| ID (ISN) del documento | 45983 |
| Número CIS |
86-711 |
| ISSN - Título de la serie |
0002-8894 - American Industrial Hygiene Association Journal |
| Año |
1986 |
| Número de serie |
|
| Autor(es) |
Hakes D.C., Johnson G.D., Marhevka J.S. |
| Título |
An improved high pressure liquid chromatographic method for the determination of isocyanates using "nitro reagent" |
| Información bibliográfica |
Mar. 1986, Vol.47, No.3, p.181-184. Illus. 12 ref. |
| Resumen |
The chromatographic problems associated with the excess derivatising reagent, N-4-nitrobenzyl-N-n-propyamine in the commonly used HPLC method has been eliminated. An aqueous extraction removed the excess reagent without affecting the concentration of the urea derivatives. The combination of the extraction with the use of a fast LC column allowed separation and quantitation of 4,4'-diphenylmethane diisocyanate, 2,4- and 2,6-toluenediisocyanate and hexamethylenediisocyanate within 4min under isocratic conditions. Detection limits ranged from 2 to 5ng injected. |
| Descriptores (primarios) |
cromatografía en fase liquida a alta presión; isocianatos |
| Descriptores (secundarios) |
diisocianato de difenilmetano; diisocianato de toluileno-2,4; diisocianato de toluileno-2,6; diisocianato de hexametileno |
| Tipo de documento |
D - Artículos periódicos |
| Tema(s) |
Sustancias tóxicas y peligrosas
|
| Broad subject area(s) |
|
| Navegación por categoria(s) |
Isocyanates
Cyano compounds
|
