PMID- 21780700 OWN - NLM STAT- MEDLINE DCOM- 20110823 LR - 20141120 IS - 0959-3330 (Print) IS - 0959-3330 (Linking) VI - 32 IP - 3-4 DP - 2011 Feb-Mar TI - Effective separation and sensitive determination of cyanuric acid, melamine and cyromazine in environmental water by reversed phase high-performance liquid chromatography. PG - 317-23 AB - A new method for the simultaneous determination of cyanuric acid (CA), melamine (MM) and cyromazine (CM) in different water samples was developed by using reversed phase high-performance liquid chromatography diode-array detection (RP-HPLC-DAD). The conditions of HPLC were investigated and optimized. A KROMASIL C18 column (250 x 4.6 mm ID, 5 microm) was used for the RP-HPLC using gradient elution with a mobile phase composed of 0.1 mM KH2PO4-K2HPO4 buffer solution (pH = 7.3) and methanol (75:25, v/v). The conditions for HPLC were investigated and optimized. Under optimal conditions, the linearity was satisfactory in the range of 0.04-10.00 microg/mL with a correlation coefficient of 0.999, and the method limits of detection (LODs) of the proposed method were 0.02 microg/mL for CA and CM, and 0.01 microg/mL for MM. The recoveries were: 96.0-116.0% with relative standard deviations (RSDs) of 0.9-5.7% for CA, 94.3-115.0% with RSDs of 1.5-5.3% for MM, and 91.0-112.0% with RSDs (n = 6) of 1.0-4.9% for CM. The proposed method can permit the detection of CA and CM at levels as low as 0.07 microg/mL and MM at levels as low as 0.03 microg/mL in environmental water samples. 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. hanwen@hbu.edu.cn FAU - Qin, Xiaolan AU - Qin X FAU - Ge, Xusheng AU - Ge X FAU - Wang, Lixin AU - Wang L LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Environ Technol JT - Environmental technology JID - 9884939 RN - 0 (Insecticides) RN - 0 (Triazines) RN - 0 (Water Pollutants, Chemical) RN - CA49Y29RA9 (cyromazine) RN - H497R4QKTZ (cyanuric acid) RN - N3GP2YSD88 (melamine) SB - IM MH - Chromatography, High Pressure Liquid/*methods MH - Insecticides/analysis/isolation & purification MH - Limit of Detection MH - Triazines/analysis/*isolation & purification MH - Water Pollutants, Chemical/analysis/*isolation & purification EDAT- 2011/07/26 06:00 MHDA- 2011/08/24 06:00 CRDT- 2011/07/26 06:00 PHST- 2011/07/26 06:00 [entrez] PHST- 2011/07/26 06:00 [pubmed] PHST- 2011/08/24 06:00 [medline] AID - 10.1080/09593330.2010.499543 [doi] PST - ppublish SO - Environ Technol. 2011 Feb-Mar;32(3-4):317-23. doi: 10.1080/09593330.2010.499543.