Real-time spectral evaluation for gas chromatography–Fourier transform infrared spectrometry

Real-time spectral evaluation for gas chromatography–Fourier transform infrared spectrometry

Fourier transform infrared spectrometry.

The theory and instrumentation for Fourier transform infrared spectrometry are discussed. These instruments measure infrared spectra of the same quality as spectra measured on grating spectrometers in about one thousandth of the time. Their sensitivity advantage for spectra measured in equal times is between a factor of 10 and 100. Commercial spectrometers are now available from nine vendors in...

Gas chromatography with Fourier transform infrared and mass spectral detection

For a number of years, the combination of gas chromatography with infrared and mass spectral detection has been of interest. Numerous applications have been reported and discussed in previous reviews. The present brief review covers recent developments in this area since 1997. It is clear that advances in computer technology combined with those in instrumentation make it only a matter of time u...

Gas imaging by infrared gas-correlation spectrometry.

We describe a new method for visualization of gas flows based on infrared absorption and gas-correlation techniques. This result is a gray-scale or false color-coded image showing the distribution of a specific gas in the area studied. A sequence of images showing the workplace test setup with a turbulent flowing gas is presented.

Simultaneous Determination of Hydrochlorothiazide and Enalapril Maleate in Pharmaceutical Formulations Using Fourier Transform Infrared Spectrometry

A new Fourier Transform-Infra Red (FT-IR) spectrometric method was developed for assaying hydrochlorothiazide (HCT) and enalapril maleate (ENM) in binary solid pharmaceutical formulations. Multivariate Partial Least Squares (PLS) method was used for calibration of derivative spectral data. Acetonitrile was used as solvent due to its spectral tran...