2002•Hunan Nonferrous MetalsRequires access

Determination of Trace Cu by Cu-CAS-CTMAB Sepectrophotometry

Run Ju-mei

Abstract

Green compound of Cu with CAS in the presence of CTMAB has been studied in this article. The molar ratio of copper to CAS and CTMAB is 1∶2∶1,The max absorption is at 618 nm.The apparent molar absorptive is 8.6×104 L·mol-1·cm-1.Beer′s law is obeyed in the range of 3.0～29 μg/25 mL. The method has been applied to the determination of copper in aluminum alloys and the result is satisfactory.

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Key concepts: Copper, Chemistry, Molar ratio, Absorption (acoustics), TRACE (psycholinguistics), Aluminium, Analytical Chemistry (journal), Molar