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Determination of hexamethylene-based isocyanates in spray-painting operations. Part 1. Evaluation of a polyurethane foam sponge sampler.

Authors
Rudzinski-WE; Yin-J; Norman-SH; Glaska-DA
Source
Analyst 1998 Oct; 123(10):2079-2083
NIOSHTIC No.
20030582
Abstract
A polyurethane foam (PUF) sponge was mounted in a cassette sampler and evaluated as a sorbent for the collection of hexamethylene diisocyanate (HDI) monomer and HDI-based oligomers. Recovery studies indicated 112 +/- 34% average recovery of HDI monomer and 92 +/- 9% and 97 +/- 25% average recovery of HDI-based oligomers when using impregnated PUF sponges. The PUF sponge was also evaluated during actual spray-painting operations. In a series of side-by-side sampling events, an impinger filled with 1-(2-methoxyphenyl)piperazine (MOP) in toluene was compared directly with a cassette sampler containing a PUF sponge impregnated with MOP or 1-(9-anthracenylmethyl)piperazine (MAP) in dimethyl sulfoxide (DMSO). For the analysis of HDI-based oligomer, there is no significant difference (p < 0.05, n = 7) in the air concentration when sampling with either the PUF sponge cassette or the impinger. The results are significant because they indicate that a PUF sponge, which is more convenient than an impinger, may be used for the collection of HDI-based oligomer generated during spray-painting operations.
Keywords
Isocyanates; Spray-painting; Paint-spraying; Samplers; Sampling; Sampling-methods; Painting; Paints; Cyanates; Pollutants; Airborne-particles; Exposure-assessment
CODEN
ANALAO
CAS No.
822-06-0
Publication Date
19981001
Document Type
Journal Article
Funding Amount
88710
Funding Type
Grant
Fiscal Year
1999
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-R01-OH-003295
Issue of Publication
10
ISSN
0003-2654
Priority Area
Research Tools and Approaches: Exposure Assessment Methods
Source Name
Analyst
State
TX
Performing Organization
Southwest Texas State University, Department of Chemistry, San Marcos, Texas
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