Cov txheej txheem:
Video: Cov tshuaj xoom xaj yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Xoom xaj : tus nqi tas li ntawm tshuaj raug tshem tawm hauv ib lub sijhawm. Piv txwv li, 10 mg ntawm a tshuaj tej zaum tshem tawm ib teev, qhov kev tshem tawm no tsis tu ncua thiab yog ywj siab ntawm tag nrho tshuaj concentration hauv plasma. Xoom xaj kinetics tsis tshua muaj tshem tawm mechanisms yog saturable.
Tom qab ntawd, qhov sib txawv ntawm cov tshuaj xoom xaj thiab cov tshuaj thawj zaug yog dab tsi?
Qhov tseem ceeb qhov sib txawv ntawm xoom thiab ua ntej - xaj kinetics yog lawv tshem tawm tus nqi piv rau tag nrho cov ntshav plasma concentration. Zero - xaj kinetics tau raug tshem tawm tas li tsis hais txog ntawm cov ntshav plasma concentration, tom qab ib theem kev tshem tawm raws li qhov system ua kom txaus.
Tsis tas li ntawd, cov tshuaj dab tsi ua raws li thawj qhov kev txiav txim kinetics? Tus nqi ntawm kev tshem tawm yog tas mus li thiab tsis nyob ntawm lossis txawv nrog kev noj tshuaj lossis ntshav plasma concentration ntawm cov tshuaj.
- Phenytoin, Phenylbutazone.
- Warfarin.
- Heparin.
- Ethanol.
- Aspirin.
- Theophylline, Tolbutamide.
- Salicylates.
Ib yam li ntawd, tib neeg nug, yam tshuaj twg yog xoom xaj kinetics?
Daim ntawv teev cov tshuaj tom qab xoom-order kinetics
- Phenytoin, Phenylbutazone.
- Warfarin.
- Heparin.
- Ethanol.
- Aspirin thiab lwm yam salicylates.
- Theophylline, Tolbutamide.
- Salicylates.
Puas yog phenytoin xoom xaj kinetics?
Phenytoin ua raws nonlinear (los yog xoom - xaj ) kinetics nyob rau hauv kev kho mob concentrations, vim hais tias tus nqi ntawm cov metabolism yog ze rau lub siab tshaj plaws muaj peev xwm ntawm cov enzymes koom tes. Hauv nonlinear kinetics , clearance thiab ib nrab-lub neej hloov pauv nrog plasma concentration.
Pom zoo:
Tus qauv ntawm xoom xaj tshuaj tiv thaiv yog dab tsi?
2 muaj daim ntawv ntawm algebraic equation rau ib txoj kab ncaj nraim, y = mx + b, nrog y = [A], mx = − kt, thiab b = [A] 0.) Hauv cov tshuaj tiv thaiv zeroth, tus nqi tas li yuav tsum muaj tib lub units raws li cov tshuaj tiv thaiv tus nqi, feem ntau moles ib liter ib ob
Dab tsi yog ib nrab lub neej ntawm xoom xaj tshuaj tiv thaiv?
Ib nrab-lub neej ntawm cov tshuaj tiv thaiv yog lub sij hawm yuav tsum tau txo tus nqi ntawm ib tug muab reactant los ntawm ib nrab. Qhov ib nrab-lub neej ntawm cov tshuaj tiv thaiv xoom yuav txo qis vim qhov pib concentration ntawm cov reactant hauv cov tshuaj tiv thaiv txo qis
Dab tsi yog xoom xoom thiab vim li cas thiaj hu ua li ntawd?
Tsis muaj xoom yog - 273.15 degrees Celsius, -459.67 degrees Fahrenheit, thiab 0 Kelvin. Yog li hu ua vim nws yog lub ntsiab lus ntawm qhov tseem ceeb ntawm cov xwm txheej muaj qhov kev vibrational tsawg tsawg, khaws cia tsuas yog quantum mechanical, xoom-point zog-induced particle suab
Dab tsi yog tshuaj lom neeg cov tshuaj tiv thaiv thiab cov tshuaj tiv thaiv lub cev?
Qhov sib txawv ntawm cov tshuaj tiv thaiv lub cev thiab cov tshuaj tiv thaiv tshuaj yog muaj pes tsawg leeg. Hauv cov tshuaj tiv thaiv tshuaj, muaj kev hloov pauv ntawm cov tshuaj hauv nqe lus nug; nyob rau hauv ib qho kev hloov ntawm lub cev muaj qhov sib txawv ntawm qhov tsos, tsis hnov tsw, los yog cov duab yooj yim ntawm cov qauv ntawm cov teeb meem yam tsis muaj kev hloov pauv hauv cov ntsiab lus
Dab tsi yog tus nqi lees paub ntawm tus xoom xoom?
Los ntawm kev pom zoo thoob ntiaj teb, xoom xoom raug txhais raws li qhov tseeb; 0 K ntawm Kelvin nplai, uas yog qhov ntsuas kub ntawm qhov ntsuas kub (qhov tseeb); thiab -273.15 degrees Celsius ntawm qhov ntsuas Celsius