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Rapid Spectrographic Determination of Beryllium in Biological Samples
Author(s) -
Schoenfeld Irena
Publication year - 1968
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1002/ijch.196800057
Subject(s) - chemistry , beryllium , detection limit , biological materials , analytical chemistry (journal) , coefficient of variation , excitation , chromatography , biological system , organic chemistry , biology , electrical engineering , engineering
A direct spectrochemical method for the determination of beryllium in biological samples is described. Charred samples are mixed with dilute HCl and used directly for excitation by the rotating‐disc spark technique. Chemical separation of Be is eliminated, simplifying the estimation and increasing the speed at which the analysis can be performed. The limit of detection is 1 ppb of Be in urine samples, 20 ppb in lung and other tissues. The coefficient of variation ranges from 15% to 25%. This precision is sufficient when the determination is intended for rapid diagnostic purposes.