Ultrasonic extraction technique was used to extract perflurooctanoic acid (PFOA) and its salts from fluro-paints.The extract was quantified after filtration and concentration by gas chromatography-mass (GC-MS) method ...Ultrasonic extraction technique was used to extract perflurooctanoic acid (PFOA) and its salts from fluro-paints.The extract was quantified after filtration and concentration by gas chromatography-mass (GC-MS) method using perflurodecanoic acid methyl ester as an internal standard.The GC-MS conditions were: HP-Innowax capillary column; oven temperature,50℃(5 min)30℃/min240℃(5 min); splittless mode; injection volume,1μL; negative chemical ion source,reacting gas,CH4,20%; select ion scan mode (SIM);Line range was 1.0-1.0×105 μg/L; the correlation coefficient was 0.999; the low limit of detection (LOD) was 0.1 μg/L.The RSD was 4.24% and 3.58% respectively for low and high concentration of PFOA,and the average recovery was between 86%-111%.展开更多
将我国生态纺织品技术标准GB/T 18885—2009《生态纺织品技术要求》与2010版Oeko-Tex Standard 100标准进行了对比,分析二两者测试项目的差异,主要包括消解样品中的重金属、全氟辛烷磺酸和全氟辛酸、邻苯二甲酸酯类、有机锡化合物、多...将我国生态纺织品技术标准GB/T 18885—2009《生态纺织品技术要求》与2010版Oeko-Tex Standard 100标准进行了对比,分析二两者测试项目的差异,主要包括消解样品中的重金属、全氟辛烷磺酸和全氟辛酸、邻苯二甲酸酯类、有机锡化合物、多环芳烃、阻燃剂等有害物质的测试项目。对比结果表明,我国的生态纺织品有害物质检测项目与国际标准还存在较大差异,关于纺织品中有害物质的限量研究已明显落后于国外标准,因此应加大生态纺织品中有害物质的检测技术研究力度,加快生态纺织品标准的制修订工作。展开更多
文摘Ultrasonic extraction technique was used to extract perflurooctanoic acid (PFOA) and its salts from fluro-paints.The extract was quantified after filtration and concentration by gas chromatography-mass (GC-MS) method using perflurodecanoic acid methyl ester as an internal standard.The GC-MS conditions were: HP-Innowax capillary column; oven temperature,50℃(5 min)30℃/min240℃(5 min); splittless mode; injection volume,1μL; negative chemical ion source,reacting gas,CH4,20%; select ion scan mode (SIM);Line range was 1.0-1.0×105 μg/L; the correlation coefficient was 0.999; the low limit of detection (LOD) was 0.1 μg/L.The RSD was 4.24% and 3.58% respectively for low and high concentration of PFOA,and the average recovery was between 86%-111%.
文摘将我国生态纺织品技术标准GB/T 18885—2009《生态纺织品技术要求》与2010版Oeko-Tex Standard 100标准进行了对比,分析二两者测试项目的差异,主要包括消解样品中的重金属、全氟辛烷磺酸和全氟辛酸、邻苯二甲酸酯类、有机锡化合物、多环芳烃、阻燃剂等有害物质的测试项目。对比结果表明,我国的生态纺织品有害物质检测项目与国际标准还存在较大差异,关于纺织品中有害物质的限量研究已明显落后于国外标准,因此应加大生态纺织品中有害物质的检测技术研究力度,加快生态纺织品标准的制修订工作。
