Determination of cyanuric acid or trichloroisocyanuric acid in air

Details

• Personal Author:
  Blade, Leo M. ; Tucker, Samuel P.
• Description:
  A procedure was developed for the estimation of cyanuric-acid (108805) (CA) or trichloroisocyanuric-acid (87901) (TICA) in air samples. The method involved air sampling with a 37 millimeter polyvinyl-chloride (PVC) membrane filter, recovery using a phosphate buffer, and measurement using high performance liquid chromatography with ultraviolet detection. Air sampling was conducted at a rate of 1.6 liters per minute for 6.6 hours at a manufacturing facility at which TICA was being produced from CA by a chlorination process. Air samples were collected in a part of the facility designated for CA purification so that the presence of TICA in this area was considered negligible. Results showed that the average recoveries from PVC filters were 0.98 to 1.00 after fortification of filters with 12 to 412 micrograms (microg) of CA. The limit of detection (LOD) and lower limit of quantitation (LOQ) of CA were 0.3 to 0.75 microgram (microg) and 1.0 to 2.5microg per sample, respectively. Average recoveries of TICA were 0.83 and 0.98, after fortification of glass surfaces with 12 to 424microg TICA. The LOQ for TICA was about 6microg per sample, and its LOD in solution was 0.54microg. Results from analyses of blind spiked samples of both CA and TICA corroborated the validity of the field samples. TICA underwent deterioration on standing. The authors conclude that the method is suitable for the measurement of TICA in view of its convenience for routine analysis. TICA in air samples should be measured within 1 week after collection. [Description provided by NIOSH]
• Subjects:
  Chemistry Chemistry, Analytic Chlorine Compounds Chromatography Disinfectants Environmental Monitoring Occupational Health Safety Water Purification
• Keywords:
  Air-samples Analytical-chemistry Analytical-methods Chlorine-compounds Chromatographic-analysis NIOSH-Author Water-purification
• ISSN:
  0003-2719
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  Ohio ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DPSE - Division of Physical Sciences and Engineering
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  25
• Issue:
  12
• NIOSHTIC Number:
  nn:00211658
• Citation:
  Anal Lett 1992 Dec; 25(12):2265-2277
• CAS Registry Number:
  Cyanuric acid (CAS RN 108-80-5) ; Trichloroisocyanuric acid (CAS RN 87-90-1)
• Federal Fiscal Year:
  1993
• Peer Reviewed:
  True
• Source Full Name:
  Analytical Letters
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:2170a56d8acf4799230b7cb4f2aedbfe45356f93e7aa32b5de675a71db02ecf173778267d11bff280d8a8d8c299b7778949250d3f5336753c7170176bf5d9560
• Download URL:
  https://stacks.cdc.gov/view/cdc/204464/cdc_204464_DS1.pdf
• File Type:
  [PDF - 542.73 KB ]