In this study, matrix solid-phase dispersion coupled with gas chromatography–tandem mass spectrometry (GC–MS/MS) was developed for the analysis of 23 organophosphate esters (OPEs) in vegetables. Under the optimal conditions, 0.5 g vegetables was dispersed with use of 2 g Florisil, 2 g anhydrous sodium sulfate, and 0.1 g graphitized carbon black, and it was transferred to an empty solid-phase extraction cartridge. The analytes were eluted with 15 mL n-hexane/acetone (1:1, v/v) and analyzed by GC–MS/MS. The method detection limits and quantitation limits ranged from 0.05 to 0.33 ng/g and from 0.16 to 1.10 ng/g, respectively. The recoveries ranged from 65.1% to 109.1%, and the relative standard deviations were less than 15%. The analysis of eight kinds of vegetables shows that the vegetables had been contaminated by OPEs; the concentrations of the sum of the OPEs ranged from 5.89 to 26.8 ng/g. The proposed method is applicable to analyze OPEs in vegetables.

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在这项研究中，基质固相分散体与气相色谱-串联质谱法（GC-MS / MS）结合使用，用于分析蔬菜中的23种有机磷酸酯（OPE）。在最佳条件下，使用2克Florisil，2克无水硫酸钠和0.1克石墨化炭黑分散0.5克蔬菜，然后将其转移到空的固相萃取柱中。所述分析物用15mL洗脱Ñ-己烷/丙酮（1：1，v / v）并通过GC–MS / MS进行分析。方法的检测限和定量限分别为0.05至0.33 ng / g和0.16至1.10 ng / g。回收率从65.1％到109.1％不等，相对标准偏差小于15％。对8种蔬菜的分析表明，这些蔬菜已被OPE污染；OPE总量的浓度范围为5.89至26.8 ng / g。所提出的方法适用于分析蔬菜中的OPE。

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