A rapid method employing impregnated charcoal and atomic absorption spectrophotometry for the determination of mercury.

Details

• Personal Author:
  Kupel, Richard E. ; Moffitt AE
• Description:
  Description of a quantitative procedure for the determination of submicrogram quantities of mercury (7439976) in atmospheric, biological and aquatic samples. In the analysis of biological and aquatic samples, organically bound mercury is oxidized with nitric- acid (7697372), and all mercury present is reduced to the elemental state with stannous-chloride. The liberated mercury is driven by an air current through impregnated charcoal for approximately 2 minutes. A glass tube packed with impregnated charcoal is used to take integrated atmospheric samples. All charcoal samples are analyzed directly for mercury with an atomic absorption sampling boat assembly. Measurement of the recorder peak height is used to determine the quantity of mercury present. The total analysis time is less than 5 minutes for aqueous samples, and the minimum detectable quantity of mercury is 0.02 mg. After collection of mercury, the charcoal samples may be stored for later analysis. [Description provided by NIOSH]
• Subjects:
  Occupational Health Safety
• Keywords:
  Absorption-spectrophotometry Analytical-methods CIS NIOSH-Author Sampling
• ISSN:
  0002-8894
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  Ohio ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  32
• Issue:
  9
• NIOSHTIC Number:
  nn:00013276
• Citation:
  Am Ind Hyg Assoc J 1971 Sep; 32(9):614-620
• Contact Point Address:
  A. E. Moffitt, Jr., U.S. Department of Health, Education, and Welfare, National Institute for Occupational Safety and Health, 1014 Broadway, Cincinnati, Ohio 45202
• CAS Registry Number:
  Mercury (CAS RN 7439-97-6) ; Nitric acid (CAS RN 7697-37-2)
• Federal Fiscal Year:
  1971
• Peer Reviewed:
  True
• Source Full Name:
  American Industrial Hygiene Association Journal
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:6d23615736eabfa38d6762ec7195d3b8c4c34692236e14a4024eb92ae51ec0c2fe798e30cd4d0e6723189a6b843b521f2050529fe5ffcff823dc0e3abec143b7
• Download URL:
  https://stacks.cdc.gov/view/cdc/183790/cdc_183790_DS1.pdf
• File Type:
  [PDF - 524.10 KB ]