提出了气相色谱法测定家具和纺织品中富马酸二甲酯、富马酸二乙酯、富马酸单乙酯3种防腐剂。样品用乙酸乙酯超声提取后,30 ℃旋转蒸发器中浓缩至2 mL。用乙酸乙酯稀释定容至5.0 mL,通过DB-FFAP色谱柱分离,采用选择离子监测模式进行测定。富马酸二甲酯和富马酸二乙酯的的线性范围为0.05~5.00 mg·L-1、富马酸单乙酯的的线性范围为0.10~10.0 mg·L-1,测定下限(10S/N)依次为0.01,0.01,0.02 mg·kg-1。以家具和纺织品样品为基体,在3个浓度水平下进行回收试验,3种防腐剂的回收率均大于80%,相对标准偏差(n=6)均小于5.0%。

A method for determination of 3 fumaric ester preservatives, including dimethyl fumarate (DMF), diethyl fumarate (DEF) and monoethyl fumarate (MEF), in furnitures and textiles by GC-MS was proposed. The 3 preservatives in sample were extracted ultrasonically with ethylacetate and the extract was concentrated to 2 mL in a rotary evaporator at 30 ℃. After diluting to 5.0 mL with ethylacetate, the solution was used for GC-MS analysis. DB-FFAP column was used for separation, and selected ion monitoring mode was adopted in MS measurements. Linearity ranges of DMF and DEF were kept from 0.05 to 5.00 mg·L-1, and MEF from 0.10 to 10.00 mg·L-1. Values of limit of determination (10S/N) found were 0.01, 0.01 and 0.02 mg·kg-1 respectively. Tests for recovery and precision were made by standard addition method at 3 different concentration levels, values of recovery found were more than 80% and RSD′s (n=6) less than 5.0%.