Back to your search result


This Standard Reference Material (SRM®) is intended primarily for use in evaluating the accuracy of procedures for the determination of the vitamin B6 metabolite pyridoxal 5'-phosphate (PLP) in human serum. It is also intended for use in validating working or secondary reference materials. PLP is the major circulating form of vitamin B6 and the most common direct measure of this vitamin in serum or plasma. A unit of NIST-3950 consists of two stoppered vials of frozen human serum, one vial each at two different concentration levels. Each vial contains 1.0 mL of human serum. Certified values /// Sample value(s) - please ask for current certificate.



Certificate of Analysis (specimen)

Reference Material CoA specimen: for the current lot, please contact your customer service representative at

Product data sheet

View all available product details e.g. description, analytes/parameters, CAS Number, concentrations/values, sales unit/product format, method, source, transport information

National Institute of Standards and Technology

NIST provides over 1300 Standard Reference Materials® as well as articles and practice guides describing the development, analysis and use of SRMs.

NIST Standard Reference Materials are used by analytical laboratories in industry, academia and government in order to facilitate commerce and trade and to advance research and development. The SRMs are produced by the engineering laboratory, the material measurement laboratory, and the physical measurement laboratory at NIST. They are available for chemical composition, physical properties, and engineering materials.