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Unknown peaks in GC‐MS analyses of Guthrie cards blood samples might be the result of sample contamination by the black markings of the card
Author(s) -
Brune T. G.,
Lambrecht A. Ch.,
Koch H. G.
Publication year - 2002
Publication title -
journal of inherited metabolic disease
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.462
H-Index - 102
eISSN - 1573-2665
pISSN - 0141-8955
DOI - 10.1023/a:1021223922760
Subject(s) - spotting , azelaic acid , sample (material) , contamination , dried blood , chromatography , chemistry , biology , computer science , artificial intelligence , biochemistry , ecology
Azelaic acid, sometimes found during analysis of Guthrie card blood samples, may be derived from the printing ink used to mark the spotting area.