阳极溶出伏安法直接测定酒中微量铜
DIRECT DETERMINATION OF MICRO AMOUNTS OF COPPER IN WINE BY ANODIC STRIPPING VOLTAMMETRY
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摘要: 本文研究了在NH4Ac-NH4Cl-NH3·H2O体系中,阳极溶出伏安法直接测定微量铜。灵敏度达3×10-9M,回收率在70ppb溶液中为96—98%。方法具有灵敏、准确,样品预处理简便等优点。可直接用于酒品类中微量铜或痕量铜的测定。Abstract: A method for direct determination 61 copper in Wine by anodic stripping voltommetry in the presence of NH4Ac-NH4Cl-NH3·H2O has been developed. It has a sensibility of 3 �10-9with a recovery of 66-98% for a 70ppb level. The method is simple, rapid, sensitive and accurate. It can be used directly to determine trace copper in wine.
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