Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10552813 | Journal of Food Composition and Analysis | 2011 | 5 Pages |
Abstract
An ultrasensitive chemiluminescence (CL) method for determination of melamine at picogram level was reported in a flow system. It was found that melamine can accelerate the electrons transferring rate of excited 3-aminophthalate with notable enhanced CL intensity of luminol-hydrogen peroxide reaction. The increased CL intensity was proportional to the concentration of melamine in the range from 2.5 to 250 pg mLâ1 (R2 = 0.9953), with a detection limit of 0.9 pg mLâ1 (3Ï) and the relative standard deviations lower than 5.0%. The proposed method was successfully applied to determine the melamine in liquid milk, yogurt, human urine and serum samples with the recovery of 98-105%, 93-105%, 98-105%, 97-109%, respectively.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Jingjing Zhang, Min Wu, Donghua Chen, Zhenghua Song,