| ID (ISN) del documento | 37679 |
| Número CIS |
82-734 |
| ISSN - Título de la serie |
0021-9673 - Journal of Chromatography |
| Año |
1981 |
| Número de serie |
|
| Autor(es) |
Goldberg P.A., Walker R.F., Ellwood P.A., Hardy H.L. |
| Título |
Determination of trace atmospheric isocyanate concentrations by reversed-phase high-performance liquid chromatography using 1-(2-pyridyl)piperazine reagent |
| Información bibliográfica |
1981, Vol.212, p.93-104. Illus. 38 ref. |
| Resumen |
Aliphatic and aromatic isocyanates are determined in air by drawing a test atmosphere through a 2x10-4M solution of 1-(2-pyridyl)piperazine in toluene at a rate of 1l/min for 5-20min. The sample solution, in which the isocyanates form urea derivatives, is evaporated to dryness and an acetonitrile solutin of the residue is chromatographed using a column packed with ODS-Hypersil 5µm silica gel and eluted with an acetonitrile-0.1M ammonium acetae mobile phase at 2.0ml/minflow rate. The lower limit of detection for MDI and TDI is 0.5µg/m3 for a 10l air sample. |
| Descriptores (primarios) |
cromatografía de alta resolución; dosificación en el aire; isocianatos |
| Descriptores (secundarios) |
diisocianato de metileno; isocianato de fenilo; diisocianato de hexametileno; descripción del procedimiento; diisocianato de naftileno; diisocianato de toluileno-2,6; diisocianato de toluileno-2,4; diisocianato de isoforono |
| Tipo de documento |
D - Artículos periódicos |
| Tema(s) |
Sustancias tóxicas y peligrosas
|
| Broad subject area(s) |
|
| Navegación por categoria(s) |
Isocyanates
Cyano compounds
|
