GB/T 21911-2008 in English

《GB/T 21911-2008食品中邻苯二甲酸酯的测定》由424-cnis（中国标准化研究院）归口，主管部门为国家市场监督管理总局。
本标准规定了食品中邻苯二甲酸酯类物质含量的气相色谱-质谱联用（GC-MS）测定方法。
本标准适用于食品中邻苯二甲酸酯类物质含量的测定。
本标准检出限：含油脂样品中各邻苯二甲酸酯化合物的检出限为1.5mg/kg，不含油脂样品中各邻苯二甲酸酯化合物的检出限为0.05mg/kg。

Determination of Phthalate Esters in Foods
1 Scope
This standard specifies method of determination for content of phthalate esters in food with gas chromatogram - mass-spectrometer (GC-MS).
This standard is applicable to determination for contents of phthalate esters (of 16 types, detailed in Appendix A) in food.
Detection limits in this standard: 1.5 mg/kg for determinating phthalate ester compounds in oil-containing sample; 0.05 mg/kg for determinating ones in oil-free sample.

2 Principles
Foods after being extracted and purified are detected by gas chromatograph - mass spectrometer running under feature selective ion monitoring (SIM) mode, determinating nature (quality) by abundance ratio of chips, and determinating quantity by standard sample quantitative ion external standard method.