Linked Life Data

6702605

Source:http://linkedlifedata.com/resource/pubmed/id/6702605

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1984-4-24
pubmed:abstractText
The concentrations of airborne isocyanates were measured during spray painting with two-component polyurethane paint. The isocyanate component - hexamethylene-diisocyanate (HDI) and its prepolymer of the biuret type - were determined by high performance liquid chromatography after derivatization to stable urea derivatives with N-4-nitrobenzyl-N-n-propylamine. Samples were collected on reagent impregnated glassfiber filters, and the derivatives were eluted with the chromatographic eluent. An impregnation technique is reported; it facilitates the chromatographic separation and the subsequent quantitative determination. Recovery studies from filters were performed in the range of 0.05 to 30 micrograms for the HDI monomer, and 0.5 to 100 micrograms for the HDI oligomer on the same filter. Average recoveries of the monomer and the oligomer were 97 +/- 2% (standard deviation) and 92 +/- 4%, respectively. The concentrations of the isocyanate components, measured during spray painting, were very high. For example, the level of the monomer frequently exceeded the hygienic limit value of 0.07 mg/m, set by the National Board of Labour Protection in Finland. As the concentrations of the HDI oligomer were at least one order of magnitude higher, appreciable exposure to isocyanate occurred if the respiratory protection was inadequate. The filter sampling technique made it possible to measure concentrations inside respirators.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0002-8894
pubmed:author
pubmed:issnType
Print
pubmed:volume
45
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
117-21
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1984
pubmed:articleTitle
Airborne isocyanates in polyurethane spray painting: determination and respirator efficiency.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't