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The Capital Region of Denmark - a part of Copenhagen University Hospital
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Quantification of biotin in plasma samples by column switching liquid chromatography - tandem mass spectrometry

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Biotin (or Vitamin B7) is a vitamin where deficiency can be caused by inadequate intake. Biotin deficiency is rare, as most people get enough biotin from diet, since many foods contain biotin. In addition to biotin from food, intestinal bacteria can synthesize biotin, which can then be absorbed by the body. Supplementation with biotin has been advocated, mainly due to proposed beneficial effects on skin, nail and hair growth. There is no evidence that high biotin intakes are toxic, but a high intake may interfere with diagnostic assays that use biotin-streptavidin technology. These tests are commonly used to measure plasma concentrations of a wide range of hormones. Erroneous results may lead to misdiagnosis of various endocrine disorders. Supplementation with high-dose biotin has been used experimental for the treatment of diseases (e.g. multiple sclerosis) and high doses are used to obtain effect on nail and hair growth. On this background a demand for tests to determine if there is a risk of obtaining false test results when using biotin-streptavidin based tests have appeared. In this paper we present a method based on column switching liquid chromatography tandem mass spectrometry for the quantification of biotin in plasma and serum and explore the effects of biotin on an immunoassay based on biotin strept(avidin) chemistry.

Original languageEnglish
JournalScandinavian Journal of Clinical and Laboratory Investigation
Volume81
Issue number2
Pages (from-to)127-136
Number of pages10
ISSN0036-5513
DOIs
Publication statusPublished - Apr 2021

    Research areas

  • Biotin, streptavidin, tandem mass spectrometry, thyrotropin, triiodothyronine

ID: 62270487