Results 131 to 140 of about 13,323 (173)

Determination of radiochemical purity and stability of 99mTc-diethyl HIDA

European Journal of Nuclear Medicine, 1981
Several 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, D, Konstantinovska, T, Memedović   +2 more
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Effect of 99Tc on the radiochemical purity of 99mTc radiopharmaceuticals

Nuclear Medicine Communications, 2011
The longer the time between elutions of a technetium-99m (Tc) generator, the greater the Tc : Tc ratio in the eluate. Information is limited on how this affects the radiochemical purity (RCP) of Tc radiopharmaceuticals. The aim was to determine whether the RCPs of Tc radiopharmaceuticals are affected when prepared using Tc-pertechnetate from a ...
Lynn A, Waight, Caroline M, Cunnane, Lesley M, O'Brien, Alistair M, Millar   +3 more
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Radiochemical Purity Determinations of Labelled Proteins

1987
Biologically relevant proteins labelled by different isotopes are widely used in nuclear medicine and in many fields of biological research. Proteins most frequently applied in nuclear medicine are listed in Table 1 while the labelling isotopes are shown in Table 2. For the labelling of proteins various methods have been introduced.
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Radiochemical purity of various 99mTc-labelled bone-scanning agents

European Journal of Nuclear Medicine, 1976
The radiochemical purity of preparations for 99mTc-bone-scanning was tested using thin-layer chromatography and electrophoresis. The investigation included ten commercial kits, comprising four types of phosphorus compounds, i.e. sodium polyphosphate, sodium pyrophosphate, disodium diphosphonate, and sodium monofluorophosphate.
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Radiochemical purity of routinely prepared 99Tcm radiopharmaceuticals: A retrospective study

Nuclear Medicine Communications, 2000
Radiochemical purity is an important quality parameter for radiopharmaceuticals. In this study, the radiochemical purity of 2090 samples out of 7000 routine preparations of 20 different 99Tcm radiopharmaceuticals was tested using standard methods over a period of more than 7 years.
C, Decristoforo, R, Siller, F, Chen, G, Riccabona   +3 more
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An enquiry into the purity of commercial radiochemicals

Pure and Applied Chemistry, 1970
Abstract
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Radiochemical Purity of Short-Lived Technetium 99m from Commercial Suppliers

Radiology, 1969
Three major radiopharmaceutical firms supply separated short-lived 99mTc as sterile sodium pertechnetate, ready for use in brain scans. For small laboratories whose work loads do not justify buying a generator, this “instant” technetium is very convenient. Within the territory covered by the various firms' delivery arrangements, material ordered before
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Radiochemical determination of the optical purity of l-amino acids

Analytical Biochemistry, 1974
Abstract 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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Determination of the Radiochemical Purity of Hippuran by HPLC

1982
Hippuran, 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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Radiochemical purity of cyclotron produced 38S

The International Journal of Applied Radiation and Isotopes, 1978
F.M. Kaspersen, J.Th. Veenboer
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