Comparison of sampling and analytical methods for the collection and determination of methylene diphenyl diisocyanate (MDI) from oriented strand board (OSB) sources
- ICI Polyurethanes Group, West Deptford, NJ (United States)
The ICI Polyurethanes Group conducted a multi-variant study of sampling and analytical methods for the collection and determination of MDI from 3 different OSB sources. The study evaluated 3 different sampling trains and derivatizing reagents at 2 probe temperatures as follows: (1) a 4-nitro-N-propylbenzylamine (Nitro reagent) filter alone at ambient probe temperature; (2) a 1-(2-Methoxyphenyl) piperazine (12MP) filter followed by two impingers containing the same reagent in Toluene at ambient probe temperature; (3) a dual 12MP impinger train followed by a 12MP treated filter also at ambient probe temperatures; (4) a dual 12MP impinger train followed by a 12MP treated filter also at a probe temperature of 250 F; (5) a dual 1-(2-pyridyl)piperazine (12PP) impinger train also at a probe temperature of 250 F. The analytical portion of the study compared results using Normal and Reversed Phased HPLC determination of the Nitro reagent samples and Reversed Phase HPLC determination of the 12MP and 12PP samples. Additional LC-MS studies were conducted to confirm and identify the cause of a positive bias in the Normal Phase Nitro reagent analytical results.
- OSTI ID:
- 197378
- Report Number(s):
- CONF-9405167-; TRN: IM9612%%152
- Resource Relation:
- Conference: Measurement of toxic and related air pollutants, Durham, NC (United States), 3-6 May 1994; Other Information: PBD: 1994; Related Information: Is Part Of Measurement of toxic and related air pollutants. Proceedings of the 1994 U.S. EPA/A and WMA international symposium; PB: 1075 p.
- Country of Publication:
- United States
- Language:
- English
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