采用气相色谱-质谱法(GC-MS)测定三聚氰胺饰面人造板中16种邻苯酯类增塑剂.分别采用二氯甲烷、三氯甲烷、正己烷为索式提取溶剂,选择提取时间5,6,7,8h,对提取溶剂的种类和时间进行优化.结果表明:用三氯甲烷提取7h为最佳条件.该方法线性关系良好,相关系数均大于0.998,检出限在5.45～23.95 mg/kg之间,加标回收率在88.2％～105.4％之间,相对标准偏差在2.1％～5.4％之间.该方法操作简单,灵敏度高,重现性好,能满足三聚氰胺饰面材料中PAEs的检测需求.%Phthalates from melamine resin surfaced wood-base panels was determined with gas chromatographic separation and mass spectrometric detection(GC-MS) method. Extracted phthalates 5,6,7,8 hours by soxhlet extraction method with methylene dichloride, chloroform and normal hexane as the solvent respectively. Results show that PAEs can be effectively extracted with chloroform for 7 hours. The correlation coefficients of 16 PAEs were over 0.998, and detection limits from 5.45 mg/kg to 23.95 mg/kg, The recoveries ranged from 88.2% to 105.4%, and the relative standard deviation ranged from 2.1% to 5.4%. The developed analytical method is rapid and accurate, and suitable for the determination of PAEs in melamine resin surfaced wood-base panels.
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