• Spectroscopy and Spectral Analysis
  • Vol. 34, Issue 5, 1412 (2014)
HUANG Zhen-nong1、*, SUN Yi1, RUAN Xiao-lin1, WU Bang-hua1, ZHANG Ai-hua1, HUANG Jun-yi1, HUANG Yan-ling2, and HUANG Han-lin1
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
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    DOI: 10.3964/j.issn.1000-0593(2014)05-1412-04 Cite this Article
    HUANG Zhen-nong, SUN Yi, RUAN Xiao-lin, WU Bang-hua, ZHANG Ai-hua, HUANG Jun-yi, HUANG Yan-ling, HUANG Han-lin. Study on the Solid Sorbent Tube for Capturing Mercury in the Workplace Air and Determination by Cold Vapor Atomic Absorption Spectrometry[J]. Spectroscopy and Spectral Analysis, 2014, 34(5): 1412 Copy Citation Text show less

    Abstract

    A new KMnO4-MnO2 solid multisorbent tube for capturing mercury in workplace air was developed. Experimental conditions for solid multisorbent tube, efficiency of sampling, desorption efficiency and stability were studied. Mercury and its compounds in air were captured by solid KMnO4-MnO2 sorbent filled tube and desorbed with 0.90 mol·L-1 sulfuric acid solution. Mercury and its compounds were quantitatively analyzed according to the method of GBZ/T 160.14—2004 cold vapor atomic absorption spectrometry. The linear range of the proposed method was 0.000 2~0.015 0 mg·L-1 with r=0.999 1, the average efficiency of sampling was 99.9%~100.0% in the concentration range of 0.001~2.820 mg·m-3, and the breakthrough capacity was more than 505.4 μg for 300 mg KMnO4-MnO2 solid multisorbent, the average recovery rate was 96.4%~103.8%, the intra-day and inter-day precision was 3.0%~3.3% and 3.5%~5.2% respectively, the limit of detection was 0.0013 mg·m-3 (7.5 L of air ) and 0.000 6 mg·m-3(96 L of air), after sampling, and the solid multisorbent tube could be kept at least 30 d at room temperature without significant loss. The present method was simple and suitable for capturing mercury and its compounds in the workplace air and ambient air. The solid multisorbent tube was useful for personal sampling and time weighted average sampling.
    HUANG Zhen-nong, SUN Yi, RUAN Xiao-lin, WU Bang-hua, ZHANG Ai-hua, HUANG Jun-yi, HUANG Yan-ling, HUANG Han-lin. Study on the Solid Sorbent Tube for Capturing Mercury in the Workplace Air and Determination by Cold Vapor Atomic Absorption Spectrometry[J]. Spectroscopy and Spectral Analysis, 2014, 34(5): 1412
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