| ID (ISN) del documento | 58767 |
| Número CIS |
92-1626 |
| ISSN - Título de la serie |
0002-8894 - American Industrial Hygiene Association Journal |
| Año |
1992 |
| Número de serie |
|
| Autor(es) |
Franzblau A., Levine S.P., Burgess L.A., Qu Q.S., Schreck R.M., D'Arcy J.B. |
| Título |
The use of a transportable Fourier transform infrared (FTIR) spectrometer for the direct measurement of solvents in breath and ambient air - I. Methanol |
| Información bibliográfica |
Apr. 1992, Vol.53, No.4, p.221-227. Illus. 30 ref. |
| Resumen |
A transportable Fourier transform infrared (FTIR) spectrometer has been tested for analysis of methanol vapour in alveolar and ambient air. The instrument has been found to be accurate and precise for both uses. The regions of the infrared spectrum of alveolar air samples which were used for methanol and CO2 quantification are in the vicinity of 950-1,100cm-1 and 2,000-2,100cm-1, respectively. The results of a standard addition experiment show a correlation coefficient of 0.97-0.99 for methanol in alveolar or ambient air at the 30-200ppm concentration level. For CO2 analysis in 23 alveolar air samples at the 6.1-7.6% concentration level, the mean difference in results between a non-dispersive infrared (NDIR) spectrometer and the FTIR was -0.092% with a standard deviation of 0.273% (p>0.1). Methanol concentrations in alveolar air paralleled simultaneous measurements of methanol concentration in blood. Overall, these preliminary results suggest that FTIR spectroscopy is a practical and efficient approach for simultaneous biological and area monitoring of human exposure to organic solvents. |
| Descriptores (primarios) |
espectroscopia por transformado de fourier; espectrofotometría en el infrarrojo; metanol; dosificación en el aire; valoración de la exposición; toma de muestras y análisis; disolventes orgánicos |
| Descriptores (secundarios) |
óxido de carbono; dióxido de carbono; descripción del procedimiento; dosificación en la sangre; aparatos de exposición experimental |
| Tipo de documento |
D - Artículos periódicos |
| País / Estado o Provincia | China; Estados Unidos |
| Tema(s) |
Sustancias tóxicas y peligrosas
|
| Broad subject area(s) |
Riesgos químicos
|
| Navegación por categoria(s) |
Exposure evaluation
Alcohols
|
