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Analytical problems encountered with NIOSH method 5521 for total iscyanates

 
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<title>Analytical problems encountered with NIOSH method 5521 for total iscyanates</title>
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<title>American Industrial Hygiene Association journal</title>
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<namePart>Key-Schwartz, Rosa J.</namePart>
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<abstract displayLabel="Summary">A recent analysis for total isocyanates in air using National Institute for Occupational Safety and Health Method 5521 presented difficulties in the identification of an oligomeric isocyanate species. Two problems were encountered during the analysis. Two problems were encountered during the analysis. A false negative response in the high performance liquid chromatography chromatogram was encountered in a majority of the field samples</abstract>
<note type="statement of responsibility">Rosa J. Key-Schwartz</note>
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<topic>Métodos de análisis</topic>
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<text>Vol. 56, nº 5, May 1995 ; p. 474-479</text>
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