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Technetium-99m

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Technetium-99m, 99mTc
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) 6.0067 h[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

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.

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.

  1. "99mTc tables" (PDF). Nucleide.org. Laboratoire National Henri Becquerel. 2012-01-17. goân-loē-iông (PDF) tī 2016-08-04 hőng khó͘-pih. 23 May 2012 khòaⁿ--ê. 

Tsham-kho bûn-hiàn

[siu-kái | kái goân-sí-bé]

Iân-sin ua̍t-to̍k

[siu-kái | kái goân-sí-bé]
  • Cholescintigraphy
  • Isotopes of technetium
  • Transient equilibrium

Guap-oo liân-kiat

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Wikimedia Commons téng ê siong-koan tóng-àn: Technetium-99m