Determination of Ni, Co and Cu in Laterite-Nickel Ores by Inductively Coupled Plasma-Atomic Emission Spectrometry

WANG Guo-xin; XU Yu-yu; WANG Hui; LIU Feng; WU Cheng; HU Qing

2011 Vol. 30, No. 5

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WANG Guo-xin, XU Yu-yu, WANG Hui, LIU Feng, WU Cheng, HU Qing. Determination of Ni, Co and Cu in Laterite-Nickel Ores by Inductively Coupled Plasma-Atomic Emission Spectrometry[J]. Rock and Mineral Analysis, 2011, 30(5): 572-575.

Citation:

Determination of Ni, Co and Cu in Laterite-Nickel Ores by Inductively Coupled Plasma-Atomic Emission Spectrometry

1.
Changshu Entry-Exit Inspection and Quarantine Bureau, Changshu 215500, China
2.
Changshu Entry-Exit Inspection and Quarantine Bureau, Changshu 215500, China
3.
Changshu Entry-Exit Inspection and Quarantine Bureau, Changshu 215500, China
4.
Changshu Entry-Exit Inspection and Quarantine Bureau, Changshu 215500, China
5.
Changshu Entry-Exit Inspection and Quarantine Bureau, Changshu 215500, China
6.
Changshu Entry-Exit Inspection and Quarantine Bureau, Changshu 215500, China

Received Date: 16 November 2010

Revised Date: 16 February 2011

Publish Date: 28 October 2011

Abstract

Abstract

A method for the determination of Ni, Co and Cu contents in laterite is presented in this paper. Laterite samples were fused with a mixed flux of Na2CO3-Na2B4O7, then the analytes were extracted by HCl acid. The sample solution was measured by inductively coupled plasma-atomic emission spectrometry (ICP-AES). The internal standard method was used to avoid matrix interference based on choosing Y 371.030 nm as the internal calibration line for Cu (324.754 nm) and Y 224.306 nm for Ni (231.604 nm) and Co (228.616 nm). The detection limits for Ni, Co and Cu were 0.5 μg/g, 1.0 μg/g and 1.0 μg/g, respectively. The relative standard deviations (RSD) of the test result were 1.2%-2.0% (n=7), and the recoveries ranged from 95% to 103.6%, which met the requirements of analysis for laterite.
- inductively /
- coupled /
- plasma-atomic /
- emission /
- spectrometry /
- internal