| ID (ISN) del documento | 38655 |
| Número CIS |
82-1915 |
| ISSN - Título de la serie |
0003-2654 - Analyst |
| Año |
1981 |
| Número de serie |
|
| Autor(es) |
Warwick C.J., Bagon D.A., Purnell C.J. |
| Título |
Application of electrochemical detection to the measurement of free monomeric aromatic and aliphatic isocyanates in air by high-performance liquid chromatography |
| Información bibliográfica |
June 1981, Vol.106, p.676-685. Illus. 19 ref. |
| Resumen |
1-(2-Methoxyphenyl)piperazine is used as the electrogenic reagent in the determination. It forms electrochemically active derivatives with all of the isocyanates of occupational hygiene interest that are readily oxidised at carbon electrodes. These derivatives are strongly absorbing in the ultraviolet region, enabling a combination of electrochemical and ultraviolet detectors to be employed to provide additional qualitative information if required. Comparison is made between the electrochemical detection method and high-performance liquid chromatography - ultraviolet detection methods for isocyanate analysis. The electrochemical detection method was significantly more sensitive than UV detection methods for the determination of phenyl isocyanate, toluene diisocyanate, hexamethylene diisocyanate and (4,4'-diisocyanatodiphenyl)methane in air. |
| Descriptores (primarios) |
cromatografía de alta resolución; dosificación en el aire; substancias tóxicas; isocianatos |
| Descriptores (secundarios) |
espectrofotometría en el ultravioleta; diisocianato de difenilmetano; descripción del procedimiento; diisocianato de hexametileno; diisocianato de toluileno-2,4; isocianato de fenilo |
| Tipo de documento |
D - Artículos periódicos |
| Tema(s) |
Sustancias tóxicas y peligrosas
|
| Broad subject area(s) |
|
| Navegación por categoria(s) |
Isocyanates
Cyano compounds
|
