摘要
提出了用气相色谱-质谱法测定纺织品中N-乙基全氟辛烷磺酰胺的方法。试样经甲醇超声提取后，在旋转蒸发仪中浓缩至5mL，通过DB-5MS色谱柱分离，采用选择离子监测模式检测，定性离子为m／z69，108，131，169，448，定量离子为m／z108。N-乙基全氟辛烷磺酰胺的质量浓度在0．2～20．0mg·L-1范围内与峰面积呈线性关系，检出限（3S／N）为0．69μg·L。用标准加入法做回收试验，测定平均回收率为97％。
A method for determination of N-ethyl perfluorooctanesulfonamide in textiles by GC-MS was proposed. N ethyi perfluorooctanesulfonamide in samples was extracted with methanol ultrasonically and the extract was concentrated to 5 mL in a rotary evaporator. The DB-SMS column was used for separation, and selected ion monitoring mode was used in the MS measurement. Ions used for qualitative analysis were： m/z 69, 108, 131, 169, 448; ion use for quantitative analysis was m/z 108. Linear relationship was obtained between values of peak area and concentration of N-ethyl perfluorooetanesulfonamide in the range of 0. 2 -- 20. 0 mg · L-1 , with detection limit （3S/N） of 0. 69 μg · L-1. Test for recovery was made by standard addition method, giving value of average recovery of 97 %.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2011年第9期1049-1051,1054,共4页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
基金
上海市科学技术委员会2008年度创新行动计划技术标准专项(08DZ0503100)
