title: [Study on the method of nanometer-size zirconium dioxide enrichment separation and inductively coupled plasma mass spectrometry determination of trace barium(II) in water].
abstract: Monoclinic fusiform zirconium dioxide (ZrO2) nanoparticles were synthesized by hydrothermal method, a method was established based on monoclinic fusiform nanometer-sized ZrO2 enrichment separation, and trace barium in water was determined by inductively coupled plasma mass spectrometry (ICP-MS). The detection limit for Ba(II) was 0.007 ng x mL(-1), and the relative standard deviation was 0.13% (n = 11). The optimal enrichment separation conditions of nanometer-sized ZrO2 for Ba(II) were studied in detail, it was found that the percentage of adsorbed Ba(II) was more than 99% under pH 10.0 and 2 mL 0.5 mol x L(-1) HCl was sufficient for elution of Ba(II) by more than 98%. The static adsorption capacity of ZrO2 to Ba(II) was 196.6 microg x g(-1) and enrichment factor was 250. Properties of nanometer-sized ZrO2 were discussed through regeneration experiment and effects of co-existing ions and contrast experiment to ordinary ZrO2, adsorption properties of nanometer-sized ZrO2 were applied to real samples in the analysis of Ba(II) and the determination was carried out by ICP-MS with satisfactory results.
authors: School of Chemical Engineering & Materials, Heilongjiang University, Harbin 50080, China. xunzhao1981@163.com
authors: Ying-Qiu
authors: YQ
authors: Du
authors: Yi-Dong
authors: YD
authors: Yin
authors: Nai-Ying
authors: NY
authors: Fan
authors: Peng-Gang
authors: PG
authors: Chen
authors: Xiao-Bo
authors: XB
authors: Zhang
authors: Hong-Bo
authors: HB
authors: Ren
authors: Guo-You
authors: GY
authors: Chen
authors: Qiu-Yao
authors: QY
authors: Qu
authors: Zhi-Bo
authors: ZB
authors: Sun
authors: Yue-Xin
authors: YX
authors: Chen
mesh_terms: D001464:Barium / Q000032:analysis*; D004784:Environmental Monitoring; D013058:Mass Spectrometry / Q000379:methods; D053758:Nanoparticles / Q000737:chemistry; D013054:Spectrophotometry, Atomic / Q000379:methods; D014874:Water Pollutants, Chemical / Q000032:analysis*; D015040:Zirconium / Q000737:chemistry*
chemical_list: D014874:Water Pollutants, Chemical; D001464:Barium; D015040:Zirconium; C028541:zirconium oxide