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Pretreatment of whole blood using hydrogen peroxide and UV irradiation. Design of the advanced oxidation process
Stefanie A Bragg1, Kristie C Armstrong, Zi-Ling Xue
1Department of Chemistry, The University of Tennessee, Knoxville, TN 37996, USA.
Abstract:
A new process to pretreat blood samples has been developed. This process combines the Advanced Oxidation Process (AOP) treatment (using H(2)O(2) and UV irradiation) with acid deactivation of the enzyme catalase in blood. A four-cell reactor has been designed and built in house. The effect of pH on the AOP process has been investigated. The kinetics of the pretreatment process shows that at high C(H(2)O(2),t=0), the reaction is zeroth order with respect to C(H(2)O(2)) and first order with respect to C(blood). The rate limiting process is photon flux from the UV lamp. Degradation of whole blood has been compared with that of pure hemoglobin samples. The AOP pretreatment of the blood samples has led to the subsequent determination of chromium and zinc concentrations in the samples using electrochemical methods.
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