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A McFarland densitometer measures the turbidity of a bacterial suspension and reports it in McFarland units, so labs can set inoculum density before testing. Readings span 0.00 to 15.00 McF. Resolution is 0.01 McF. Light at 565 nm passes through the sample, and a reading takes about 1 second. Calibration covers 0.00 to 6.00 McF, and the minimum sample is 2 mL. Readings above 6.00 McF fall outside the calibrated span. Microbiology and clinical labs use the meter to prepare suspensions for antimicrobial susceptibility testing. Pharmaceutical, food and water labs use the meter for routine microbial work. The meter standardizes concentration and does not count bacteria or detect pathogens.
$ 4050 / Each of 1
Frequently Asked Questions
1 What is a Mcfarland Densitometer?
A Mcfarland Densitometer is an apparatus designed to measure the turbidity of microbial suspensions to standardize cell concentration.
2 How does a Mcfarland Densitometer work?
It works by measuring light absorbance through a suspension to assess its turbidity against McFarland standards.
3 Can Mcfarland Densitometer be used in antimicrobial susceptibility testing?
It ensures that the bacterial suspension has the correct density before applying it to antibiotic discs or testing panels, thereby providing reliable results.
4 Can Mcfarland Densitometer be used in clinical diagnostics?
It is commonly used in clinical labs to prepare standardized bacterial inocula for accurate diagnostic testing.
5 Can Mcfarland Densitometer be used in pharmaceutical quality control?
It is used to maintain consistent microbial loads in testing environments and product evaluations.
6 How is Mcfarland Densitometer used in food microbiology?
It is used to prepare consistent bacterial cultures for contamination testing and shelf-life studies.
7 What role does Mcfarland Densitometer play in water testing?
It is used to standardize microbial concentrations when testing water samples for pathogen presence.
8 Can Mcfarland Densitometer support vaccine development?
It ensures accurate bacterial counts in vaccine formulation and potency testing, which is crucial for dose consistency.
9 How is Mcfarland Densitometer used in biotechnology processes?
It is used to standardize microbial loads in fermentation, cloning, and bioprocessing experiments.
10 How does Mcfarland Densitometer help in clinical trial preparation?
It is used to prepare consistent microbial doses used in testing investigational therapies.