Determination of methanol and methyl tert-butyl ether in gasoline by infrared spectroscopy using the CIRCLE® cell and multivariate calibration
Abstract:
The feasibility of pbkp_redicting concentrations of methanol and methyl terfbutyl ether (MTBE) in gasolines from the mid-infrared absorption spectra was investigated. The C-O bond stretching band region was related to these oxygenated compounds' levels with the aid of multivariate statistics. The sample spectra were taken with the use of a circular internal reflectance (CIRCLE®) cell. With the use of partial least-squares (PLS) regression a model with 18 samples was built and used to pbkp_redict a set of 10 gasolines with good agreement. Two additional samples prepared with other brands of gasoline were analyzed with the same model and no matrix effects were found. © 1993 Society for Applied Spectroscopy.
Año de publicación:
1993
Keywords:
- Mid-infrared
- Oxygenated determination
- PLS
- Multivariate analysis
Fuente:
scopusTipo de documento:
Article
Estado:
Acceso restringido
Áreas de conocimiento:
- Química analítica
- Química ambiental
Áreas temáticas:
- Química analítica
