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Preliminary Study on a Vapor Generation Technique for Nickel Without Using Carbon Monoxide by Inductively Coupled Plasma Atomic Emission Spectrometry by Xu-ming Guo; Benli Huang; Zhenhua Sun; Rongqin Ke; Qiuquan Wang; Zhen-bin Gong is a Chemistry article available to read on EtoBox.

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The authors found that volatile nickel species could be generated by reaction in an aqueous solution with sodium or potassium borohydride under appropriate conditions at room temperature without using carbon monoxide. After Ž . vapor generation and gas᎐liquid separation, the volatile species was carried into an inductively coupled plasma ICP by argon gas, and the quantity of nickel determined by atomic emission spectrometry. The intensities of the Ni lines were strongly affected by the acidity of samples, the flow rate of argon carrier gas and the length of the transfer tube between the gas᎐liquid separator and ICP. A detection limit of 0.5 ngrml and a precision of -5% was obtained under the following conditions: 0.12 M HCl acidified sample solution; 3% potassium borohydride solution with 0.5% potassium hydroxide added; sample uptake rate 2.8 mlrmin; argon carrier gas flow 500 mlrmin; and the length of the transfer tube kept as short as possible.

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Author

Xu-ming Guo; Benli Huang; Zhenhua Sun; Rongqin Ke; Qiuquan Wang; Zhen-bin Gong

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0584-8547)

Published

2000

Language

EN

Field

Chemistry (Physical Sciences)