PMID- 28911564 OWN - NLM STAT- MEDLINE DCOM- 20171218 LR - 20220809 IS - 2224-6614 (Electronic) IS - 1021-9498 (Print) VI - 24 IP - 3 DP - 2016 Jul TI - Trace residue analysis of dicyandiamide, cyromazine, and melamine in animal tissue foods by ultra-performance liquid chromatography. PG - 579-585 LID - 10.1016/j.jfda.2016.01.003 [doi] AB - An effective sample preparation procedure using an accelerated solvent extraction (ASE) procedure, followed by cleaning with melamine molecularly imprinted polymers solid-phase extraction (MISPE) was developed. A novel and highly sensitive ASE-MISPE-ultra-performance liquid chromatography (UPLC) method was developed for effective separation and simultaneous determination of dicyandiamide (DCD), cyromazine (CYR), and melamine (MEL) in complex animal tissue foods. Under optimized conditions, good linearity was achieved with a correlation coefficient (r) of 0.9999 in the range of at least two orders of magnitude. The limit of quantification of the method was 1.7 mug/kg, 5.0 mug/kg, and 3.2 mug/kg for DCD, MEL, and CYR, which was three orders of magnitude smaller than the maximum residue limits (MRLs). The intra- and inter-day precisions (in terms of the relative standard deviation, RSD) of the three analytes were in the range of 1.7-3.1% and 3.1-6.3%, respectively. The average recoveries of analytes from blank chicken, beef, mutton, pork, and pig liver samples spiked with the three levels varied from 91.2% to 107% with RSD of 1.7-8.3% for DCD, 89.0-104% with RSD of 2.1-6.1% for CYR, and 94.8-105% with RSD of 1.1-6.6% for MEL. The proposed method has the characteristics of speed, sensitivity, and accuracy, and can be used for the routine determination of DCD, CYR, and MEL at the mug/kg level in complex animal tissue foods. CI - Copyright (c) 2016. Published by Elsevier B.V. FAU - Ge, Xusheng AU - Ge X AD - College of Chemistry and Environmental Science, Hebei University, Key Laboratory of Analytical Science and Technology of Hebei Province, Baoding, 071002, China. AD - Biochemical Department, Baoding University, Baoding, 071000, China. FAU - Wu, Xingqiang AU - Wu X AD - College of Chemistry and Environmental Science, Hebei University, Key Laboratory of Analytical Science and Technology of Hebei Province, Baoding, 071002, China. FAU - Liang, Shuxuan AU - Liang S AD - College of Chemistry and Environmental Science, Hebei University, Key Laboratory of Analytical Science and Technology of Hebei Province, Baoding, 071002, China. FAU - Su, Ming AU - Su M AD - College of Chemistry and Environmental Science, Hebei University, Key Laboratory of Analytical Science and Technology of Hebei Province, Baoding, 071002, China. FAU - Sun, Hanwen AU - Sun H AD - College of Chemistry and Environmental Science, Hebei University, Key Laboratory of Analytical Science and Technology of Hebei Province, Baoding, 071002, China. LA - eng PT - Journal Article DEP - 20160223 PL - China (Republic : 1949- ) TA - J Food Drug Anal JT - Journal of food and drug analysis JID - 101630927 RN - 0 (Guanidines) RN - 0 (Triazines) RN - CA49Y29RA9 (cyromazine) RN - M9B1R0C16H (dicyandiamido) RN - N3GP2YSD88 (melamine) SB - IM MH - Animals MH - Chromatography, Liquid MH - Guanidines/*analysis MH - Milk MH - Red Meat MH - Swine MH - Triazines/*analysis PMC - PMC9336660 OTO - NOTNLM OT - animal tissue foods OT - cyromazine OT - dicyandiamide OT - melamine OT - ultra-performance liquid chromatography COIS- Conflicts of interest All contributing authors declare no conflicts of interest. EDAT- 2016/07/01 00:00 MHDA- 2017/12/19 06:00 PMCR- 2016/02/23 CRDT- 2017/09/16 06:00 PHST- 2015/10/28 00:00 [received] PHST- 2016/01/08 00:00 [revised] PHST- 2016/01/21 00:00 [accepted] PHST- 2017/09/16 06:00 [entrez] PHST- 2016/07/01 00:00 [pubmed] PHST- 2017/12/19 06:00 [medline] PHST- 2016/02/23 00:00 [pmc-release] AID - j.jfda.2016.01.003 [pii] AID - jfda-24-03-579 [pii] AID - 10.1016/j.jfda.2016.01.003 [doi] PST - ppublish SO - J Food Drug Anal. 2016 Jul;24(3):579-585. doi: 10.1016/j.jfda.2016.01.003. Epub 2016 Feb 23.