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Price of the test:
Please enquire our customer service at

Acceptable Matrices:
Our accreditation covers: Infant and young children’s foods, milk and milk products. This includes formulated foods, milk and milk products.

Unacceptable Matrices:
Any product not listed above. Contact if you are unsure if your product is covered.

Limit of Detection:
Any concentration greater than 0.1 µg/ 100 g is detectable.

Sample Size Requirements:
15 grams of sample is needed minimum, 30 is recommended.

Reportable Units:

Turn Around Time:
6 Business Days

Is Urgent Testing Available?

Method Reference:
GB 5413.14-2010

Method Description:
A B12-dependent bacterium, Lactobacillus leichmannii is inoculated into lactobacillus broth. Vitamin B12 is the limiting factor for growth, and the rate of growth is proportional to the amount of B12 available. Therefore, concentration of B12 in samples can be determined quantitatively by comparing appropriate sample extracts with known standard concentrations. Quantification is measured by spectrophotometer analysis.

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