Synthesis of a Novel Imidazole Ionic Liquid Modified Mesoporous Silica SBA15 for Selective Separation and Determination of Inorganic Arsenic in Rice
Synthesis of a Novel Imidazole Ionic Liquid Modified Mesoporous Silica SBA15 for Selective Separation and Determination of Inorganic Arsenic in Rice
复制标题
新型咪唑离子液体改性介孔二氧化硅SBA15的合成用于选择性分离和测定大米中的无机砷
DOI：
10.14102/j.cnki.0254-5861.2011-2201
复制
发表时间：
2018-12-10
影响因子：
2.2
通讯作者：
Chen Shao-Dun
中科院分区：
文献类型：
--
作者：
Chen Tuan-Wei;Zhen Wen-Bo;Chen Shao-Dun
合成了一种新型的1-甲基咪唑离子液体修饰SBA15介孔二氧化硅（1-MIIL@SBA15），并将其应用于分散固相萃取(DSPE) -氢化物发生-原子荧光光谱（hs - afs）法对水稻中无机砷（iAs）的选择性分离。用FTIR、FESEM、BET和Zeta电位对所制备的吸附剂进行了表征。以1568b米粉为标准参比物，对DSPE中吸附和解吸的关键参数进行了优化。在最佳条件下，检出限为8.776 ng/kg，相对标准偏差为
A novel 1-methylimidazole ionic liquid modified SBA15 mesoporous silica (1-MIIL@SBA15) was synthesized and applied to selective separation of inorganic arsenic (iAs) in rice by dispersive solid phase extraction (DSPE), followed by hydride generation-atomic fluorescence spectrometric (HG-AFS) quantification. The prepared sorbent was characterized by FTIR, FESEM, BET and Zeta potential. Key parameters of adsorption and desorption in DSPE were optimized using standard reference material 1568b rice flour. Under optimal conditions, the limit of detection was 8.776 ng/kg, relative standard deviation was