样品0.100 0 g置于微波萃取管中，加入乙腈15 mL，涡流振荡2 min，微波萃取20 min，冷却至室温后，收集上清液。再加入乙腈10 mL涡流振荡2 min，合并上清液。所得萃取液蒸发至近干，再用氮气吹干，用10 mL丙酮稀释。以DB-5MS色谱柱为固定相，采用气相色谱-质谱法测定上述溶液中三（2-氯乙基）磷酸酯、三（1，3-二氯丙基）磷酸酯、三（2-氯异丙基）磷酸酯、磷酸三苯酯、磷酸三对甲苯酯、磷酸三间甲苯酯和磷酸三邻甲苯酯等7种有机磷酸酯阻燃剂的含量。质谱分析中采用选择离子监测（SIM）模式。7种有机磷酸酯阻燃剂的线性范围均为1.00~100 mg·L^-1，测定下限（10S/N）为0.28~1.00 mg·L^-1。按标准加入法进行回收试验，回收率在85.9%~95.2%之间，相对标准偏差（n=9）均小于8.0%。

The sample (0.100 0 g) was placed into the microwave extraction tube, and 15 mL of acetonitrile was added. The mixture was oscillated whirling for 2 min and extracted by microwave for 20 min. Cooling to room temperature, the supernatant was collected. 10 mL of acetonitrile was added and the mixture was oscillated whirling for 2 min. The above supernatants were combined and concentrated to dryness nearby, and then dried by N₂-blowing. The residue was diluted with 10 mL of acetone. Tris(2-chloroethyl) phosphate, tris(1,3-dicloropropyl) phosphate, tris(2-chloroisopropyl) phosphate, triphenyl phosphate, tri-p-cresyl phosphate, tri-m-cresyl phosphate and tri-o-cresyl phcsphate in the above solution were determined by gas chromatography mass spectrometry (GC-MS) using DB-5MS column as the stationary phase.SIM mode was adopted in MS analysis. Linearity ranges of the 7 organophosphate ester flame retardants were all 1.00-100 mg·L^-1, with lower limits of determination (10S/N) of 0.28-1.00 mg·L^-1.Test for recovery was made by standard addition method, giving results in the range of 85.9%-95.2%, with RSDs (n=9) all less than 8.0%.