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Development and application of Fourier transform infrared spectroscopy for detection of milk adulteration in practice
Author(s) -
Hansen Per Waaben,
Holroyd Stephen E
Publication year - 2019
Publication title -
international journal of dairy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.061
H-Index - 53
eISSN - 1471-0307
pISSN - 1364-727X
DOI - 10.1111/1471-0307.12592
Subject(s) - fourier transform infrared spectroscopy , fourier transform , infrared spectroscopy , detection limit , spectroscopy , analytical chemistry (journal) , infrared , fourier transform spectroscopy , dairy industry , mid infrared , materials science , chemistry , chromatography , mathematics , optics , food science , physics , optoelectronics , organic chemistry , mathematical analysis , quantum mechanics , wavelength
Fourier transform infrared ( FT ‐ IR ) spectroscopy is widely applied for routine milk analysis. More recently, it has been used to detect a range of specific milk adulterants. Here, we show that the simultaneous use of targeted and untargeted models applied to FT ‐ IR spectra for detecting potential milk adulterants across relevant concentration ranges is an effective strategy. Using an appropriate validation strategy, limits of detection, sensitivity and specificity are determined for specific adulterants giving a useful guide to how these models would work in a practical situation. Finally, theoretical limits of detection of a range of potential adulterants are listed.