Results 171 to 180 of about 16,167 (209)
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Determination of radiochemical purity and stability of 99mTc-diethyl HIDA
European Journal of Nuclear Medicine, 1981Several chromatographic methods have been used for determining the radiochemical purity of 99m Tc-diethyl HIDA (Solco HIDA). Good separation of 99mTc-HIDA from 99mTc-hydrolyzate and nonreduced 99mTcO4- was obtained in a short time using Gelman ITLC (SA) and 2N NaC1 as the mobile phase. In vitro stability was followed by the same method.
V, Jovanović +2 more
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Rapid radiochemical purity testing for [131I]m-iodobenzylguanidine
Nuclear Medicine and Biology, 1995The standard high pressure liquid chromatography (HPLC) method for determining radiochemical purity (RCP) of [131I]m-iodobenzylguanidine ([131I]mIBG) is cumbersome and time-consuming. A simplified and rapid separation method with the use of a reverse-phase extraction chromatography technique (i.e. Sep-Pak C18 [SPC] cartridge) is described.
J C, Hung, M E, Wilson
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Evaluation of C18 monolithic columns for radiochemical purity measurement
Journal of Labelled Compounds and Radiopharmaceuticals, 2016Speeding the analysis of reaction aliquots, high‐performance liquid chromatography (HPLC) fractions and final products continue to be an area of great interest in the study of radiopharmaceuticals. Translating recently developed rapid HPLC and ultra high‐performance liquid chromatography analysis approaches to radio‐HPLC can sometimes be fraught with ...
David J, Schenk +2 more
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Determination of the Radiochemical Purity of Hippuran by HPLC
1982Hippuran, labelled with radioiodine is one of the most used radiopharmaceuticals in nuclear medicine. For the quantitative evaluation of renograms and from the aspect of radiation dose, too, a good radiochemical purity of hippuran is important.
G. Pfeiffer, I. Beranek
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Faster and easier radiochemical purity testing for [125I]sodium iothalamate
Nuclear Medicine and Biology, 1997A previous method for determination of the radiochemical purity (RCP) value of [125I]sodium iothalamate uses two paper strips and solvents (total developing time is approximately 2.5 h). To simplify and shorten the RCP testing procedure, our laboratory has developed a single-strip chromatography method that not only distributes free 125I and [125I ...
C R, Bush +3 more
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Radiochemical purity testing for 99Tcm-exametazime
Nuclear Medicine Communications, 1994The standard radiochemical purity (RCP) determination uses a three-paper chromatography strip and solvent system (TP). The involvement of multiple strips for calculation of percentage primary, lipophilic 99Tcm-exametazime complex is tedious and time-consuming.
J C, Hung +3 more
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[Radiochemical purity studies on 10 radiopharmaceuticals].
Nuklearmedizin. Nuclear medicine, 1985Ten radiopharmaceuticals in frequent clinical use were examined for their radiochemical purity. Thin-layer chromatography, paper chromatography and electrophoresis were used. The activity of the separated components was measured in a gamma sample changer.
I, Knöpnadel +4 more
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A study of the stability and radiochemical purity of some radiopharmaceuticals
Journal of Labelled Compounds, 1970AbstractThe thermal and radiation stability of diiodofluorescein were studied. The decomposition products were separated by paper chromatography. Inorganic iodine, mono‐, tri‐ and tetrafluorescein were found as thermal decomposition products of diiodofluorescein.
Z. Rybakow, J. Cífka
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Determination of radiochemical and radionuclide purity of a 131I preparation
Radiochemistry, 2007The radiochemical purity of a 131I preparation (the iodide fraction) was determined by ascending paper chromatography using a mixture of sodium iodide, sodium iodate, and sodium carbonate as a carrier and aqueous methanol as an eluent. The chromatogram was developed with a scanning β-ray spectrometer. The radiochemical purity of 131I determined by this
I. V. Tselishchev +3 more
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Radiochemical determination of the optical purity of l-amino acids
Analytical Biochemistry, 1974Abstract This technique gives accurate, reproducible results in a short time. It is particularly suitable for studying alanine, aspartic acid, glutamic acid, isoleucine, leucine, methionine, phenylalanine, selenomethionine, serine, tyrosine, and valine.
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