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Scand J Urol Nephrol. 1997 Feb;31(1):67-71.

Long-term stability of albumin, protein HC, immunoglobulin G, kappa- and lambda-chain-immunoreactivity, orosomucoid and alpha 1-antitrypsin in urine stored at -20 degrees C.

Author information

1
Department of Nephrology, Lund University Hospital, Sweden.

Abstract

The stability of albumin, protein HC, immunoglobulin G, kappa- and lambda-chain immunoreactivity, orosomucoid and alpha 1-antitrypsin in urine stored at -20 degrees C for up to 24 months was investigated. Significant decreases of the median concentration values for protein HC, IgG and alpha 1-antitrypsin were observed for native urine. Addition to urine of a preservative solution containing benzamidinium chloride, EDTA, tris(hydroxymethyl)-aminomethane and azide prevented the decreases of the concentration values for protein HC and IgG but not for alpha 1-antitrypsin. The median concentration values for albumin, orosomucoid and kappa- and lambda-chain immunoreactivity did not change significantly upon storage of native urine, nor for urine with the preservative solution.

PMID:
9060087
DOI:
10.3109/00365599709070305
[Indexed for MEDLINE]

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