Nuklida · radioaktif
Teknesium-99 (⁹⁹Tc)
Teknesium-99 (⁹⁹Tc) adalah isotop radioaktif teknesium dengan 43 proton dan 56 neutron (nomor massa 99). Waktu paruhnya 211,1 ribu tahun (± 1,2 ribu tahun), meluruh terutama lewat peluruhan beta minus (β⁻).
Data nuklida
- Nomor massa (A)
- 99
- Proton (Z)
- 43
- Neutron (N)
- 56
- Massa atom
- 98.906249681 ± 0.000000974 u
- Waktu paruh
- 211,1 ribu tahun (± 1,2 ribu tahun)
- Mode peluruhan
- Peluruhan beta minus (β⁻) ( 100 %)
- Inti anak
- Rutenium-99 (⁹⁹Ru)
- Tahun penemuan
- 1938
- Sumber data
- IAEA Atomic Mass Data Center (NUBASE) and IUPAC CIAAW, via PubChem
Kegunaan isotop teknesium
- 99mTc is an isomer of 99Tc with a half-life of approximately 6 h that is used to label peptides for morphologic (the form and structure of an organism) and dynamic modeling of renal (kidney), hepatic (liver), bone, and cardiac imaging,. 99mTc radiopharmaceuticals absorb to a variety of tumors. These tumors can be imaged using single-photon emission computed tomography (SPECT) coupled with non-invasive computed tomography (CT scan), which provides a high level of functional and anatomical information in a three-dimensional image (Fig. IUPAC.43.1),. Medronate is a radioactive pharmaceutical, which has been used to find, treat, or study certain diseases or body functions. 99mTc-labeled medronate (99mTc-MDP) is used in a diagnostic test to detect metastases from prostate, lung or thyroid cancer, making use of a gamma camera to record the distribution of 99mTc-MDP within the body. A two-dimensional image of the affected areas is produced.
Isotop teknesium lainnya
⁸³Tc, ⁸⁴Tc, ⁸⁵Tc, ⁸⁶Tc, ⁸⁷Tc, ⁸⁸Tc, ⁸⁹Tc, ⁹⁰Tc, ⁹¹Tc, ⁹²Tc, ⁹³Tc, ⁹⁴Tc, ⁹⁵Tc, ⁹⁶Tc, ⁹⁷Tc, ⁹⁸Tc, ¹⁰⁰Tc, ¹⁰¹Tc, ¹⁰²Tc, ¹⁰³Tc, ¹⁰⁴Tc, ¹⁰⁵Tc, ¹⁰⁶Tc, ¹⁰⁷Tc, ¹⁰⁸Tc, ¹⁰⁹Tc, ¹¹⁰Tc, ¹¹¹Tc, ¹¹²Tc, ¹¹³Tc, ¹¹⁴Tc, ¹¹⁵Tc, ¹¹⁶Tc, ¹¹⁷Tc, ¹¹⁸Tc, ¹¹⁹Tc, ¹²⁰Tc, ¹²¹Tc, ¹²²Tc