Verification and confirmation of ICP-MS method for determination of As, Zn and Cr in water. Issue 2 (May 2020)

• Record Type: Journal Article
• Authors: Sun, Sha; Zhang, Yabo
• Is Part Of: IOP conference series. Volume 514:Issue 2(2020)
• Publication Date: 2020-05
• Subjects: Earth sciences -- Periodicals; Environmental sciences -- Congresses; Environmental sciences -- Periodicals; 550.5
• DOI: 10.1088/1755-1315/514/2/022067
• Languages: English
• ISSNs: 1755-1307

Abstract

Abstract: According to the standard method of "Determination of 65 Elements in Water by Inductively Coupled Plasma Mass Spectrometry" (HJ 700-2014), the verification and confirmation of ability of detecting As, Zn and Cr in water were conducted in laboratory. Each element has a good linear relationship in the concentration range of 0 to 500 μg/L, and the correlation coefficients are all greater than 0.999. The laboratory detection limit of As, Zn and Cr was 0.06 μg/L, 0.29 μg/L and 0.03 μg/L, respectively. Which meet the requirements of corresponding detection limit in standard method (As detection limit: 0.12μg/L, Zn detection limit: 0.67 μg/L, Cr detection limit: 0.11 μg/L); In the verification of experimental precision and accuracy, the relative deviation is 2.59%∼10.1%, the recovery rate is 94.7%∼109%, which are all meets the standard requirements of relative deviation should less than 20%, the recovery rate should be 80%∼120%. The results confirmed that our laboratory possess the ability using ICP-MS to detect As, Zn and Cr in water.