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Hexavalent chromium and total chromium removal from polychlorinated vinyl chloride (PVC) polymers
Hexavalent chromium and total chromium removal from polychlorinated vinyl chloride (PVC) polymers
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机译:从多氯乙烯(PVC)聚合物中去除六价铬和总铬
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摘要
A non-destructive process for removing chromium from polyvinyl chloride filters is disclosed. The process involves immersing the polyvinyl chloride filters in a concentrated hydrogen peroxide solution at elevated temperatures, followed by rinsing with deionized water. Removing the background concentration of chromium from the filters allows for more accurate measurements of the amount of hexavalent and total chromium present in workplace environments.
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