Simultaneous Determination of Octylphenol and Nonylphenol in Drinking Water by Gas Chromatography-Mass Spectrometry with Internal Standard
Method to determine octylphenol and nonylphenol in drinking water simultaneously was established by gas chromatography-mass spectrometry with internal standard.Samples were extracted with toluene through the liquid-liquid extraction method,and were concentrated and metered volume.Quantification was carried out by an internal standard.The calibration curves of octylphenol and nonylphenol were both linear in the concentration range of 0.01-2.00mg/L.And the correlation coefficients(r2)were both greater than 0.995.The detection limits for octylphenol and nonylphenol were 0.007 and 0.033 μg/L separately.The recoveries at three spiked levels were 83.9%-104.9%and the relative standard deviations(RSD,n=6)were 2.0%-8.4%.This method can simultaneously determine the octylphenol and nonylphenol accurately in drinking water.
gas chromatography-mass spectrometryinternal standarddrinking wateroctylphenolnonylphenol
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