Interlaboratory comparison of serum vitamin B12 assay.

Abstract:

:The results have been compared of microbiological and radioisotope dilution (RID) assay of serum vitamin B12 by participants in national interlaboratory trials in Britain. There was wide variation between the individual participants, especially marked in the L. leichmannii microbiological assay and in the RID methods, whereas excellent correlation, reproducibility, and recovery were obtained in reference laboratories by microbiological assay with both E. gracilis and L. leichmannii. In general, RID gave higher results than microbiological assay. The need for suitable reference sera is emphasised.

journal_name

J Clin Pathol

authors

Mollin DL,Hoffbrand AV,Ward PG,Lewis SM

doi

10.1136/jcp.33.3.243

subject

Has Abstract

pub_date

1980-03-01 00:00:00

pages

243-8

issue

3

eissn

0021-9746

issn

1472-4146

journal_volume

33

pub_type

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