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- W2380003003 abstract "Objective To develop a method for the determination of fifteen phthalate esters in PM2.5 by using ultrasonic extraction coupled with ultra performance liquid chromatography-tandem mass spectrometry. Methods PM2.5 samples were extracted by ultrasonic extraction. The fifteen phthalate esters were separated on a phenyl column with gradient elution using methanol and water as the mobile phases. The multiple reaction monitoring(MRM) acquisition under positive ion mode was performed. The external matrix standard calibrations were used for the quantitative determination. Results Most phthalate esters showed a good linearity in the range of 0.1-450 μg/L with the correlation coefficients more than 0.996. The limits of quantification(LOQ) were 0.006-3.53 ng/m3. Fourteen spiked recoveries ranged from 80.3% to 113.0% and the relative standard deviations were less than 10%. Conclusion After the exclusion of blank interference, this method is sensitive and applicable to accurate determination of fifteen phthalate esters in PM2.5." @default.
- W2380003003 created "2016-06-24" @default.
- W2380003003 creator A5001459757 @default.
- W2380003003 date "2015-01-01" @default.
- W2380003003 modified "2023-09-28" @default.
- W2380003003 title "Determination of 15 phthalate esters in PM2.5 by ultrasonic extraction-ultra performance liquid chromatography-tandem mass spectrometry" @default.
- W2380003003 hasPublicationYear "2015" @default.
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