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作 者:任清庆[1] 保琦蓓[1,2] 傅科杰 吴丰[1] 钱丹[1]
机构地区:[1]宁波出入境检验检疫局纺织品检测中心,宁波315100 [2]宁波检验检疫科学技术研究院,宁波315012 [3]浙江理工大学材料与纺织学院,杭州310018
出 处:《理化检验(化学分册)》2017年第9期1002-1008,共7页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
基 金:宁波出入境检验检疫局科技计划项目(甬K05-2015);浙江省分析测试科技计划项目(2014C37089);浙江理工大学开放式基金(2014KF08)
摘 要:样品经甲醇超声萃取2次,萃取液浓缩后用异丙醇定容,分析物在Dikama platisil silica硅胶柱(250mm×4.6mm,5.0μm)上分离,以正己烷-异丙醇(85+15)混合液为流动相A、异丙醇-水(85+15)混合液为流动相B进行梯度洗脱。采用荧光检测器检测,激发波长为230nm,发射波长为296nm。3种对特辛基苯酚乙氧基化物的线性范围均为0.50~50mg·L^(-1),检出限(3S/N)在0.30~0.40mg·kg^(-1)之间。加标回收率在94.4%~106%之间,测定值的相对标准偏差(n=6)小于6.0%。The sample was ultrasonically extracted twice with methanol.The extract was concentrated and then diluted with isopropanol.The analytes were seperated on a Dikama Platisil silica column (250mm×4.6mm,5.0μm),with N-hexane-isopropanol (85+15) as mobile phase A,isopropanol-water (85+15) as mobile phase B for gradient elution.Fluoresence detector was used with the excitation wavelength of 230 nm and the emission wavelength of 296 nm.Linearity ranges of the 3 kinds of 4-(1,1,3,3-tetramethylbutyl)phenol,ethoxylated were all 0.50-50mg·L^-1,with detection limits (3S/N) of 0.30-0.40mg·kg^-1.Recovery rates obtained by standard addition method were in the range of 94.4%-106% and RSDs (n=6) were less than 6.0%.
关 键 词:高效液相色谱法 短链对特辛基苯酚乙氧基化物 纺织品
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