Thermal effect of photolysis in 203Hg, 35S and 131I labeled mercury (II) iodide thiocyanate powders.

نویسندگان

  • K Takei
  • H Hagiwara
  • S Nakamura
چکیده

203Hg, 35S or 131I labeled mercury (II) iodide thiocyanate (HgISCN) powders were prepared, respectively. When the powders were exposed to sunlight, some parts of the crystals of the powders were decomposed and the decomposed atoms diffused toward crystal surface. This diffusion velocity was accelerated by thermal treatment of the darkened powders. The velocity is larger in order of 35S, 203Hg, 131I. Decomposed products consist of colloidal mercury, mercury iodide, mercury sulfide, sulfur dioxide and iodine. Mechanism of photochromism of HgISCN was discussed.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Evaluation of radiopharmaceuticals sequestered by acutely damaged myocardium.

Eighteen radiopharmaceuticals were screened in a small-animal model as potential infarct-localizing agents. Twelve of the 18 compounds were labeled with 99mTc, four with 203Hg, one with 131I, and one with either 203Hg or 125I. The model used heat-induced myocardial lesions in the rat. The absolute concentration within the lesion and also the activity ratios of injured myocardium to normal heart...

متن کامل

A phase I/II clinical trial for adult recurrent glioma using 131i-tm-601, an iodinated peptide derived from scorpion venom

131I-TM-601 is a 36-amino acid peptide, called chlorotoxin (TM-601), derived from scorpion venom labeled with I-131. TM-601 binds a receptor on the surface of tumor cells, and not on normal cells. A single dose of 131I-TM-601 administered intracranially to human xenografted mouse models of glioma has been shown to extend survival up to 269% in multiple studies. 131I-TM-601 is in a multi-center ...

متن کامل

A phase I/II clinical trial for adult recurrent glioma using 131i-tm-601, an iodinated peptide derived from scorpion venom

131I-TM-601 is a 36-amino acid peptide, called chlorotoxin (TM-601), derived from scorpion venom labeled with I-131. TM-601 binds a receptor on the surface of tumor cells, and not on normal cells. A single dose of 131I-TM-601 administered intracranially to human xenografted mouse models of glioma has been shown to extend survival up to 269% in multiple studies. 131I-TM-601 is in a multi-center ...

متن کامل

Labeled sulfur uptake by thyroids of rats with low plasma thiocyanate levels.

In a previous paper (1) we reported data, based upon the use of radiosulfur, showing that in the rat the affinity of the whole thyroid for thiocyanate ion is slight but is significantly greater than in other tissues. Baumann and Metzger (2), using different analytical procedures, reported a similar observation. The uptake of thiocyanate ion by the thyroid is of especial interest because of the ...

متن کامل

Monoisoamyl meso-2,3-dimercaptosuccinate as a delayed treatment for mercury removal in rats.

Monoisoamyl meso-2,3-dimercaptosuccinate (Mi-ADMS) was found to be superior to meso-2,3-dimercaptosuccinic acid (DMSA) in decreasing the body burden of 203Hg in rats under conditions of early treatment. In this experiment Mi-ADMS was used as late treatment for mercury removal. Albino rats aged 6 weeks and 7-day-old sucklings received a single intraperitoneal injection of 203Hg (as nitrate). Two...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Radioisotopes

دوره 31 1  شماره 

صفحات  -

تاریخ انتشار 1982