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Determination of Twenty Phthalic Acid Esters in Waterborne Wall Coatings by Gas Chromatography-Mass Spectrometry |
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DOI:10.3969/j.issn.1004-4957.年份.月份 |
KeyWord:phthalic acid esters waterborne wall coatings dispersive solid phase extraction gas chromatography-mass spectrometry |
Author | Institution |
LIU Fu-jian,XIAN Yan-ping,GUO Xin-dong*,WENG Yi-bin, PENG Ying,CHEN Ji-wen,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 established for the determination of 20 phthalic acid esters(PAEs) in waterborne wall coatings by gas chromatography-mass spectrometry(GC-MS) after dispersive solid phase extraction(d-SPE) cleanup.The samples were dispersed with water,and stirred uniformly,then extracted with acetonitrile-methyl tert-butyl ether(9∶1).The ultimate solution was detected by GC-MS under selected ion monitoring mode and quantified by the external standard method.The calibration curves of 20 PAEs were linear in the range of 0.01-10 mg/L with correlation coefficients(r) more than 0.99.The limits of detection(LODs) of the method for target compounds ranged from 0.07 mg/kg to 1.40 mg/kg,and the limits of quantitation of the method(LOQs) varied from 0.3 mg/kg to 4.7 mg/kg.The mean recoveries ranged from 86.3% to 115.3% with relative standard deviations(RSDs) less than 8%.This method was suitable for the identification and quantification of 20 PAEs in waterborne wall coatings due to its simplicity and accuracy. |
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