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2010•Chinese Journal of Spectroscopy LaboratoryRequires access

Determination of Five Heavy Metal Elements in Drinking Water by ICP-AES

Chen Feng

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Abstract

Arsenic,cadmium,chromium,mercury and lead in drinking water were determined directly by inductively coupled plasma-atomic emission spectrometry.In order to decrease detection limit of spectral analysis,different volume of organic additives were added in drinking water sample to improve signal-to-background ratios of spectrum.Signal-to-background ratios of arsenic,cadmium,chromium,mercury and lead were increased 177.4%,45.2%,38.9%,354.7%,and 83.8% after adding 6% n-propanol,respectively.The quantitative analysis results showed that the relative standard deviations (RSD) are 4.5%—8.0%,and recovery rates are 96.7%—107.1%.

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What this paper is about

Arsenic,cadmium,chromium,mercury and lead in drinking water were determined directly by inductively coupled plasma-atomic emission spectrometry.In order to decrease detection limit of spectral analysis,different volume of organic additives were added in drinking water sample to improve signal-to-background ratios of spectrum.Signal-to-background ratios of arsenic,cadmium,chromium,mercury and lead were increased 177.4%,45.2%,38.9%,354.7%,and 83.8% after adding 6% n-propanol,respectively.The quantitative analysis results showed that the relative standard deviations (RSD) are 4.5%—8.0%,and recovery rates are 96.7%—107.1%.

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Available abstract

Arsenic,cadmium,chromium,mercury and lead in drinking water were determined directly by inductively coupled plasma-atomic emission spectrometry.In order to decrease detection limit of spectral analysis,different volume of organic additives were added in drinking water sample to improve signal-to-background ratios of spectrum.Signal-to-background ratios of arsenic,cadmium,chromium,mercury and lead were increased 177.4%,45.2%,38.9%,354.7%,and 83.8% after adding 6% n-propanol,respectively.The quantitative analysis results showed that the relative standard deviations (RSD) are 4.5%—8.0%,and recovery rates are 96.7%—107.1%.

Key concepts: Cadmium, Mercury (programming language), Arsenic, Chromium, Chemistry, Detection limit, Inductively coupled plasma, Inductively coupled plasma atomic emission spectroscopy

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