Effect of washing procedures on trace-element content of hair.
Clin Chem
; 23(9): 1771-2, 1977 Sep.
Article
in En
| MEDLINE
| ID: mdl-890921
ABSTRACT
A pooled sample of hair was divided and portions prepared for analysis by three washing procedures, to evaluate the effect of washing procedure on the subsequent trace-element (Zn, Cu, Mg) content. The methods selected were a detergent wash, a hexane-ethanol wash, and an acetone-ether-detergent wash. For all elements, there was a significant difference among the results after these wash procedures. Magnesium content of hair was most affected by washing, containing less than half of the magnesium of the unwashed hair. The detergent wash removed the most zinc and magnesium; the acetone-ether-detergent wash removed the most copper. Our results indicate that the trace-element analysis of hair is sensitive to the preparation technique and therefore is an unreliable source of information about trace-element status.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Specimen Handling
/
Trace Elements
/
Hair
Limits:
Humans
/
Male
Language:
En
Journal:
Clin Chem
Journal subject:
QUIMICA CLINICA
Year:
1977
Type:
Article