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Determination of Cyanuric Acid in Milk Powder and Swimming Pool Water by Ion‐pair Reversed‐phase Liquid Chromatography
Author(s) -
Hou Shengjie,
Ding Mingyu
Publication year - 2011
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201190158
Subject(s) - chemistry , cyanuric acid , reagent , chromatography , calibration curve , acetonitrile , high performance liquid chromatography , phase (matter) , reversed phase chromatography , melamine , hydrophilic interaction chromatography , detection limit , organic chemistry
Abstract An ion‐pair reversed‐phase high‐performance liquid chromatographic method, using tetrabutylammonium bromide (TBAB) as ion‐pair reagent, has been developed for the analysis of cyanuric acid (CA) in milk powder and swimming pool water. It was found that the effect of the concentrations of ion‐pair reagent on the retention of cyanuric acid was different for standard solution and different real samples. The separation was carried out on a reversed‐phase C 18 column with 85:15 ( V / V ) water‐acetonitrile (ACN) containing different concentration of TBAB as mobile phase for different samples. The linear range of the calibration curve for CA was 0.1–100 mg·L −1 . The detection limits calculated at S/N =3 was 0.11 mg·L −1 for the analysis of milk powder and 0.31 mg·L −1 for the analysis of swimming pool water, respectively. The method was successfully applied to the analysis of CA in milk powder and swimming pool water.