In this paper, a novel micro drop solvent extraction technique jonied with low temperature ETV-ICP-AES for ultra trace element analysis is reported. The apparatus of micro drop solvent extraction was designed, and pre...In this paper, a novel micro drop solvent extraction technique jonied with low temperature ETV-ICP-AES for ultra trace element analysis is reported. The apparatus of micro drop solvent extraction was designed, and preliminary investigation was made for the extraction of ultra trace La by a micro drop of 0.05 mol/L PMBP-benzene(2 μL). It was found that 500-fold concentration of ultra-trace La in 1 mL solution was achieved in 0.2 mL of glass chamber by a single micro drop of PMBP-benzene suspended on the tip of a 10 μL of microsyringe. The future development of micro drop solvent extraction technique in atomic spectrometry was briefly discussed.展开更多
The state-of-art of the isotopic analysis technique in the laser resonance ionization mass spectrometry (LRIMS) in northwest institute of nuclear technology was founded. Main technique obstacles and feasible resolvent...The state-of-art of the isotopic analysis technique in the laser resonance ionization mass spectrometry (LRIMS) in northwest institute of nuclear technology was founded. Main technique obstacles and feasible resolvents with the application of 1,RIMS in isotopic analysis were discussed. In order to obtain accurate isotope ratio determined by LRIMS, the new method combined with experimental process and correction factor calculated by numerical computation method was proposed and applied to measure lutetium isotope ratio. The natural lutetium isotope ratio determined by use of this method was less than 0.8% by thermal ionization mass spectrometry (TIMS), This method can also be applied to determine abundance ratios of some other elements.展开更多
文摘In this paper, a novel micro drop solvent extraction technique jonied with low temperature ETV-ICP-AES for ultra trace element analysis is reported. The apparatus of micro drop solvent extraction was designed, and preliminary investigation was made for the extraction of ultra trace La by a micro drop of 0.05 mol/L PMBP-benzene(2 μL). It was found that 500-fold concentration of ultra-trace La in 1 mL solution was achieved in 0.2 mL of glass chamber by a single micro drop of PMBP-benzene suspended on the tip of a 10 μL of microsyringe. The future development of micro drop solvent extraction technique in atomic spectrometry was briefly discussed.
文摘The state-of-art of the isotopic analysis technique in the laser resonance ionization mass spectrometry (LRIMS) in northwest institute of nuclear technology was founded. Main technique obstacles and feasible resolvents with the application of 1,RIMS in isotopic analysis were discussed. In order to obtain accurate isotope ratio determined by LRIMS, the new method combined with experimental process and correction factor calculated by numerical computation method was proposed and applied to measure lutetium isotope ratio. The natural lutetium isotope ratio determined by use of this method was less than 0.8% by thermal ionization mass spectrometry (TIMS), This method can also be applied to determine abundance ratios of some other elements.
