摘要
建立了纺织品游离甲醛的衍生．萃取．气质联用测定方法：试样剪碎后置于饱和NaCl溶液中，60℃超声波超声处理30min，用五氟苯盐酸氢胺衍生化后，采用顶空固相微萃取和色质联用技术（HS-SPME-GC-MS），选择离子（m/z181）进行定量。该方法适用于各类单层或多层纤维织物中甲醛的测定，加标回收率94．9％-98．7％，相对标准偏差2．97％-4．59％；方法检出限为0．02mg／kg。
A method had been developed for analysis of formaldehyde in fabrics by GC-MS using headspace solid phase extraction. Samples were treated with 1 mg/mL o- （2,3,4,5,6-Pentafluorobenzyl） hydroxylamine （PFBOA） in a sealed vial at 60℃ for 30min. Headspace was then extracted by solid-phase microextraction （SPME） with 65μm PDMS/DVB and directly analyzed by gas chromatography/mass spectrometry （GC/MS） at selected ion method （SIM） mode. This headspace SPME-GC/MS is highly sensitive for target compound because it eliminates interference from the sample matrix solution. The limits of detection were 0.02 mg/kg with average recovery between 94.9 % - 98.7 % at different spiking level. The relative standard deviation of the compounds in spiked sample were 2.97 % -4.59 % respectively.
出处
《印染》
北大核心
2006年第1期39-41,共3页
China Dyeing and Finishing
关键词
测试
甲醛
含量
气相色谱法
质谱法
织物
testing
formaldehyde
content
gas chromatography
mass spectrometric method
fabric
