Cov khoom

Peb piav qhia txog txoj hauv kev tshiab rau kev tsom xam ntawm theem-sensitive fluorescence emission spectra.Txoj kev no tso cai rau kev daws teeb meem ntawm peb cov khoom sib xyaw siv spectra ntsuas ntawm ib qho kev hloov pauv zaus.Phase-rhiab spectra raug kaw siv ib qho kev hloov pauv zaus, ntawm ntau qhov kev ntsuas ntsuas theem kaum.Nws tsis yog tsim nyog los suppress ib qho kev tivthaiv.Cov spectra yog siv los kwv yees lub neej ntawm cov khoom siv thiab cov fractional intensities tsis tu ncua uas siv cov txheej txheem kev soj ntsuam tsawg kawg-squares.Qhov tsuas yog qhov yuav tsum tau muaj rau kev tsom xam yog kev paub txog qhov ruaj khov-xeev spectra ntawm tus kheej cov khoom.Cov txheej txheem no tso cai rau kev daws teeb meem ntawm ob lub ntsiab lus sib xyaw ntawm 9-methylanthracene (4.5 ns) thiab 9,10-diphenylanthracene (5.9 ns).Nws yuav tsum raug sau tseg tias kev daws teeb meem ntawm ob lub neej uas sib txawv tsuas yog 30% yog ib txoj haujlwm nyuaj.Tsis tas li ntawd, peb tau daws qhov sib xyaw ua ke nrog peb lub neej uas sib txawv plaub npaug: p-bis[2-(5-phenyloxazolyl)] benzene (1.3 ns), 9-methylanthracene (4.5 ns), thiab 9,10-diphenylanthracene (5.9). ns).Qhov yooj yim, cov txheej txheem siv cov khoom lag luam muaj nyob ruaj khov theem fluorometer.