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RAPID AND GROSS SCREENING FOR Pb3O4 ADULTERANT IN GROUND SWEET RED PAPRIKA BY MEANS OF PHOTOACOUSTIC SPECTROSCOPY |
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| Authors: | O Döka D. Bicanic L Szöllösy |
| Affiliation: | 1. Department of Physics , Pannon Agricultural University , P O Box 90 H-9200 Mosonmagyaróvár, Hungary;2. Laser Photoacoustic Laboratory Department of Agricultural Engineering and Physics , Wageningen Agricultural University Bomenweg 4 , 6703 HD Wageningen The, Netherlands |
| Abstract: | Abstract The potential of photoacoustic (PA) spectroscopy as a candidate method for rapid detection of gross amounts of red lead (Pb3O4) adulterant in a ground sweet red paprika was demonstrated. Linear relationship between the magnitude of PA signal at 545 nm and the concentration of red lead was found within 10% (w/w) to 50% (w/w). The limit of detection of a present PA spectrometer is 2% w/w Pb3O4. |
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