Hais txog cov luam yeeb, thawj qhov kev xav yuav yognicotine, ib qho ntawm nws cov khoom xyaw. Ntxiv mus, qee tus neeg sib piv nicotine nrog luam yeeb sib cav tias "kev haus luam yeeb ua rau muaj kev phom sij rau kev noj qab haus huv" vim yog nicotine hauv luam yeeb "Nicotine muaj tshuaj lom heev"? "Nicotine "hauv ib pob luam yeeb tuaj yeem tua tau ib tug nyuj"? "Ceeb toom kom xaiv cov zaub uas muaj nicotine"...? Txhua yam kev xav txawv.
Tiag tiag mas, cov lus no txawv ntawm kev tshawb fawb. Nicotine yog ib yam alkaloid uas tsim los ntawm qee cov nroj tsuag Solanaceae. Cov nroj tsuag Solanaceae tsis yog tsuas yog muaj cov luam yeeb xwb, tab sis kuj muaj kua txob, txiv lws suav, qos yaj ywm, eggplant lossis petunia. Luam yeeb yog ib qho ntawm cov nroj tsuag uas muaj nicotine ntau tshaj plaws. Tam sim no, nicotine kuj siv rau hauv cov luam yeeb tsis muaj pa luam yeeb, cov luam yeeb hluav taws xob, thiab kev kho mob hloov nicotine.
Puas yog nicotine ua rau mob qog noj ntshav? Thaum tib neeg haus luam yeeb, tsawg kawg yog 69 yam tshuaj lom neeg uas muaj nyob hauv cov luam yeeb, xws li benzopyrene, ua rau lub cev puas tsuaj tom qab nkag mus rau hauv tib neeg lub cev. Cov tshuaj lom neeg no tsis suav nrog nicotine. Nicotine tsuas yog cov khoom tseem ceeb ntawm cov luam yeeb uas ua rau quav tshuaj xwb. Daim ntawv qhia txog Tus Thawj Coj Saib Xyuas Kev Noj Qab Haus Huv hauv Tebchaws Meskas xyoo 2014 tau taw qhia tias tam sim no tsis muaj pov thawj tias nicotine ua rau mob qog noj ntshav. Lub koom haum FDA hauv Tebchaws Meskas kuj tau tshaj tawm meej meej hauv xyoo 2017 tias nicotine nws tus kheej tsis muaj kev sib raug zoo nrog mob qog noj ntshav.
Cov kev tshawb fawb kho mob tam sim no cuam tshuam nrog nicotine txhawb nqa tias nicotine tsis ua rau muaj mob qog noj ntshav hauv tib neeg.
Puas yog kev haus luam yeeb ua rau muaj kev lom nicotine? Thaum tib neeg haus luam yeeb, nicotine kuj raug nqus tib lub sijhawm. Cov nicotine uas nqus tau raug xa mus rau hauv cov ntshav thiab hla dhau cov ntshav-lub hlwb thaiv. Nws tsuas yog siv sijhawm 10 vib nas this xwb kom mus txog lub hlwb, ua rau lub hlwb tsim cov dopamine zoo siab thiab zoo siab thiab lwm yam Neurotransmitters. Hais lus tseeb, nicotine muaj kev quav yeeb quav tshuaj thiab kev vam khom. Kev quav luam yeeb yog los ntawm nicotine ntau heev. Qhov lom ntawm nicotine yeej nyob ntawm ntau yam, suav nrog kev noj tshuaj, lub sijhawm, zaus, txoj kev raug, hom khoom nicotine thiab qhov sib txawv ntawm tus kheej. Cov koob tshuaj ntawm nicotine uas haus los ntawm kev haus luam yeeb yog qhov muaj kev nyab xeeb rau tib neeg lub cev, thiab nws nyuaj rau ua tiav cov koob tshuaj uas xav tau los tsim cov teebmeem lom, thiab ib nrab ntawm lub neej ntawm nicotine hauv lub cev luv heev, tsuas yog 2 txog 3 teev, uas ua rau cov nicotine uas nqus tau hauv lub sijhawm luv luv Nws yuav raug metabolized.
Puas yog nicotine ua teeb meem rau tus menyuam hauv plab? Nicotine yooj yim hla lub placental barrier. Qhov concentration ntawm nicotine hauv cov ntshav ntawm tus menyuam hauv plab (30 feeb tom qab raug) yog 15% siab dua li cov ntshav ntawm niam, thiab qhov concentration ntawm nicotine hauv cov kua amniotic yog 80% siab dua li cov ntshav ntawm niam. Qhov kev raug no yuav ua rau lub hlwb ntawm tus menyuam hauv plab siab. Qhov theem ntawm nicotine, uas ua rau muaj ntau yam kev hloov pauv hauv lub paj hlwb.
