Detection of Adipate Plasticizers in Water by Gas Chromatography-mass Spectrometry

Objectives To develop an analytical method of using gas chromatography-mass spectrometry (GC-MS) for four adipate plasticizers in water samples.

Methods The water sample added with BBPA as internal standard was extracted twice by hexanes. Then the contents of DEA, DBA, DIBA and DEHA were determined qualitatively and quantitatively by using the SCAN mode and SIM mode of GC-MS.

Results The lowest detection limits were in the range of 0.015~0.03μg/L, and the recoveries were in the range of 96.1%~106.5%. The relative standard deviations (RSDs) were all less than 5%.

Conclusions This method is simple, sensitive and accurate, and is suitable for the detection of adipate compounds in water.