Eur. Phys. J. Appl. Phys.
Volume 69, Number 3, March 2015
|Number of page(s)||5|
|Section||Imaging, Microscopy and Spectroscopy|
|Published online||12 March 2015|
A research on measuring and analyzing the optical properties of fluorescent whitening agent in soybean milk
College of Science, Nanjing University of Aeronautics and Astronautics, 210016
Nanjing, P.R. China
2 College of Science, Hohai University, 210016 Nanjing, P.R. China
a e-mail: firstname.lastname@example.org
Revised: 29 January 2015
Accepted: 2 February 2015
Published online: 12 March 2015
A research on measuring and analyzing the fluorescence spectra of fluorescent whitening agent in soybean milk was explained in this paper. At the temperature of 30 °C, linear relationship was found good between fluorescence intensity and concentration of fluorescent whitening agent in the range of 0.015–0.25 mg/mL when the emission wavelength was 437 nm and excitation wavelength was 347 nm. Modeling analysis showed that the correlation coefficient was 0.996, the relative standard deviation (RSD) ranged from 0.45% to 0.73% and the recovery of standard addition ranged from 96.80% to 102.67%, which testified the validity of the method. This research provided a new way for detecting the unedible fluorescent whitening agent content in food production.
© EDP Sciences, 2015
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