摘要:
The present invention provides a method for extraction of metals selected from Cr, Mo, Pd, Tc, W, Re, and Pu using a new extractant of methyliminobisalkylacetamide represented by a formula (I): CH3—N—(CH2CONR2)2 (I) wherein R represents an alkyl group having 8-12 carbon atoms.
摘要:
The present invention provides a method for extraction of metals selected from Cr, Mo, Pd, Tc, W, Re, and Pu using a new extractant of methyliminobisalkylacetamide represented by a formula (I): CH3—N—(CH2CONR2)2 (I) wherein R represents an alkyl group having 8-12 carbon atoms.
摘要:
Improved method of laser induced photothermal displacement spectroscopy comprises the steps of applying pulsed laser light to the solution in a sample container, whereupon the light energy absorbed by the solution is converted to heat, with the resulting elastic wave displacing the wall of the sample container by vibrations, detecting the displacement by heterodyne interferometry, and measuring the absorption spectrum of the solution.
摘要:
A process for producing a resin for the chromatographic extraction of metal ions is provided, the process involving:treating an acidic bidentate organic phosphonate metal complexing agent with an alcohol or ketone solvent containing an aqueous alkaline solution, thereby forming the corresponding salt of the phosphonate compound;mixing the bidentate organic phosphonate salt with an absorbent resin in an alcohol or ketone solvent containing an aqueous alkaline solution, thereby absorbing the phosphonate salt in the resin;washing the resin containing bidentate complexing agent with an aqueous alcohol or ketone solution; anddrying the washed resin, wherein the process provides improved chromatographic extraction of metal ions.