Skip to main content

False-positive result when a diphenylcarbazide spot test is used on trivalent chromium-passivated zinc surfaces.

Author
Abstract
:

A colorimetric 1,5-diphenylcarbazide (DPC)-based spot test can be used to identify hexavalent chromium on various metallic and leather surfaces. DPC testing on trivalent chromium-passivated zinc surfaces has unexpectedly given positive results in some cases, apparently indicating the presence of hexavalent chromium; however, the presence of hexavalent chromium has never been confirmed with more sensitive and accurate test methods.

Year of Publication
:
2018
Journal
:
Contact dermatitis
Date Published
:
2018
ISSN Number
:
0105-1873
URL
:
http://dx.doi.org/10.1111/cod.12955
DOI
:
10.1111/cod.12955
Short Title
:
Contact Dermatitis
Download citation