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Determination of trace arsenic in natural mineral water for drinking by CCT-ICP-MS

Min Guangquan

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Abstract

By ICP-MS with the Collision Cell Technology(CCT),trace arsenic in natural mineral water for drinking was determined.The internal standard was added online to correct matrix effects and interface effects,and the Collision Cell Technology(CCT) was applied through the apparatus to eliminate the interference from the element mass number.The calibration curve's correlation coefficient was greater than 0.9995,the detection limit was 0.033 μg·L-1,the recovery ranged from 95.5% to 108.0%,and the relative standard deviation was less than 10%(n = 12).The method was featured by high sensitivity and less interference,with the results being satisfactory.

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What this paper is about

By ICP-MS with the Collision Cell Technology(CCT),trace arsenic in natural mineral water for drinking was determined.The internal standard was added online to correct matrix effects and interface effects,and the Collision Cell Technology(CCT) was applied through the apparatus to eliminate the interference from the element mass number.The calibration curve's correlation coefficient was greater than 0.9995,the detection limit was 0.033 μg·L-1,the recovery ranged from 95.5% to 108.0%,and the relative standard deviation was less than 10%(n = 12).The method was featured by high sensitivity and less interference,with the results being satisfactory.

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Available abstract

By ICP-MS with the Collision Cell Technology(CCT),trace arsenic in natural mineral water for drinking was determined.The internal standard was added online to correct matrix effects and interface effects,and the Collision Cell Technology(CCT) was applied through the apparatus to eliminate the interference from the element mass number.The calibration curve's correlation coefficient was greater than 0.9995,the detection limit was 0.033 μg·L-1,the recovery ranged from 95.5% to 108.0%,and the relative standard deviation was less than 10%(n = 12).The method was featured by high sensitivity and less interference,with the results being satisfactory.

Key concepts: Arsenic, Detection limit, Natural mineral, Inductively coupled plasma mass spectrometry, Chemistry, Correlation coefficient, Calibration curve, Matrix (chemical analysis)

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