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Showing 1 to 10 of 10 for “"extraction chromatography"”.
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Supercritical fluid extraction/chromatography and Fourier transform infrared spectrometry: methods optimization and applications
This work examines the use of supercritical fluid extraction (SFE)as a sample introduction technique for supercritical fluid chromatography (SFC) and Fourier transform infrared spectrometry (FT-IR). In order to study the effects of a supercritical mobile phase on the resulting IR spectra, carbon …
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Production and separation of medically relevant terbium-161 for radiopharmaceutical applications and recycling of target materials
… of 55 ± 7%. For larger-scale processing, an extraction chromatography method using TK212, TK211, TK221, and A-8 resins was implemented, enabling purification from targets containing up to 201 mg Gd with recovery yields of 89 ± 4%. Both methods produced 161Tb with high radiochemical (>99%) and …
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OPTIMIZATION OF THE PRODUCTION OF TERBIUM RADIONUCLIDES FOR THERANOSTIC APPLICATIONS
… a radiochemical separation protocol using extraction chromatography was developed for purifying terbium from gadolinium and dysprosium contaminants. The findings highlight key production pathways and offer valuable insights for future clinical applications of terbium radionuclides in …
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Development of separation methods and measurement protocols for Sr and Pb isotopic analysis of archaeological artefacts by means of single-collector and multi-collector ICP-mass spectrometry
… of Sr or Pb from its concomitant matrix via extraction chromatography, so that a purified Sr or Pb fraction was obtained and a quantitative recovery for Sr or Pb was established, and (iii) the accurate and precise determination of the isotopic composition of Sr and Pb via single-collector …
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Development of a separations procedure for plutonium and uranium utilizing branched diglycolamide resin
Extraction chromatographic resins employ the selectivity of solvent extraction methods with the ease of chromatographic techniques. This work sought to explore the behavior of plutonium and uranium on a specialized N,N,N’,N’-tetrakis-2-éthylhexyldiglycolamide (TEHDGA) resin manufactured by Eichrom …
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Development of Green Subcritical Water Separation Technology
… organic solvents are extensively used for extraction, chromatography, chemical analysis, and remediation of toxic chemicals. It requires a large amount of money not only for purchasing the expensive organic solvents but also properly disposing of their wastes. Subcritical water technology …
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Investigating methods for the speed-up of intra-lanthanide chromatographic systems
… are based on relatively slow gravity-fed column chromatography, which trades speed for purity. However, in nuclear forensic applications, speedy separation methods are essential to backtracking and identifying the origin of nuclear materials quickly. One essential separation for nuclear forensics …
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Quantitative Analysis of Additives in Low Density Polyethylene Using On-line Supercritical Fluid Extraction /Supercritical Fluid Chromatography
… products. Traditional liquid solvent/polymer extraction methods, which involve dissolution/precipitation, are time-consuming, uneconomical, and the recoveries are significantly lower than 90%. In recent years, analysis with supercritical fluids (SFs) has emerged as an alternative analytical …
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On-farm fractionation of milk components
Methods for on-farm extraction of low-concentration (minor) proteins from raw whole bovine milk directly after milking were explored. These minor proteins have high commercial value. Lactoferrin (LF) and lactoperoxidase (LP) were used as model proteins for extraction using cation exchange …
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The Investigation of Primary and Secondary Modifiers in the Extraction and Separation of Neutral and Ionic Pharmaceutical Compounds with Pure and Modified Carbon Dioxide
A successful supercritical fluid extraction method includes removal of the analyte from the matrix into the bulk fluid as well as trapping or concentration of the analyte prior to analysis. In the first phase of this research, the trapping capacities of three solid-phase traps (glass beads, 50/50 …