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?

It measures turbidity by passing a light beam through the sample and detecting the amount of light scattered or absorbed by the particles in suspension. This measurement is then converted into McFarland units.

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

While primarily designed for bacterial suspensions, it can be adapted for other applications requiring turbidity measurement, such as yeast cell counting or general particulate matter assessment, provided the sample falls within its measurement range.

What kind of maintenance does a densitometer require?

Maintenance typically involves regular cleaning of the sample chamber and optical path, and periodic calibration using certified McFarland standards to ensure accuracy. No complex servicing is usually required.

Are calibration standards included with a used unit?

Calibration standards are consumables and may or may not be included with a used unit. Buyers should confirm this with the seller, as new standards may be required for accurate operation.

Used Grant Bio McFarland DEN-1 Densitometer - Densitometers, фото 1

Used Grant Bio McFarland DEN-1 Densitometer - Densitometers, фото 2

Used Grant Bio McFarland DEN-1 Densitometer - Densitometers, фото 3

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Used Grant Bio McFarland DEN-1 Densitometer - Densitometers, фото 7

Used Grant Bio McFarland DEN-1 Densitometer - Densitometers, фото 8

Used Grant Bio McFarland DEN-1 Densitometer - Densitometers

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Grant Bio McFarland DEN-1 Densitometer

Name: Grant Bio McFarland DEN-1 Densitometer
Brand: Grant Bio McFarland
SKU: 281051.SR10B 281052.SR10B
Availability: InStock

Цена: Цену уточняйте у продавца

Grant Bio McFarland DEN-1 densitometer for rapid, accurate turbidity measurement to standardize bacterial suspensions in laboratories

Cambridgeshire, United Kingdom

5 773 км от вас

Номер модели

DEN-1

Складской номер

281051.SR10B 281052.SR10B

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Типичные сведения для этой категории оборудования. Всегда уточняйте детали у продавца.

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.

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.

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.

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