Wavelength-scale stationary-wave integrated Fourier-transform spectrometry
نویسندگان
چکیده
منابع مشابه
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...
متن کاملBasics: Fourier Transform Spectrometry
A FT spectrometer is an interferometer. Its historical and most widely known configuration is the Michelson interferometer, shown on Fig. 1. A beam-splitter is used for dividing the light to be spectrally analyzed into two beams. After they have been reflected on two distinct mirrors, the two beams are recombined by the same beam-splitter and sent to a detector. One of the mirrors is fixed, whi...
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Rapid scanning serves to mitigate the problems of scintillation and dynamic range for Fourier spectrometry, as well as to simplify the measurement procedures. Rapid scanning means scanning at a rate such that the interferometric fringes act as their own chopper. It also means scanning at a rate such that the fringe frequencies exceed the scintillation frequencies, thereby avoiding confusion bet...
متن کاملFourier transform infrared (FT-IR) spectrometry.
Plants have a large capacity to transfer water and associated contaminants from soil to atmosphere. We measured the transfer rate for a range of constituents of gasoline that vary in volatility, solubility, and octanol/water partition coefficient. We tested benzene, toluene, ethyl benzene, meta-xylene, 1,2,4-trimethyl benzene, cyclohexene, n-pentane, ethyl ether, n-propyl ether, and t-butyl met...
متن کاملSimultaneous 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...
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ژورنال
عنوان ژورنال: Nature Photonics
سال: 2007
ISSN: 1749-4885,1749-4893
DOI: 10.1038/nphoton.2007.138