Xyoo 2014, "Tus Thawj Coj Saib Xyuas Kev Noj Qab Haus Huv" hauv Tebchaws Meskas tau taw qhia tias tam sim no muaj pov thawj txaus tias kev haus luam yeeb nicotine tuaj yeem muaj kev cuam tshuam tsis zoo rau kev noj qab haus huv ntawm tus menyuam hauv plab, xws li yug ntxov lossis tuag hauv plab. Muaj ntau txoj kev tshawb fawb tau qhia tias nicotine muaj qee yam cuam tshuam rau kev ua tsis zoo ntawm tus menyuam hauv plab, kev loj hlob ntawm tus menyuam hauv plab tsis zoo, kev tuag thaum yug menyuam thiab kev tuag sai sai ntawm tus menyuam mos. Kev haus luam yeeb nicotine ua ntej yug menyuam tuaj yeem ua rau lub ntsws ntawm tus menyuam hauv plab loj hlob tsis zoo, ua rau muaj kev pheej hmoo ntawm kev mob hawb pob thiab mob ntsws ntev. Kev haus luam yeeb nicotine ntawm niam txiv tuaj yeem ua rau cov menyuam yaus quav yeeb quav tshuaj nicotine ntau ntxiv thiab cuam tshuam rau tus cwj pwm ntawm cov menyuam yaus.
Kuv puas noj tau zaub uas muaj nicotine? Ib txhia neeg txhawj xeeb tias kev noj cov zaub uas muaj nicotine yuav cuam tshuam rau lub cev. Qhov tseeb, tsis tas yuav txhawj. Ntawm ib sab tes, cov nicotine hauv cov zaub no tsawg heev, feem ntau yog 3 ~ 100μg / kg. Yog li cov nicotine me me yog qhov tsis tseem ceeb kiag li. Txawm tias nws nyoos lossis siav, nws yuav tsis cuam tshuam rau tib neeg lub cev.
Ntawm qhov tod tes, nicotine hauv qhov ncauj nyuaj rau nqus los ntawm lub plab, vim tias qhov chaw acidic ntawm lub plab yuav ua rau ntau nicotine hauv lub xeev ionized, uas tsis yooj yim rau nqus los ntawm mucosal epithelium. Txawm tias nicotine raug nqus mus rau hauv cov ntshav los ntawm txoj hnyuv plab, nws yuav rov qab mus rau lub siab los ntawm cov hlab ntsha portal rau kev ua haujlwm, uas ua rau cov ntshav qis dua ntawm nicotine tom qab nkag mus rau hauv lub cev thiab txo qis ntawm nicotine bioavailability. Yog li ntawd, pej xeem tsis tas yuav tham txog kev hloov xim ntawm nicotine hauv zaub, thiab tsis tas yuav txhawj txog nws qhov kev hem thawj rau kev noj qab haus huv.
Kev kho mob hloov nicotine puas muaj kev nyab xeeb? Kev kho mob hloov nicotine yog ib hom kev npaj nicotine tsawg uas tsis yog haus luam yeeb uas hloov nicotine tau los ntawm kev haus luam yeeb thiab pab cov neeg haus luam yeeb kov yeej lawv lub cev thiab lub hlwb kev vam khom rau kev haus luam yeeb. Nws tau siv thaum ntxov li xyoo 1980s Yu tso kev haus luam yeeb. Muaj ntau tus neeg txhawj xeeb txog seb kev kho mob hloov nicotine puas tuaj yeem paub tseeb.
Kev kho mob hloov alkaline ua thawj kab tshuaj tso kev haus luam yeeb tau ntau dua ob npaug ntawm qhov ua tiav ntawm kev tso kev haus luam yeeb.
Kev nyab xeeb ntawmnicotine kev kho mob hloov pauv tau raug lees paub lawm, thiab nws tau raug ntxiv rau hauv Lub Koom Haum Kev Noj Qab Haus Huv Ntiaj Teb Cov Tshuaj Tseem Ceeb, thiab tau lees paub thiab pom zoo los ntawm Lub Koom Haum Kev Noj Qab Haus Huv Ntiaj Teb. Kev tso kev haus luam yeeb tuaj yeem siv tau nrog kev ntseeg siab.
Peb muab khoomNicotine ntshiab 99.9%,Nicotine Base, Nicotine ntsev kua,Nicotine ntsev hmoov,Cov Nicotine Ua Los Ntawm Tshuaj, zoo siab nrog tus nqi sib tw.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-17-2021