包装材料中的酚类环境雌激素的测定-固相微萃取/气相色谱质谱法

Determination of phenolic environmental estrogens in packaging materials by solid phase micro-extraction-gas chromatography coupled mass spectrometry(SPME-GCMS)

建立了固相微萃取-气相色谱质谱法(SPME/GCMS)快速测定包装材料中的烷基酚、双酚A的分析方法,以CH2Cl2为提取溶剂,采用快速溶剂萃取法萃取包装材料中的酚类物质,萃取物经N,O双(三甲基硅烷基)三氟乙酰胺(BSTFA)衍生化后,用PDMS/DVB纤维萃取,利用GC-MS对包装材料中4-叔-丁基酚、4-叔-辛基酚、4-辛基酚、4-壬基酚、双酚A 5种目标物进行定性定量分析。结果表明,酚类物质主要存在于聚碳酸酯材料中,检测4-叔-辛基酚、4-辛基酚和双酚A的质量分数分别为82.44、60.28和78.35μg/kg。

A method for the determination of alkylphenol and bisphenol A in packaging materials by gas chromatography-mass spectrometry （GC-MS） using solid phase microextraction （SPME） was developed. Packaging material sampies were extracted by accelerated solvent extraction with dichloromethane, and concentrated by rotating evaporation. The concentrated samples were derivated by BSTFA and extracted by PDMS/DVB fiber. 4-t-BP, 4-t-OP, 4-OP, 4- NPand BPA were analyzed by GC-MS. The test results showed that phenolic compounds were found only in PC materials, the contents of 4-t-OP, 4-OP and BPA were 82.44, 60.28 and 78.35 μg/kg respectively. 4-t-BP and 4-NP were not detected.