Raws li tib neeg txoj kev nkag siab ntawm nicotine txuas ntxiv zuj zus, ntau thiab ntau tus neeg tau pib ua tib zoo saib rau txoj kev ntawm nicotine extraction. Nicotine yog lub hauv paus organic uas muaj cov qauv hluavtaws ua tiav, thiab nws lub npe tshuaj yog 1-methyl-2- (3-}pyridyl) pyridine.
Raws li cov tshuaj lom tseem ceeb hauv kev haus luam yeeb, nws ua lub luag haujlwm tseem ceeb hauv ntau yam kab mob tshwm sim los ntawm kev haus luam yeeb. Hauv kev lag luam tshuaj, kev tshawb fawb hauv cheeb tsam no tau nthuav dav thiab tob, tab sis nyob rau xyoo tas los no, nrog rau kev tshawb fawb txog cov nqi tshuaj nicotine, nws tau pom tias nws muaj peev xwm kho tau thiab muaj peev xwm kho tau ntau yam kab mob. . Nicotine muaj ntau yam tshuaj muaj txiaj ntsig, xws li txhawb lub hauv nruab nrab paj hlwb, tiv thaiv kev ntxhov siab, tiv thaiv kev nyuaj siab, mob nyem, thiab lwm yam, thiab nicotine yog cov tshuaj tua kab ntsuab uas tau lees paub. Cov khoom muaj txiaj ntsig zoo hauv cov luam yeeb hluav taws xob siv rau kev haus luam yeeb yog nicotine. Nws yog siv rau kev kho mob, kev ua liaj ua teb, zaub mov thiab hluav taws xob. Nyob rau hauv lub neej yav tom ntej, raws li daim ntawv thov teb ntawm nicotine txuas ntxiv nthuav dav, cov thev naus laus zis thev naus laus zis yuav txuas ntxiv hloov kho thiab tsim kho, nqa cov txiaj ntsig kev lag luam thiab kev sib raug zoo rau noob neej. Nyob rau hauv xyoo tas los no, txoj kev rho tawm ntawm nicotine tau txais kev saib xyuas thoob plaws. Muaj ntau txoj hauv kev rau kev rho tawm cov nicotine, uas txoj kev yooj yim dua yog rho nicotine los ntawm luam yeeb. Thaum cov txheej txheem rho tawm, cov nplooj ntawv luam yeeb yuav tsum tau tsau rau hauv dej los yog hnyav, thiab nicotine raug cais los ntawm cov kuab tshuaj extraction lossis distillation.
Kev sim-Kev npaj ntawm nicotine crude extract
Ib qho nyiaj ntawm cov luam yeeb shreds raug tshem tawm hauv dichloromethane, stirred thiab ultrasonically muab rho tawm rau 30 feeb, lim, thiab concentrated los ntawm rotary evaporation kom tau ib tug daj oily kua nicotine crude extract. Qhov no yog siv los ua tus qauv thiab sib cais thiab npaj siv cov kab ua kom huv huv kom tau txais cov tshuaj nicotine ntshiab.