Toward Full Spectrum Speciation of Silver Nanoparticles and Ionic Silver by On-Line Coupling of Hollow Fiber Flow Field-Flow Fractionation and Minicolumn Concentration with Multiple Detectors
作者： Zhi-Qiang Tan , Jing-Fu Liu , Xiao-Ru Guo , Yong-Guang Yin , Seul Kee Byeon
DOI: 10.1021/ACS.ANALCHEM.5B01827
关键词:
摘要: The intertransformation of silver nanoparticles (AgNPs) and ionic (Ag(I)) in the environment determines their transport, uptake, toxicity, demanding methods to simultaneously separate quantify AgNPs Ag(I). For first time, hollow fiber flow field-flow fractionation (HF5) minicolumn concentration were on-line coupled together with multiple detectors (including UV–vis spectrometry, dynamic light scattering, inductively plasma mass spectrometry) for full spectrum separation, characterization, quantification various Ag(I) species (i.e., free Ag(I), weak strong complexes) differently sized AgNPs. While HF5 was employed filtration (>2 nm), packed Amberlite IR120 resin functioned trap or complexes coming from radial tiny ( 90% tin...
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