These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Preconcentration of lanthanum, europium and ytterbium with tribromoarsenazo-cetylpyridinium bromide supported on microcrystalline naphthalene and their determinations by inductively coupled plasma atomic emission spectrometry.
    Author: Cai B, Hu B, Xiong H, Liao Z, Mao L, Jiang Z.
    Journal: Talanta; 2001 Aug 03; 55(1):85-91. PubMed ID: 18968349.
    Abstract:
    A sensitive and rapid method for the determination of lanthanum, europium and ytterbium by inductively coupled plasma atomic emission spectrometry (ICP-AES) after solid-liquid extraction with microcrystalline naphthalene was developed. Analytes could be quantitatively adsorbed on tribromoarsenazo-cetylpyridinium bromide-naphthalene (TBA-CPB-naphthalene) packed in a column and determined by ICP-AES after desorption with 3 moll(-1) HCl. The effect of various experimental parameters, such as pH, reagent amounts, naphthalene concentrations and diverse ions, on the determination of interesting elements were investigated in detail. Under the optimized experimental conditions, the detection limits of this method for La(3+), Eu(3+) and Yb(3+) were 1.3-8.6 ngml(-1), and the relative standard deviations obtained for nine replicate determinations at a concentration of 0.5 mugml(-1) were 1.4-2.2%. The proposed method has been applied in the analysis of NIES CRM No. 8 vehicle exhaust particulates and GBW 07602 GSV-1 bush branches and leaves for La, Eu and Yb, and La in NIST SRM 1752 citrus leaves samples; the analytical results were in good agreement with reference values.
    [Abstract] [Full Text] [Related] [New Search]