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MiniDen - Densitometer for cell density determination

The small densitometer is the ideal additional instrument in the research and routine laboratory for cell density and turbidity measurements. The concentration determinations of bacterial and yeast suspensions as well as measurements of coloured solutions absorbing green light are based on the measurement of the optical density at a fixed wavelength of 565 nm. These values are represented in digital form as Mc Farland units. The unit is pre-calibrated, but can also be calibrated using common standards (available on request).

Standard deviations:
0,5 McF = 0,5 ± 0,1
3,0 McF = 3,0 ± 0,1
6,0 McF = 6,0 ± 0,2
7,5 McF = 7,5 ± 0,2

Disposable counting chamber C-Chip

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This disposable counting chamber is a single-use product with two counting chambers or 4 counting chambers (M-NZ-4CH) made of plastic with quartz properties, designed for normalised and standardised counting.
The handling is simple: 10 µl of the cell suspension are applied to the chip and counted. The coordinate system corresponds exactly to the "Neubauer Improved" counting chamber. It consists of nine squares of 1 x 1 mm each with 0.1 mm depth. Each square has a total volume of 0.1 mm³ or 10-⁴ cm³. The central square is divided into 25 small squares with triple lines and the 4 corner squares are divided into 16 small squares.

EVE Cell Counting Slide

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These disposable counting chambers are designed for use with the EVE, Countess I and Countess II automatic cell counters.
These disposable optical plastic (quartz grade) counting chambers eliminate the need for washing and reduce the risk of contamination. They also ensure reproducibility and reliability of the results.
• Sample volume: 10 µl
• Colouring method : Trypan blue
• Dimensions: 75 x 25 x 1.8 mm
• Compatible with EVETM automatic cell counter, Countess and Countess II

MiniDen with battery operation - densitometer for cell density determination

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The small densitometer is the ideal additional instrument in the research and routine laboratory for cell density and turbidity measurements. The concentration determinations of bacterial and yeast suspensions as well as measurements of coloured solutions absorbing green light are based on the measurement of the optical density at a fixed wavelength of 565 nm. These values are represented in digital form as Mc Farland units. The unit is pre-calibrated, but can also be calibrated using common standards (available on request).

• Determination of cell densities from 0.0 - 6.0 McFarland units (0 to 18 x 10⁸ cells/ml)
• Extended determination up to 15.0 McFarland units with larger standard deviation
• Wavelength of 565 nm (± 15 nm) per light emitting diode
• Accuracy: ± 3%
• Measurement duration: 1 sec.
• Sample volume: min. 2 ml
• LCD display
• Measurement in tubes with ext. ø 18 mm or 16 mm (with adapter)
• Dimensions: 165 x 115 x 75 mm, weight: 0.7 kg
• Power supply: ext. Power supply unit or 3 x AA batteries (not incl.)