Particle penetration through sampling prefilters illustrates the analysis error in NIOSH-type procedures for nickel carbonyl.
Sampling and analysis of aerosols generated by plasma are cutting of stainless steel have qualitatively demonstrated particle penetration of sampler prefilters utilized in the National Institute for Occupational Safety and Health (NIOSH)-type and impinger sampler analytical procedures for measuring the presence of nickel carbonyl. These results illustrate that only a small mass of nickel-containing particles need penetrate the prefilters to exaggerate greatly the inferred concentration of nickel carbonyl. Strong evidence was obtained via the chemiluminescence method that nickel carbonyl concentrations in fact were very low (less than 1 ppb).
Baston
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Physical Sciences Incorporated, Sun Valley, ID 83353-2120.
Karuhn
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Wiseman
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Levin
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D000336:Aerosols / Q000032:analysis*; D000397:Air Pollution / Q000032:analysis*; D005374:Filtration / Q000295:instrumentation; D009314:National Institute for Occupational Safety and Health, U.S.; D009942:Organometallic Compounds; D010316:Particle Size; D014481:United States
D000336:Aerosols; D009942:Organometallic Compounds; C005303:nickel carbonyl