Video: Ib co piv txwv ntawm analytical chemistry yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ib txhia ntawm tus feem ntau-ntau ntsib hauv analytical chemistry yog: qauv : tus khoom ntawm tus analytical txheej txheem (rau piv txwv : ntshav qauv ); tshuaj ntsuam xyuas: tus yam khoom uas nyiam tus tsom xam (rau piv txwv hemoglobin hauv cov ntshav;
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog piv txwv ntawm chemistry analytical?
Analytical chemistry muaj cov ntawv thov suav nrog hauv kev tshawb fawb txog kev tshawb fawb, bioanalysis, kev soj ntsuam kuaj mob, kev txheeb xyuas ib puag ncig, thiab kev tshuaj xyuas cov ntaub ntawv. Txawm tias muaj tsawg piv txwv ntawm cov tshuab xws li kev sib tw nrog cov txheej txheem kev tshuaj ntsuam xyuas, cov txiaj ntsig muaj peev xwm suav nrog qhov loj / txav tau yooj yim, nrawm, thiab tus nqi.
Tsis tas li ntawd, analytical chemistry thiab nws cov kev siv yog dab tsi? Analytical chemistry yog tus ceg ntawm chemistry uas deals nrog tus tsom xam ntawm cov khoom sib txawv. Nws koom nrog tus kev cais, kev txheeb xyuas, thiab tus kom muaj nuj nqis. Nws koom nrog tus siv cov txheej txheem classical nrog rau cov txheej txheem niaj hnub nrog tus siv cov cuab yeej scientific.
Tsuas yog li ntawd, analytical chemistry txhais li cas?
Cov txhais ntawm analytical chemistry isexamineing cov ntaub ntawv los ntawm kev cais lawv mus rau hauv lawv cov Cheebtsam thiab txheeb xyuas txhua tus thiab ntau npaum li cas ntawm txhua tus. Siv massspectrometry los ntsuas cov khoom siv hluav taws xob los txiav txim qhov muaj pes tsawg leeg ntawm cov khoom yog ib qho piv txwv ntawm kev tsom xam - chemistry.
Cov txheej txheem hauv analytical chemistry yog dab tsi?
ntub chemistry suav nrog cov txheej txheem xws li achromatography, titration, tshuaj tshuaj tiv thaiv, thiab nplaim taws txoj kev . Qhov ntsuas txoj kev suav nrog siv cov cuab yeej niaj hnub xws li spectrometers (xws li pom lub teeb, UVlight, huab hwm coj, infrared, NMR, thiab ntau lwm yam) thiab chromatographers xws li HPLC thiab GC.
Pom zoo:
Dab tsi yog qhov sib piv thiab piv txwv?
Inverse proportion. Inverse proportions tshwm sim thaum ib tus nqi nce thiab qhov txo qis. Piv txwv li, ntau tus neeg ua haujlwm ntawm txoj haujlwm yuav txo lub sijhawm los ua kom tiav cov haujlwm. Lawv yog inversely proportional
Thaum lub ntim ntawm ib qho piv txwv ntawm cov pa roj yog txo lub siab ntawm cov qauv ntawm cov pa roj?
Kev txo qis Cov pa roj sib xyaw txoj cai hais tias lub siab ntawm cov pa roj yog inversely cuam tshuam nrog lub ntim thiab ncaj qha ntsig txog qhov kub thiab txias. Yog tias qhov kub thiab txias yog nyob tas li, qhov sib npaug raug txo rau Boyle txoj cai. Yog li ntawd, yog tias koj txo qhov siab ntawm cov roj av tas li, nws qhov ntim yuav nce ntxiv
Dab tsi yog txhais los ntawm lub sij hawm dissociation thiab dab tsi yog ib qho piv txwv ntawm cov khoom uas dissociates?
Dissociation, nyob rau hauv chemistry, sib cais ntawm ib yam khoom mus rau hauv atoms los yog ions. Thermal dissociation tshwm sim ntawm qhov kub thiab txias. Piv txwv li, hydrogen molecules (H 2) dissociate rau hauv atoms (H) ntawm kub heev; ntawm 5,000 ° K txog 95% ntawm cov molecules hauv cov qauv ntawm hydrogen yog dissociated rau hauv atoms
Dab tsi yog qhov txawv ntawm instantaneous thiab nruab nrab ceev dab tsi yog qhov piv txwv loj tshaj ntawm kev ceev ceev?
Qhov nruab nrab ceev yog qhov ceev nruab nrab ntawm lub sijhawm. Instantaneous ceev yuav yog qhov ceev txhua qhov muab tam sim ntawd hauv lub sijhawm ntawd, ntsuas nrog lub ntsuas ntsuas lub sijhawm
Dab tsi yog qhov txawv ntawm microevolution thiab macroevolution Dab tsi yog qee qhov piv txwv ntawm txhua tus?
Microevolution vs. Macroevolution. Piv txwv ntawm cov kev hloov microevolutionary no yuav suav nrog kev hloov ntawm hom xim lossis loj. Macroevolution, piv txwv li, yog siv los hais txog kev hloov pauv ntawm cov kab mob uas tseem ceeb txaus uas, dhau sijhawm, cov kab mob tshiab yuav raug suav tias yog hom tshiab nkaus xwb