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2006•Journal of Analytical ScienceRequires access

Determination of Lead in Water Samples by Graphite Furnace Atomic Absorption Spectrometry after Solvent Extraction

Lu Aimin, Xinna Chai, Hongyu Gao, Shenghong Hu, Shuai Qin

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Abstract

A method to determine trace lead in water samples with graphite furnace atomic Absorption spectrometry(GFAAS) was developed by using 5-Br-PADAP as complex and 1-octanol as extractant.The optimum experimental conditions were investigated.The linear range of the method was 0.5 to 5.0 μg/L,the detection limit was 0.067 μg/L with the relative standard deviation(RSD) of 3.9 %(n=7),and the recovery was between 89% to 97%.The concentration factor was about 20.This method has been used to determine the contents of Pb in water samples with satisfactory results,and the results agreed with those provided by ICP-MS.

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What this paper is about

A method to determine trace lead in water samples with graphite furnace atomic Absorption spectrometry(GFAAS) was developed by using 5-Br-PADAP as complex and 1-octanol as extractant.The optimum experimental conditions were investigated.The linear range of the method was 0.5 to 5.0 μg/L,the detection limit was 0.067 μg/L with the relative standard deviation(RSD) of 3.9 %(n=7),and the recovery was between 89% to 97%.The concentration factor was about 20.This method has been used to determine the contents of Pb in water samples with satisfactory results,and the results agreed with those provided by ICP-MS.

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Available abstract

A method to determine trace lead in water samples with graphite furnace atomic Absorption spectrometry(GFAAS) was developed by using 5-Br-PADAP as complex and 1-octanol as extractant.The optimum experimental conditions were investigated.The linear range of the method was 0.5 to 5.0 μg/L,the detection limit was 0.067 μg/L with the relative standard deviation(RSD) of 3.9 %(n=7),and the recovery was between 89% to 97%.The concentration factor was about 20.This method has been used to determine the contents of Pb in water samples with satisfactory results,and the results agreed with those provided by ICP-MS.

Key concepts: Chemistry, Graphite furnace atomic absorption, Detection limit, Mass spectrometry, Extraction (chemistry), Relative standard deviation, Atomic absorption spectroscopy, Chromatography

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