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Technetium-99m (Technetium-99m (99mTc); hàn-gú: 鎝-99m) sī technetium-99 (pún-sin sī technetium tông-uī-sòo) ê a-ún-thài tông-hi̍k ī-kòo-bu̍t (亞穩態同核異構物), hû-hō uî 99mTc, ta̍k-nî iōng-teh tshian-tshian bān-bān kè-sǹg ê i-liâu tsín-tuàn tîng-sū, sī bo̍k-tsîng sè-kài siōng-tsē lâng iōng ê i-iōng hòng-siā sìng tông-uī sòo.
The first technetium-99m generator, 1958. A 99mTc pertechnetate solution is being eluted from 99Mo molybdate bound to a chromatographic substrate | |
General | |
---|---|
Symbol | 99mTc |
Names | technetium-99m, 99mTc, Tc-99m |
Protons (Z) | 43 |
Neutrons (N) | 56 |
Nuclide data | |
Half-life (t1/2) | h 6.0067[1] |
Isotope mass | 98.9063 Da |
Spin | 1/2− |
Excess energy | −87327.195 keV |
Binding energy | 8613.603 keV |
Parent isotopes | 99MoPang-bô͘:Infobox isotope/decay mode |
Decay products | 99Tc |
Decay modes | |
Decay mode | Decay energy (MeV) |
Isomeric transition γ emission 87.87% |
98.6%: 0.1405 MeV 1.4%: 0.1426 |
Tc: Technetium Complete table of nuclides |
Tc-99m iōng-tsò hòng-siā sìng tui-tsik khì, ē-tàng thong-kuè i-liâu siat-pī (gamma siòng-ki) teh thé-lāi kiám-tshik tio̍h. 99mTc hui-siông sik-ha̍p tsit-ê kak-sik; in-uī iē huat-siā kong-tsí lîng-liōng uî 140 keV (tsia-ê 8.8 pm kong-tsí ê pho-tn̂g kah thuân-thóng X siā-suànn tsín-tuàn siat-pī huat-siā ê pho-tn̂g tāi-khài sio-kâng); lî-tshiánn i-ê gamma huat-siā puànn-sue-kî iông-ī kiám-tshik ê gamma siā-suànn sī 6.0058 sió-sî (ì-sù sī 93.7% ê Tc teh 24 sió-sî lāi sue-kiám kàu 99Tc). Tông-uī-sòo siong-tuì "té" ê bu̍t-lí puànn-sue-kî kah i 1-kang ê sing-bu̍t puànn-sue-kî (tsiū jîn-luī ua̍h-tāng hām sin-tîn tāi-siā lâi-kóng) ún-tsún sàu-biâu tîng-sū khuài-sok siu-tsi̍p; m̄-koh pó-tshî huān-tsiá tsóng hok-siā po̍k-lōo kē. Kāng-khuán ê ti̍k-sìng hōo tông-uī-sòo bô sik-ha̍p tī-liâu ê iōng-tôo.
Technetium-99m hông huat-hiān sī huê-suân hong-kik Technetium ê sán-bu̍t. Tsit-ê kuè-tîng sán-sing molybdenum-99, tse sī tsi̍t-tsióng kū-iú khah tn̂g ê puànn-sue kî (2.75 kang) ê hòng-siā sìng hi̍k-sòo (radionuclide), i-ê sue-piàn tsì 99mTc. Koh-khah tn̂g ê sue-kiám sî-kan ún-tsún 99Mo hông ūn-sàng kàu i-liâu siat-si, teh hia, 99mTc teh sing-sán ê sî-tsūn uì iūnn-phín tang-tiong the̍h-tshú tshut-lâi. Píng kuè-lâi kóng, 99Mo thong-siông sī-teh kui-ê kok-ka ê tsió-sòo gián-kiù kap tsâi-liāu tshik-tshì hi̍k huán-ìng-tui (nuclear reactor) tang-tiong thong-kuè ko lông-sok iù (高濃縮鈾) ê lia̍t-piàn tsìn-hîng siong-gia̍p huà sing-sán ê.
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