Fujino, O. published the artcileDetermination of uranium and thorium in apatite minerals by inductively coupled plasma atomic emission spectrometry with solvent extraction separation into diisobutyl ketone, Application In Synthesis of 1691-93-6, the main research area is uranium thorium determination apatite ICP AES.
Determination of the actinide elements (U and Th) in apatite minerals was examined by inductively coupled plasma at. emission spectrometry (ICP-AES) with solvent extraction separation The spectral interference by Ca in the apatite and the neg. interference by the macro-component (Ca phosphate) occurred simultaneously for U and Th. Therefore, after apatite mineral was treated with hot concentrated HNO3, U and Th were separated from Ca phosphate by the solvent extraction method. 1-Phenyl-3-methyl-4-trifluoroacetyl-5-pyrazolone (HPMTFP, pKa=2.56) was used as an extraction reagent. Diisobutyl ketone was selected as the extraction organic solvent. U and Th were quant. extracted over pH 2, and could be separated from the apatite composites. The organic phase was injected directly into the ICP-AES spectrometer. The U and Th contents in apatite minerals from Florida, USA, are 103 ± 2.2 and 8.84 ± 0.19 ppm. These results were quite comparable with those measured with ICP-mass spectrometry (ICP-MS).
Analytica Chimica Acta published new progress about Apatite-group minerals Role: AMX (Analytical Matrix), ANST (Analytical Study). 1691-93-6 belongs to class pyrazoles-derivatives, name is 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one, and the molecular formula is C12H9F3N2O2, Application In Synthesis of 1691-93-6.
Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics