ScholarLens Back to search
2000•PubMedRequires access

[Determination of trace amounts of copper by flow injection vapor generation AAS].

Heng Zhou, Xu Shicai, Zhen Yu Fang

Open publisher page 6 citations

Abstract

A method for the determination of copper by FI-VGAAS (flow injection vapor generation atomic absorption spectrometry) was developed. The sample solution containing trace amounts of o-phenanthroline and 0.1 mol.L-1 HNO3 was carried out by carrier of 0.1 mol.L-1 HNO3 and merged with sodium tetrahydroborate solution to produce the vapor species of copper, which got separation in gas-liquid separator and was detected in a quartz tube atomizer at 1000 degrees C. A detection limit of 1.8 micrograms.L-1 (3 sigma) of copper was obtained with a sampling frequency of 144/h using a sample volume of 500 microL. The precision RSD was 2.6% (n = 11) at the 100 micrograms.L-1 copper. The method was applied to the analysis of human hair and rice standard reference samples, the results were in good agreement with certified values.

About this research paper

What this paper is about

A method for the determination of copper by FI-VGAAS (flow injection vapor generation atomic absorption spectrometry) was developed. The sample solution containing trace amounts of o-phenanthroline and 0.1 mol.L-1 HNO3 was carried out by carrier of 0.1 mol.L-1 HNO3 and merged with sodium tetrahydroborate solution to produce the vapor species of copper, which got separation in gas-liquid separator and was detected in a quartz tube atomizer at 1000 degrees C. A detection limit of 1.8 micrograms.L-1 (3 sigma) of copper was obtained with a sampling frequency of 144/h using a sample volume of 500 microL. The precision RSD was 2.6% (n = 11) at the 100 micrograms.L-1 copper. The method was applied to the analysis of human hair and rice standard reference samples, the results were in good agreement with certified values.

Why it matters

OpenAlex reports 6 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

A method for the determination of copper by FI-VGAAS (flow injection vapor generation atomic absorption spectrometry) was developed. The sample solution containing trace amounts of o-phenanthroline and 0.1 mol.L-1 HNO3 was carried out by carrier of 0.1 mol.L-1 HNO3 and merged with sodium tetrahydroborate solution to produce the vapor species of copper, which got separation in gas-liquid separator and was detected in a quartz tube atomizer at 1000 degrees C. A detection limit of 1.8 micrograms.L-1 (3 sigma) of copper was obtained with a sampling frequency of 144/h using a sample volume of 500 microL. The precision RSD was 2.6% (n = 11) at the 100 micrograms.L-1 copper. The method was applied to the analysis of human hair and rice standard reference samples, the results were in good agreement with certified values.

Key concepts: Copper, Detection limit, Chemistry, Analytical Chemistry (journal), Atomic absorption spectroscopy, Trace Amounts, Separator (oil production), Certified reference materials

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
[Determination of trace amounts of copper by flow injection vapor generation AAS]. — Research Paper | ScholarLens