Determination of Trace Level Copper(II) in Malaysian Vegetables by Cyclic Voltammetry

Illyas Md Isa; Nur Indah Wardani; Norhayati Hashim; Sazelli A. Ghani

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Determination of Trace Level Copper(II) in Malaysian Vegetables by Cyclic Voltammetry

机译：循环伏安法测定马来西亚蔬菜中的痕量铜（II）

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The sequential voltammetric measurement using ZLH-CPPA modified CNT paste electrode for thedetermination of Cu(II) in Malaysian vegetables is proposed. The digestion of vegetable samples was-3 carried out using a concentrated HNO3 (69 %) and 4 10 M of CH3COONa was employed as-1 supporting electrolyte at pH 2.5 and scan rate of 500 mV s . The Cu(II) concentrations were found in-1 the range of 0 04 6 88 g g . The levels of Cu(II) found were compared with the results obtained fromother food studies in the world.

机译：提出了使用ZLH-CPPA修饰的CNT糊电极进行伏安法连续测定马来西亚蔬菜中的Cu（II）的方法。使用浓HNO3（69％）对蔬菜样品进行3次消化，并使用4 10 M CH3COONa作为pH值为2.5且扫描速度为500 mV s的1种支持电解质。发现Cu（II）的浓度为1，范围为0 04 6 88 g g。将发现的Cu（II）的水平与世界上其他食品研究的结果进行了比较。

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《International Journal of Electrochemical Science》 |2015年第1期|共6页
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Illyas Md Isa; Nur Indah Wardani; Norhayati Hashim; Sazelli A. Ghani;
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Determination of Trace Level Copper(II) in Malaysian Vegetables by Cyclic Voltammetry

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