Grant Bio McFarland DEN-1 Densitometer

• Standardising bacterial suspensions for microbiological assays and antibiotic susceptibility testing.
• Measuring cell concentration in biotechnology and fermentation processes.
• Quality control in vaccine production and pharmaceutical research.
• Environmental monitoring for water quality and microbial contamination analysis.
• Research and development in life sciences for consistent experimental conditions.

Measurement range

Typically 0.00 to 15.00 McFarland units.

Measurement accuracy

Commonly ±0.1 McFarland for this class of equipment.

Sample volume

Units of this type typically accommodate standard test tubes (e.g., 18 mm diameter).

Display

Often features a digital LCD for clear readings.

Calibration

Typically user-calibratable with factory-supplied standards.

Power supply

Commonly operates on a low-voltage DC power adapter (e.g., 12V), suitable for laboratory environments.

Footprint

Compact benchtop design, typically requiring minimal laboratory space.

• What is a McFarland densitometer used for?

  A McFarland densitometer is used to measure the turbidity of liquid samples, primarily to standardise bacterial or cell suspensions to a specific concentration, ensuring reproducible results in laboratory procedures.

• How does a densitometer measure turbidity?

• Can this unit be used for applications other than bacterial suspensions?

• What kind of maintenance does a densitometer require?

• Are calibration standards included with a used unit?

Densitometers are regarded as dependable instruments for measuring optical density in analytical work. Buyers typically value their precision and reliability across laboratory settings. When purchasing used models, condition of the light source and detector alignment merit close inspection, as recalibration may be necessary. Industry sentiment recognises these instruments for consistent performance and straightforward operation. Build quality generally remains sound through extended use, making them sensible acquisitions for facilities requiring accurate density measurements without significant capital expenditure.

Panoramica generale per questo tipo di macchina