EPR-60
Electron paramagnetic resonance (EPR) o se ituaiga tekinolosi resonance maneta na afua mai i le taimi faʻamaneta o eletise le faʻaogaina. E mafai ona faʻaaogaina e faʻamaonia ma faʻatusatusaina le faʻaogaina o electrons o loʻo i totonu o atoms poʻo molelaʻau o mea, ma suʻesuʻe i latou. O uiga fa'atulagaina o le si'osi'omaga si'osi'omaga. Mo radical free, o le orbital magnetic moment e toetoe lava a leai se aoga, ma o le tele o le aofaʻi o le taimi mageta (i luga aʻe o le 99%) e saofagā i le eletise eletise, o lea e taʻua ai le electron paramagnetic resonance o le "electron spin resonance" (ESR).
Electron paramagnetic resonance na maua muamua e le Soviet physicist E·K·Zavois i le 1944 mai le MnCl2, CuCl2 ma isi masima paramagnetic. Na faʻaaoga muamua e fomaʻi lenei metotia e suʻesuʻe ai le fausaga eletise, fausaga tioata, taimi dipole, ma le fausaga mole o nisi atoma lavelave. Faʻavae i luga o faʻaiʻuga o le electron paramagnetic resonance measurements, na faʻamalamalamaina e le au kemisi faʻamaʻi faʻamaʻi ma tufatufa eletise eletise i faʻalapotopotoga faʻapitoa lavelave, faʻapea foʻi ma le tele o faʻafitauli e fesoʻotaʻi ma le gaioiga o le tali. American B. Commoner et al. faʻafeiloaʻi le tekinolosi resonance electron paramagnetic i le fanua o le biology mo le taimi muamua i le 1954. Na latou matauina le i ai o radical free i nisi o laau ma meaola. Talu mai le 1960s, ona o le faʻaauau pea o le faʻaleleia o meafaifaʻaili ma le faʻaauauina o le faʻafouina o tekonolosi, o le eletise paramagnetic resonance tekinolosi ua faʻaaogaina i le fisiki, semiconductor, kemisi faʻalaʻau, kemisi lavelave, kemisi radiation, kemisi kemisi, kemisi o le gataifale, catalysts, biology, ma biology. Ua fa'aaogaina lautele i le tele o matā'upu e pei o kemisi, vaila'au, fa'asaienisi o le si'osi'omaga, ma su'esu'ega fa'afanua.
E masani ona faʻaaogaina mo le suʻesuʻeina o radical free ma paramagnetic metal ions ma a latou mea faʻapipiʻi e maua ai faʻamatalaga ma faʻamatalaga. Mo se faʻataʻitaʻiga: fuaina o le faʻaogaina o le maneta o paramagnets, suʻesuʻega o ata manifinifi mageta, faʻatautaia eletise i metals poʻo semiconductor, o nisi faʻaletonu o le lattice i le lotoifale i solids, faʻaleagaina faʻavevela ma le faʻaliliuina o le radiation, faʻavevela ultraviolet puupuu faʻasaʻo fualaʻau fualaʻau fualaʻau O le natura o le eletise. faiga tali, le amio a radicals saoloto i corrosion, le fausaga o uʻamea lavelave i le faamaopoopoina kemisi, le mana saturation point o lauulu tagata radicals saoloto, le sootaga i le va radicals saoloto i aano o sela ma fa'ama'i, ma le faiga o le fa'aleagaina o le si'osi'omaga.
1, tulaga maneta fanua: 0 ~ 7000Gauss faifai pea fetuutuunai
2. Fa'alava ulu pou: 60mm
3, auala fa'alili: fa'afefe vai
4, mamafa atoa: <500kg
E mafai ona faʻapipiʻiina e tusa ai ma manaʻoga o tagata faʻatau