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| Determination of Five Phenolic Compounds in Waterborne Coatings by QuEChERS/Ultra High Performance Liquid Chromatography |
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| DOI：10.3969/j.issn.1004-4957.年份.月份 |
| KeyWord:UPLC QuEChERS waterborne coatings phenolic compounds |
| Author | Institution |
| LIU Fu-jian,GUO Xin-dong*,WENG Yi-bin,XIAN Yan-ping,PENG Ying, CHEN Ji-wen,HUANG Jin-feng,LU Yu-jing |
1．广东产品质量监督检验研究院;2.广州市质量监督检测研究院;3.广东工业大学轻工化工学院 |
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| Abstract: |
| A method was developed for the simultaneous determining of five phenolic compounds，including biphenol A（BPA）,octylphenol（OP）,nonylphenol（NP）,octyl phenoxypoly（ethyleneoxy）ethanol（OPEO） and nonylphenoxypoly（ethyleneoxy）ethanol（NPEO）） in waterborne coatings by QuEChERS/ultra high performance liquid chromatography with fluorescence detector（UPLC/FLD）.Samples were dispersed firstly by QuEChERS（PSA+C18+MgSO4）,and stirred uniformly to reduce the impurity,then extracted ultrasonically with dichloromethane-acetonitrile（1∶3）.The ultimate solution was quantified by UPLC/FLD on a C18 column by gradient elution with water-acetonitrile as mobile phase at a flow rate of 0.2 mL/min.Under the optimized conditions,the method had good linear relationships（r＞0.999 5） in the range of 5-1 300 μg/L for five compounds.The method detection limits(MLOD) for targeted compounds ranged from 0.4 mg/kg to 1.0 mg/kg.The spiked recoveries of five compounds varied from 97.5% to 114% with relative standard deviations（RSDs） of 2.6%-6.5%.The results showed that the method was simple,sensitive and precise,and could meet the qualification and quantification analysis requirements for BPA,OP,NP,OPEO and NPEO residues in waterborne coatings. |
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