ScholarLens Back to search
2013•Chinese Journal of Health Laboratory TechnologyRequires access

Determination of chromium,arsenic,cadmium,lead and mercury in health foods

Chen Bi

Open publisher page 0 citations

Abstract

Objective A method was established for simultaneous determination of chromium,arsenic,cadmium,lead and mercury in health foods by inductively coupled plasma mass spectrometry( ICP-MS). Methods Samples were digested in nitric acid and hydrogen peroxide by microwave digestion. The operating conditions were optimized for the measurement of above 5elements.72Ge,115In and209Bi were used as internal standard elements to compensate signal drift. Results The correlation coefficient of the five elements in health foods was above 0. 9994. The detection limits were in the range of 0. 001 mg / kg ~0. 010 mg / kg,and the recoveries of the method were in the range of 88. 9% ~ 120. 0%. And the relative standard deviation( RSD,n =6) of the method was less than 7. 47%. Conclusion The method is suitable for the determination of trace Cr,As,Cd,Hg and Pb in health foods samples for its high sensitivity and good stability.

About this research paper

What this paper is about

Objective A method was established for simultaneous determination of chromium,arsenic,cadmium,lead and mercury in health foods by inductively coupled plasma mass spectrometry( ICP-MS). Methods Samples were digested in nitric acid and hydrogen peroxide by microwave digestion. The operating conditions were optimized for the measurement of above 5elements.72Ge,115In and209Bi were used as internal standard elements to compensate signal drift. Results The correlation coefficient of the five elements in health foods was above 0. 9994. The detection limits were in the range of 0. 001 mg / kg ~0. 010 mg / kg,and the recoveries of the method were in the range of 88. 9% ~ 120. 0%. And the relative standard deviation( RSD,n =6) of the method was less than 7. 47%. Conclusion The method is suitable for the determination of trace Cr,As,Cd,Hg and Pb in health foods samples for its high sensitivity and good stability.

Why it matters

A significance statement is not available in the OpenAlex record.

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

Objective A method was established for simultaneous determination of chromium,arsenic,cadmium,lead and mercury in health foods by inductively coupled plasma mass spectrometry( ICP-MS). Methods Samples were digested in nitric acid and hydrogen peroxide by microwave digestion. The operating conditions were optimized for the measurement of above 5elements.72Ge,115In and209Bi were used as internal standard elements to compensate signal drift. Results The correlation coefficient of the five elements in health foods was above 0. 9994. The detection limits were in the range of 0. 001 mg / kg ~0. 010 mg / kg,and the recoveries of the method were in the range of 88. 9% ~ 120. 0%. And the relative standard deviation( RSD,n =6) of the method was less than 7. 47%. Conclusion The method is suitable for the determination of trace Cr,As,Cd,Hg and Pb in health foods samples for its high sensitivity and good stability.

Key concepts: Cadmium, Arsenic, Chromium, Mercury (programming language), Chemistry, Nitric acid, Inductively coupled plasma mass spectrometry, Detection limit

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Determination of chromium,arsenic,cadmium,lead and mercury in health foods — Research Paper | ScholarLens