[Study on the method of nanometer-size zirconium dioxide enrichment separation and inductively coupled plasma mass spectrometry determination of trace barium(II) in water].
Guang Pu Xue Yu Guang Pu Fen Xi
; 32(11): 3129-34, 2012 Nov.
Article
in Zh
| MEDLINE
| ID: mdl-23387193
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.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Spectrophotometry, Atomic
/
Mass Spectrometry
/
Barium
/
Water Pollutants, Chemical
/
Zirconium
Language:
Zh
Journal:
Guang Pu Xue Yu Guang Pu Fen Xi
Year:
2012
Document type:
Article
Affiliation country:
China