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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 34, Number 11
BKCSDE 34(11)
November 20, 2013

Title	Spectrometric Determination of Rhodamine B in Chili Powder After Molecularly Imprinted Solid Phase Extraction
Author	Xiuying Liu, Xuan Zhang, Qian Zhou, Bing Bai, Shujuan Ji*
Keywords	Rhodamine B, Chili powder, Molecularly imprinted polymers, Solid-phase extraction, Multiwalled carbon nanotubes
Abstract	This paper reports a method using molecularly imprinted polymers that are grafted onto the surface of carboxylmodified multi-walled carbon nanotubes as the solid-phase extraction adsorbents to detect Rhodamine B in chili powder samples. The polymers were characterized by FTIR and TGA. Various parameters which probably influence efficiency of extraction were optimized. The analytical parameters such as precision, accuracy and linear working range were also determined in optimal experimental conditions. And the proposed method was applied to analysis of Rhodamine B in chili powder samples. The limits of detection and quantification were 2.57 and 8.56 μg/g, respectively. The recoveries for analytes were higher than 95% and relative standard deviation values were found to be in the range of 0.83-4.15%. This method was successfully applied for the determination of Rhodamine B.
Page	3381 - 3386
Full Text	PDF

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