Fluorescence tshwm sim thaum ib lub atom lossis molecules so los ntawm kev vibrational so rau nws hauv av tom qab tau hluav taws xob zoo siab. Qhov tshwj xeeb zaus ntawm excitation thiab emission yog nyob ntawm lub molecule los yog atom.
hom molecules fluoresce dab tsi?
Non-protein organic fluorophores belongs rau cov tsev neeg tshuaj loj: Xanthene derivatives: fluorescein, rhodamine, Oregon ntsuab, eosin, thiab Texas liab. Cyanine derivatives: cyanine, indocarbocyanine, oxacarbocyanine, thiacarbocyanine, thiab merocyanine.
fluorescence tshwm sim li cas?
Fluorescence tshwm sim thaum qhov zoo siab molecule, atom, lossis nanostructure, so kom qis zog rau lub xeev (feem ntau hauv av) los ntawm emission ntawm photon yam tsis muaj kev hloov hauv electron spin Thaum lub xeev thawj zaug thiab zaum kawg muaj ntau qhov sib txawv (spin), qhov tshwm sim yog hu ua phosphorescence.
Molecular fluorescence yog dab tsi?
Molecular fluorescence yog qhov pom kev tawm los ntawm cov molecules uas tau zoo siab rau qib zog siab dua los ntawm kev nqus hluav taws xob hluav taws xob… kua chromatography.
Dab tsi ua rau electron fluoresce?
Fluorescence tshwm sim thaum cov hluav taws xob rov qab los ntawm lub xeev zoo siab mus rau hauv av Tab sis nyob rau hauv qee cov molecules cov spin ntawm cov electrons zoo siab tuaj yeem hloov mus rau lub xeev triplet hauv cov txheej txheem. hu ua inter system crossing. Cov electrons no poob lub zog kom txog thaum lawv nyob hauv lub xeev triplet.
