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Anodic stripping voltammetric determination of total copper in blood plasma

✍ Scribed by Jorge E. Tahán; Romer A. Romero

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
475 KB
Volume
273
Category
Article
ISSN
0003-2670

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✦ Synopsis

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Blood plasma specunens from renal patients and healthy control subjects were mmerahzed by nucrowave lrradlatlon for subsequent detennmatlon of total copper by dtierentlal-pulse anodlc stnppmg voltammetry (DPASV) Graphite furnace atomic absorption spectrometry (GFAAS) was used for accuracy evaluation purposes An excellent correlation between the two techmques was obtained [DPASV] = 0 977[GFAAS] -0 822, r = 0 998, n = 30, p < 0 001

The detection hmlt of the electrochenucal method was 0 2 pg Cu I-' Mean concentrations ( f 1 S D ) of 1261 f 126 and 760 f 33 pg Cu I-' were found for azotemtc mdlvlduals and controls, respectively The proposed DPASV-based method represents an important and mexpenswe analytlcal altematlve for the chmcal chemistry laboratory Keywor& Stnppmg voltammetIy, Blood, Copper, Plasma

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