Kev sib txawv ntawm cov ntawv lim ntawv muaj txiaj ntsig thiab quantitative

Lim ntawv yog ib hom kev ua kom pom zoo, daim ntawv xoob, cov kua muaj lub zog ua kom haum. Daim ntawv no yog siv tawm xov xwm tawm los cais tawm los ntawm cov khoom. Tam sim no, daim ntawv tsuas yog muaj kev soj ntsuam ntawm cov ntaub lim, cov khoom siv lim thiab cov chromatography ntawm peb hom kev hloov lim ntawv. Ob lub ntsiab lus ntawm cov ntawv lim dej thiab cov ntawv lim dej yog cov cellulose lim ntawv, thiab tsis siv rau lwm hom lim ntawv xws li iav kua faj siv tshuaj lim. Cov ntawv pov thawj zoo siv rau kev soj ntsuam tshuaj thiab kev cais sib cais. Cov ntawv pov thawj zoo tshaj plaws yog siv rau hauv kev sib tov, ua chloride, sulfate, thiab lwm yam tsis tas yuav suav cov kev kuaj zauv; Quantitative filter paper yog siv rau kev xam kom pom meej ntawm cov zauv, xws li kev txiav txim siab ntawm seem, tsis muaj teeb meem, thiab hais txog, feem ntau ntawm cov ntawv luam lim, tab sis kuj yuav tsum nkag mus rau qhov chaw kub siab rau kev ua haujlwm.

Chromatography qualitative analysis of filter paper chromatography nrog kev ntsuam xyuas ntawm cov ntaub ntawv lim dej yog siv los ua ib qho khoom hauv Chromatographic txoj kev, qhov sib cais ntawm cov khoom siv los ntsuas los ntawm cov chromatography qualitative analysis lim muaj 1 thiab 3, txhua ntawm ob, yog faib ua ceev ceev, nruab nrab ceev thiab qeeb peb. Tsis tas li ntawd: qhov sib txawv ntawm cov ntawv lim dej thiab cov khoom lim tau zoo yog: Cov khoom siv lim dej yog siv rau kev ntsuam xyuas cov tshuaj thiab kev sib cais sib cais; Quantitative filter paper yog siv ntau yam tshuaj ntsuam tsom xam cov qauv tshuaj gravimetric thiab kev ntsuam xyuas sib luag. Cov nyhuv ntawm cov ntawv pov thawj ntau yog siv los lim cov gray uas ntsuas kev sim, qhov hnyav hnyav ntawm txhua daim ntawv lim yog qhov tseeb, thiab cov khoom siv lim yog siv rau kev pom tseeb. Qhov sib txawv ntawm cov ntawv pov thawj ntau thiab cov ntawv pov thawj tsuas yog nyob rau hauv cov nqi ntawm cov ntoo tshauv uas tsim tawm tom qab ashing. Cov ntawv pov thawj zoo tsis tshaj li ntawm 0.13%, cov ntawv pov thawj ntau npaum li cas tsis tshaj 0.0009%. Daim ntawv lim dej tsho dawb yog nws lim, cov av tshauv tsawg dua 0.1mg, qhov nyhav no yuav raug suav ua kom pom zoo nyob hauv kev tshawb xyuas qhov sib npaug. Nco ntsoov tias ob lub ntsiab lus ntawm cov ntawv lim dej thiab cov ntawv lim dej yog cov cellulose lim ntawv, tsis haum rau lwm hom ntawv lim ntawv xws li cov iav lim dej.