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Determination of Urinary Manganese with Graphite-furnace Atomic Absorption Spectrophotometry

Zhang Yao-zong

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Abstract

Objective To establish a method for determination of manganese (Mn) in urine by GFAAS. Methods The sample was diluted directly with a modified matrix containing 0.2mg/L PdCl2-1% Triton X-100 solution and measured with graphite furnace atomic absorption spectrophotometry. Results The sensitivity of the method was b=0.1456A/(μg/L) with a linear regression equation of A=0.1456C+0.1512 (r=0.9996) and a detection limit CL=0.22 μg/L. The relative deviation was 4.2 ~ 7.3% in sample analysis and recovery rate between 94.8~106.4%. Conclusion The method is simple and may be recommended as a reference method for the determination of Mn in urine.

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What this paper is about

Objective To establish a method for determination of manganese (Mn) in urine by GFAAS. Methods The sample was diluted directly with a modified matrix containing 0.2mg/L PdCl2-1% Triton X-100 solution and measured with graphite furnace atomic absorption spectrophotometry. Results The sensitivity of the method was b=0.1456A/(μg/L) with a linear regression equation of A=0.1456C+0.1512 (r=0.9996) and a detection limit CL=0.22 μg/L. The relative deviation was 4.2 ~ 7.3% in sample analysis and recovery rate between 94.8~106.4%. Conclusion The method is simple and may be recommended as a reference method for the determination of Mn in urine.

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Available abstract

Objective To establish a method for determination of manganese (Mn) in urine by GFAAS. Methods The sample was diluted directly with a modified matrix containing 0.2mg/L PdCl2-1% Triton X-100 solution and measured with graphite furnace atomic absorption spectrophotometry. Results The sensitivity of the method was b=0.1456A/(μg/L) with a linear regression equation of A=0.1456C+0.1512 (r=0.9996) and a detection limit CL=0.22 μg/L. The relative deviation was 4.2 ~ 7.3% in sample analysis and recovery rate between 94.8~106.4%. Conclusion The method is simple and may be recommended as a reference method for the determination of Mn in urine.

Key concepts: Graphite furnace atomic absorption, Manganese, Detection limit, Spectrophotometry, Atomic absorption spectroscopy, Chemistry, Graphite, Analytical Chemistry (journal)

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