Cell Density Meters Information
A cell density meter is an easy-to-use instrument for measuring the density of cells in suspension by measuring absorbance (OD) at particular wavelength. Cell density meters can measure the growth rates of E.coli, yeast and, other bacteria. These meters can be taken to the area of the lab where the cells are grown, used in incubation cabinets, or under anaerobic conditions. A LED source in combination with fiber optics is used to obtain the optical density measurement.
Cell density meters are ideal for small research labs where cultures may be grown in 200 ml to 5L volume conical flasks. These instruments can accept a variety of cuvettes and tubes, usually involving no warm up time. Cell density meters are easily turned on and provide results that are comparable to larger, more expensive spectrophotometers.
Cell density meters can be easy to clean and sterilize, portable, and light weight. Additional features to consider include:
- Usually battery operated but can come with an external power supply for portability.
- Heat wavelength measuring range at 600nm.
- Storage results vary but range from 99 to a 1000 readings.
- Displays results in a graphic LCD or an LED display.
- Results are given in absorbance units (OD).