Using GCMS to Determine the Phthalate Content in E-liquid

User Benefits

- The phthalate content in e-liquid can be determined in accordance with Method II in the National Food Safety Standards: Determination of Phthalates in Foods (GB 5009.271-2016). - Using this method, phthalates can be analyzed with good linearity and repeatability for each component.

Introduction

The Shimadzu GCMS-QP2020 NX gas chromatograph mass spectrometer was used to determine the phthalate content in several e-liquids. Results revealed that linearity was good for each compound within the concentration range of the calibration curve, and correlation coefficients were all above 0.998. A standard mixture at a concentration of 0.10 μg/mL was injected six times consecutively to determine repeatability. Repeatability was good, with the relative standard deviation (RSD%) of the peak area less than 10 % for all of the compounds. That method can be used as a reference to determine the phthalate content in e-liquids.

April 5, 2022 GMT