Grazing-angle fiber-optic fourier transform infrared reflection-absorption spectroscopy for the in situ detection and quantification of two active pharmaceutical ingredients on glass
Analytical Chemistry, ISSN: 0003-2700, Vol: 79, Issue: 3, Page: 1231-1236
2007
- 24Citations
- 8Captures
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Metrics Details
- Citations24
- Citation Indexes24
- 24
- CrossRef13
- Captures8
- Readers8
Article Description
Fourier transform infrared reflection-absorption spectroscopy has been used with a fiber-optic grazing-angle reflectance probe as a rapid, in situ method for trace surface analysis of acetaminophen and aspirin at loadings of ∼0-2 μg cm on glass. Partial least-squares multivariate regression permits the loadings to be quantified, simultaneously, with root-mean-squared errors of prediction of RMSEP ≈ 0.1 μg cm for both compounds. The detection limits are estimated to be L ≈ 0.2 μg cm . © 2007 American Chemical Society.
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