Amine Switchable Hydrophilic Solvent Vortex-Assisted Homogeneous Liquid-Liquid Microextraction and GC-MS for the Enrichment and Determination of 2, 6-DIPA Additive in Biodegradable Film

文献类型： 外文期刊

第一作者： Cai, Kai

作者： Cai, Kai;Lin, Yechun;Pan, Wenjie;Gao, Weichang;Liu, Qiang;Yang, Xingyou;Liu, Qi

作者机构：

关键词： heating hydrolysis-extraction; amine switchable hydrophilic solvent; vortex-assisted homogeneous liquid-liquid microextraction; 2, 6-diisopropylaniline; PBAT biodegradable films

期刊名称：MOLECULES （ 影响因子：4.6； 五年影响因子：4.9 ）

ISSN：

年卷期： 2024 年 29 卷 9 期

页码：

收录情况： SCI

摘要： 2, 6-diisopropylaniline (2, 6-DIPA) is a crucial non-intentionally organic additive that allows the assessment of the production processes, formulation qualities, and performance variations in biodegradable mulching film. Moreover, its release into the environment may have certain effects on human health. Hence, this study developed simultaneous heating hydrolysis-extraction and amine switchable hydrophilic solvent vortex-assisted homogeneous liquid-liquid microextraction for the gas chromatography-mass spectrometry analysis of the 2, 6-DIPA additive and its corresponding isocyanates in poly(butylene adipate-co-terephthalate) (PBAT) biodegradable agricultural mulching films. The heating hydrolysis-extraction conditions and factors influencing the efficiency of homogeneous liquid-liquid microextraction, such as the type and volume of amine, homogeneous-phase and phase separation transition pH, and extraction time were investigated and optimized. The optimum heating hydrolysis-extraction conditions were found to be a H2SO4 concentration of 2.5 M, heating temperature of 87.8 degree celsius, and hydrolysis-extraction time of 3.0 h. As a switchable hydrophilic solvent, dipropylamine does not require a dispersant. Vortex assistance is helpful to speed up the extraction. Under the optimum experimental conditions, this method exhibits a better linearity (0.0144 similar to 7.200 mu g mL(-1) with R = 0.9986), low limit of detection and quantification (0.0033 mu g g(-1) and 0.0103 mu g g(-1)), high extraction recovery (92.5 similar to 105.4%), desirable intra- and inter-day precision (relative standard deviation less than 4.1% and 4.7%), and high enrichment factor (90.9). Finally, this method was successfully applied to detect the content of the additive 2, 6-DIPA in PBAT biodegradable agricultural mulching films, thus facilitating production process monitoring or safety assessments.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序