| Autor: |
Rudzinski, Walter, Norman, Sam, Dahlquist, Bruce, Greebon, Kurt, Richardson, Andy, Locke, K., Thomas, Tom |
| Zdroj: |
American Industrial Hygiene Association Journal; October 1996, Vol. 57 Issue: 10 p914-917, 4p |
| Abstrakt: |
A new reagent, 1-(9-anthracenylmethyl)piperazine (MAP), was used for the derivatization of airborne 1,6-hexamethylene diisocyanate (HDI) and polyisocyanates generated during spray-painting operations. The new reagent, which offers enhanced sensitivity and uniformity of response to both the monomeric and oligomeric forms of HDI, was compared directly with 1-(2-methoxyphenyl)piperazine (MOP), the currently employed derivatizing reagent used in the National Institute for Occupational Safety and Health Method 5521. Both the validity of the side-by-side sampling protocol and the efficacy of two derivatizing reagents were evaluated in field studies. The analytical results indicate that there is no significant difference at the 95% confidence level in the concentration of polyisocyanate in the aerosol as determined by two impingers containing MAP and a third containing MOP when these are positioned in a side-by-side-by-side arrangement. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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