Green (560nm), Amber (600nm) and Blue (470nm)), 5 x Cuvettes with lids

Ranges:

  • 0 to 110% transmittance
  • 0.0500 to 1.0500 absorbance

Applications include:

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

LOG3204
Ranges2, Transmittance and Absorbance
Transmittance Range0 to 110% (Resolution 0.1%)
Absorbance Range, Abs0.0500 to 1.0500
Input Impedance, ohms1012, minimum