RADIOISOTOPES

Online ISSN : 1884-4111
Print ISSN : 0033-8303
ISSN-L : 0033-8303

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Volume 30, Issue 11

Displaying 1-14 of 14 articles from this issue

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Quantitative Measurement Method of α-Emitters by Using Liquid Scintillation Counter Connected with Multichannel Pulse-Height Analyzer

Tamaru ABURAI, Makoto TAKIUE, Hiroaki ISHIKAWA

1981Volume 30Issue 11 Pages 579-583
Published: 1981
Released on J-STAGE: September 07, 2010

DOIhttps://doi.org/10.3769/radioisotopes.30.11_579

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A new a-ray quantitative measurement method has been proposed, where the measurement system is designed to connect a liquid scintillation counter with a multichannel pulse-height analyzer. This technique provides the remarkable advantages such as a simplicity of sample preparation, a 100% counting efficiency measurement and the elimination of interfering radiations.

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Synthesis of Selectively ³H or ¹⁴C-Labeled 2- (4- (2-Thienylcarbonyl) phenyl) propionic Acid

Yukio MORI, Masayoshi SHIBATA, Kazumi TOYOSHI, Shigeo BABA, Masanobu H ...

1981Volume 30Issue 11 Pages 584-589
Published: 1981
Released on J-STAGE: September 07, 2010

DOIhttps://doi.org/10.3769/radioisotopes.30.11_584

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2- (4- (2-Thienylcarbonyl) phenyl) propionic acid (suprofen), an anti-inflammatory agent, was labeled with tritium or carbon-14 for the purpose of investigating its metabolic fate in animals. The selectively tritiated suprofen (26.3-32.1 GBq (710-867mCi) lmmol) was obtained by catalytic dehalogenation of the brominated precursor with 185-370 GBq (5-10 Ci) of tritium gas. The labeled position of the suprofen was confirmed by spectral data of the deuterated suprofen similarly synthesized. On the other hand, suprofen-14C (48.8 MBq (1.4 mCi) /mmol) was obtained by five-step synthesis from toluene [methyl-14C] in a 19% yield.

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Synthesis of Optically Active 2- (4- (2-Thienylcarbonyl) -phenyl) propionic Acid Labeled with Deuterium

Yukio MORI, Masayoshi SHIBATA, Kazumi TOYOSHI, Shigeo BABA, Masanobu H ...

1981Volume 30Issue 11 Pages 590-595
Published: 1981
Released on J-STAGE: September 07, 2010

DOIhttps://doi.org/10.3769/radioisotopes.30.11_590

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2- (4- (2-Thienylcarbonyl) phenyl) propionic acid (suprofen), an anti-inflammatory agent, was labeled with multiple-deuterium for the purpose of investigating the metabolism in man and animals by the ion cluster technique. Racemic suprofen-d₄ was prepared by ten-step synthesis from bromobenzene-d₅ in a 32% yield, and its deuterium content was 99 atom%. This racemic suprofen-d₄was resolved by use of an optically active a-methylbenzylamine, resulting that optically active suprofen-d₄ was obtained in a 11% yield and was 96.5 atom% D. On the other hand, suprofen-d₇ (99 atom% D) was obtained by five-step synthesis from toluene-d₈ and methyl-d₃iodide in a 24% yield.

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Determination of Accurate Counting Efficiency for Liquid Scintillation Counting

Tomoo SAITO, Kunio OOHASHI, Naotake MORIKAWA

1981Volume 30Issue 11 Pages 596-598
Published: 1981
Released on J-STAGE: July 21, 2010

DOIhttps://doi.org/10.3769/radioisotopes.30.11_596

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Analysis of Potassium-40 in Ashes from Mt. Sakurajima

Akibumi DANNO, Masaakira KAMADA, Yasuo NISHIYAMA, Hayao SAKAMOTO

1981Volume 30Issue 11 Pages 599-601
Published: 1981
Released on J-STAGE: July 21, 2010

DOIhttps://doi.org/10.3769/radioisotopes.30.11_599

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Simple Monitoring of Low Level Water Contaminated with γ- (X-) Ray Emitting Radioisotopes Using a Evaporation Procedure

—With special reference to radioactive iodine—

Tsutomu SAGO

1981Volume 30Issue 11 Pages 602-605
Published: 1981
Released on J-STAGE: July 21, 2010

DOIhttps://doi.org/10.3769/radioisotopes.30.11_602

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Whole Body Bone Scintigram with ^99mTc-HMDP (Technetium-99m-hydroxy methylene diphosphonate)

Yasushi ISOBE, Seishu KO, Yoichiro UMEGAKI, Seiji TAKAHASHI, Noriyoshi ...

1981Volume 30Issue 11 Pages 606-608
Published: 1981
Released on J-STAGE: July 21, 2010

DOIhttps://doi.org/10.3769/radioisotopes.30.11_606

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Bone Scintigraphy with ^99mTc-labeled Methylene Diphosphonate in Hemodialysis Patients

Masato YAMASHITA, Tadashi AOKI, Takeshi KAKIUCHI, Hisao MABUCHI, Yoshi ...

1981Volume 30Issue 11 Pages 609-611
Published: 1981
Released on J-STAGE: July 21, 2010

DOIhttps://doi.org/10.3769/radioisotopes.30.11_609

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Neutron Shielding of the Medical Linac Room

Kouichi TOYOSHIMA, Masaaki YONEMORI, Yasuji FUKUDA, Kimiyoshi TAKADA, ...

1981Volume 30Issue 11 Pages 612-615
Published: 1981
Released on J-STAGE: July 21, 2010

DOIhttps://doi.org/10.3769/radioisotopes.30.11_612

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Peculiar Adsorption of ⁵⁹Fe in Concentrated Chloride Solutions on a Non-ionic Resin of Macro-reticular Type

Kazuo WATARI, Kiyoko IMAI, Jun-ichi OHISHI, Masami IZAWA

1981Volume 30Issue 11 Pages 616-617
Published: 1981
Released on J-STAGE: July 21, 2010

DOIhttps://doi.org/10.3769/radioisotopes.30.11_616

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The Analytical Methods for Radium in Environmental Samples

Hideo HIGUCHI

1981Volume 30Issue 11 Pages 618-627
Published: 1981
Released on J-STAGE: July 21, 2010

DOIhttps://doi.org/10.3769/radioisotopes.30.11_618

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Utilization of Instruments and Equipments for Radiation Protection in the Radioisotope Laboratories and Radiation Areas (III)

Nagao IKEDA, Masaharu KAWANISHI, Norio KURIHARA, Otomaru SATO, Susumu ...

1981Volume 30Issue 11 Pages 628-637
Published: 1981
Released on J-STAGE: July 21, 2010

DOIhttps://doi.org/10.3769/radioisotopes.30.11_628

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Exposure Rates from ²³⁸Pu Fueled Nuclear Battery for Cardiac Pacemaker

Shinichiro KURIHARA, Tadashi SAITO, Takashi KIKEGAWA, Shinichi KANAYA, ...

1981Volume 30Issue 11 Pages 638-645
Published: 1981
Released on J-STAGE: July 21, 2010

DOIhttps://doi.org/10.3769/radioisotopes.30.11_638

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[title in Japanese]

1981Volume 30Issue 11 Pages A2171-A252
Published: 1981
Released on J-STAGE: July 21, 2010

DOIhttps://doi.org/10.3769/radioisotopes.30.11_A2171

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