13 dioxin detection

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13 dioxin detection 戴戴戴 : 戴戴戴戴 戴戴戴戴戴戴戴戴戴 戴戴戴戴戴戴戴戴

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13 dioxin detection. 戴奧辛 : 世紀之毒 主要由燃燒行為產生 包括廢棄物焚化等. 戴奧辛 (dioxin). 戴奧辛 : 兩個氧原子聯結一對苯環類化合物之統稱, 因氯化物及鍵結位置之不同,總計有約 210 種不同的異構物 包括 75 種多氯二聯苯戴奧辛( polychlorinated dibenzo-ρ-dioxins , PCDDs ) 及 135 種多氯二聯苯呋喃 ( polychlorinated dibenzofurans , PCDFs 此 210 個同類物中共有 17 個具有毒性 - PowerPoint PPT Presentation

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  • 13 dioxin detection:

  • (dioxin): 210 75 polychlorinated dibenzo--dioxinsPCDDs135 polychlorinated dibenzofuransPCDFs 210172,3,7,8-(2,3,7,8-TCDD)

    209(PCB)12, (dioxin-like congener PCB)

  • 2,3,7,8-(2,3,7,8-TCDD)

  • toxic equivalent quantitiesTEQ

    2,3,7,8-TCDD toxic equivalent quantities

    toxic equivalent factorTEFPCDDs 2,3,7,8-TCDD PCDDs PCDFs TEF TEQTEQ

  • Toxic Equivalent Factors

  • /HRGC/HRMS2~3

  • Chemically Activated Luciferase Expression CALUX

    CALUX

    H4IIE rat-hepatomaH4IIEluciferase geneXRE

    CALUX 3~4

  • Luciferase is a generic term for the class of oxidative enzymes used in bioluminescence.One famous example is the firefly luciferase.In luminescent reactions, light is produced by the oxidation of a luciferin

    luciferin + O2 oxyluciferin + light

    luciferin + ATP luciferyl adenylate + PPi luciferyl adenylate + O2 oxyluciferin + AMP + light

  • Enzyme-linked immunosorbentassayELISA Electrochemical biosensor Surface plasmon resonance immunosensor Piezoelectric quartz crystal microbalancebiosensor2,3,7,8-TCDD AhR-ARNT

  • dioxin binding peptidepeptide library Combinatorial Chemistry

  • Combinatorial ChemistryMerrifield: the solid-phase synthesis of peptides.

    Furka, 1988 : divide-couple-recombine, mixing-divide-coupleHoughten, 1991 : mesh packets (Nature), positional scanning