Rau nrawm nrawm tshem tawm?

Cov txheej txheem:

Rau nrawm nrawm tshem tawm?
Rau nrawm nrawm tshem tawm?
Anonim

Accelerated solvent extraction yog ib txoj hauv kev rau rho tawm ntau yam tshuaj los ntawm cov khoom nyuaj lossis semisolid qauv matrix.

Yuav ua li cas kom tshem tawm cov kuab tshuaj zoo dua?

Tsub yog qhov tseem ceeb tshaj plaws uas siv rau hauv kev ceev cov kuab tshuaj extraction. Raws li qhov kub thiab txias, qhov viscosity ntawm cov kuab tshuaj yog txo, yog li ua rau nws muaj peev xwm ntub cov matrix thiab solubilize lub hom phiaj analytes.

Cov kuab tshuaj twg yog siv rau hauv cov kuab tshuaj rho tawm?

nquag siv cov kuab tshuaj xws li ethyl acetate (8.1%), diethyl ether (6.9%), dichloromethane (1.3%) thiab chloroform (0.8%) yaj mus txog 10% hauv dej. Dej kuj yaj hauv cov kuab tshuaj organic: ethyl acetate (3%), diethyl ether (1.4%), dichloromethane (0.25%) thiab chloroform (0.056%).

Yuav ua li cas thiaj ua tau cov kuab tshuaj tshem tawm ntau dua?

Percolation yog qhov ua tau zoo dua li maceration vim nws yog cov txheej txheem txuas ntxiv uas cov kuab tshuaj saturated tas li raug hloov los ntawm cov kuab tshuaj tshiab. Zhang et al. piv cov percolation thiab refluxing extraction txoj kev extract Undaria pinnatifida.

Dab tsi yog qhov tsis zoo ntawm cov kuab tshuaj rho tawm?

Qhov tsis zoo ntawm cov kuab tshuaj rho tawm yog, ua ntej, cov kuab tshuaj kuj tseem yuav yaj cov khoom lag luam pyrolysis tsis xav tau, cov ntaub ntawv matrix, thiab lwm yam tshuaj, qee qhov yuav cuam tshuam nrog kev tshuaj xyuas tom ntej thiab thib ob,tias evaporation ntawm cov kuab tshuaj kuj yuav ua rau evaporation ntawm ib co ntawm volatile Cheebtsam ntawm …

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