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2007•Chinese Journal of Spectroscopy LaboratoryRequires access

Determination of Cadmium,Copper,Lead,Zinc in Slippery Mushroom by FAAS

Xiaohong Zhang

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Abstract

The total amounts of Cd,Cu,Pb,Zn were determined by FAAS.The samples were digested with a mixture of HNO3-HClO4(15∶2,volume ratio).The working parameters,the digestive and extracted conditions were optimized. Under the optimum conditions,the correlation coefficient of four elements were 0.9955—0.9999,the relative standard deviations were 0.6%—2.1%,the recoveries were from 94.2%—104.0%,and the precision were 2.2%—4.3%.The results were satisfactory in the practical samples and suitable for the day-to-day analysis and detection.

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What this paper is about

The total amounts of Cd,Cu,Pb,Zn were determined by FAAS.The samples were digested with a mixture of HNO3-HClO4(15∶2,volume ratio).The working parameters,the digestive and extracted conditions were optimized. Under the optimum conditions,the correlation coefficient of four elements were 0.9955—0.9999,the relative standard deviations were 0.6%—2.1%,the recoveries were from 94.2%—104.0%,and the precision were 2.2%—4.3%.The results were satisfactory in the practical samples and suitable for the day-to-day analysis and detection.

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Available abstract

The total amounts of Cd,Cu,Pb,Zn were determined by FAAS.The samples were digested with a mixture of HNO3-HClO4(15∶2,volume ratio).The working parameters,the digestive and extracted conditions were optimized. Under the optimum conditions,the correlation coefficient of four elements were 0.9955—0.9999,the relative standard deviations were 0.6%—2.1%,the recoveries were from 94.2%—104.0%,and the precision were 2.2%—4.3%.The results were satisfactory in the practical samples and suitable for the day-to-day analysis and detection.

Key concepts: Cadmium, Chemistry, Copper, Zinc, Relative standard deviation, Mushroom, Detection limit, Volume (thermodynamics)

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