Kev kuaj kom haus cawv yog qhov tseem ceeb hauv kev nyab xeeb rau pej xeem, kev kuaj mob, thiab kev tsim khoom lag luam. Qhov tseeb thiab kev ntseeg tau ntawm nws nrhiav tau kev txiav txim siab ncaj qha cuam tshuam thiab kev txiav txim siab thiab ua tiav hauv cov teb ntsig. Nrog kev nce qib ntawm kev tshawb fawb thiab thev naus laus zis, cov qauv siv hluavtaws rau kev kuaj kom haus cawv tau tas li tau ua kom zoo. Los ntawm cov tshuaj lom neeg ua yeeb yam tshuaj pleev xim rau cov kev kuaj thev naus laus zis niaj hnub no tau nce zuj zus thiab muaj tseeb. Kab lus no yuav qhia cov txheej txheem tseem ceeb rau kev siv tau haus cawv, tshuaj xyuas lawv cov ntsiab cai, cov txuj ci, thiab cov tswv yim thov cov xwm txheej.
Tshuaj lom neeg Colorimetric cov hau kev: Cov kab hluavtaws hluavtaws classic
Tshuaj lom neeg Colorimetric txoj kev yog ib qho ntawm cov txheej txheem hluavtaws ntxov tshaj plaws rau kev kuaj kom haus cawv. Lawv lub ntsiab cai tseem ceeb yog cov tshuaj lom zem tshwj xeeb nrog dej cawv los tsim cov xim kev haus dej haus cawv, tso cai rau kev haus luam yeeb los ntawm kev pom ntawm kev tshuaj xyuas lossis ntsuas. Piv txwv li, poov tshuaj Dichromate (K₂CRORO₇) reacts nrog ethanol nyob rau hauv potassium dichromate (K₂CR₂o₇) rau cov khoom siv hluav taws xob chromium) lit. Cov xim siv xim yog sib npaug nrog cov ntsiab lus cawv. Txoj kev no yooj yim rau synthesize thiab qis {5} Tus nqi}} tus nqi, ua rau nws siv dav hauv theem ntawm kev ntsuas pa thawj zaug ntawm cov pa roj teeb.
Txawm li cas los xij, kev txwv ntawm cov qauv tshuaj lom neeg suav nrog kev cuam tshuam nrog ib puag ncig (xws li cov av noo) thiab cov av noo) thiab cov av noo Yog li, cov kws tshawb nrhiav tau txhim kho qhov tseeb thiab anti- kev sib cuam tshuam ntawm cov reagent ntawm Nanocatalyts) lossis sib txuas nrog cov txuj ci tsom xam.
Enzymatic txoj kev: txoj kev biosylthictic
Cov txheej txheem Enzyymatic siv cov kev ua haujlwm ntawm cov roj ntsha xws li cov roj hmab qhuav dej (ADH) los ua kom zoo li etetaldehyde, thaum ua ib txhij puas txo cov coenzyme nad⁺ rau nadh. Cawv Cawv tuaj yeem raug kaw tsis ncaj los ntawm kev ntsuas qhov kev hloov pauv ntawm Nadh ntawm lub nthwv dej tshwj xeeb (xws li 340 nm). Hom qauv no, uas nws txoj kev hluavtaws hluav taws xob yog nce raws roj ntsha, yog qhov pheej hmoo ntawm tus ntoo khaub lig {3} Ua rau cov ntawv thov tshuaj tua kab mob kom haum).
Txhawm rau txhim kho enzyme ruaj thiab cov tshuaj tiv thaiv kev ua haujlwm tau muab cov khoom siv protzymes (xws li imperostable adhymes), xws li cov khoom siv cab) los ntawm cov khoom siv cab kuj), txuas ntxiv rau cov khoom lag luam cable (xws li sib nqus Tsis tas li ntawd, txoj kev sib txuam nrog cov txheej txheem sib xyaw tuaj yeem sib xyaw nrog cov sensofochemical rau tiag- lub sijhawm thiab kev soj ntsuam.
Electrochemical Txuj Ci: Niaj Hnub Hluav Taws Xob Niaj Hnub No
Electrochemical Sensors tam sim no yog cov khoom siv hluavtaws tseem ceeb rau kev kuaj kom haus cawv. Lawv siv peb {- electrode system muaj kev ua haujlwm electrode (xws li platinum lossis kub), ib qho kev siv electrode, thiab cov kev sib txuas hluav taws xob. Cov tshuaj tiv thaiv redebe ntawm cov hluav taws xob ua rau cov teeb liab tam sim no, nrog lub teeb liab lub zog tawm nrog kev haus cawv. Cov txheej txheem tseem ceeb ntawm cov sensors dag nyob rau hauv kev ua kom zoo tshaj plaws cov ntaub ntawv electrode thiab tsim rau kev tiv thaiv kev cuam tshuam los ntawm cov sulfides lossis cov organic vapors).
Nyob rau hauv xyoo tsis ntev los no, kev qhia ntawm nanomaterials (xws li carbon nanotubes thiab graphene) tau txhim kho cov rhiab thiab kev teb ceev ntawm cov sensors. Piv txwv li, cov khoom siv ntawm functionalized graphene- Cov khoom siv tau txwv tsis pub muaj kev txwv tsis pub muaj kev lag luam tawg kev lag luam thiab forensic cim tau. Tsis tas li ntawd, kev sib koom ua ke ntawm cov hluav taws xob hloov uas tau hloov cov khoom siv tau zoo heev Kev txhim kho cov khoom siv los haus dej caw kom tsim nyog rau kev kuaj xyuas lub vev xaib.
Kev Tshawb Xyuas Spectroscopic: Tsis -} Kev Txiaj Ntsig Zog
Cov hau kev tsom xam hluav taws xob (xws li kev pom spectroscopy thiab Raman spectroscopy) Cov qauv hluavtaws cia siab rau siab - precision optical thiab algorithmic qauv. Piv txwv li, Fourier Transform Infrared Spectroscopy (FTIR) tuaj yeem soj ntsuam cov c - ncab co ncov ntawm ~ PEXT. This technique offers the advantages of reagent-free and simultaneous multi-component detection, but the equipment is relatively expensive and is primarily used in laboratory research or high-end testing scenarios.
Txhawm rau txo tus nqi thiab txhim kho cov kws tshawb fawb tau txhawb nqa daim ntawv thov kev kuaj xyuas cov miniaticizing spectral) lossis siv tshuab kawm algorithms rau kev paub txog kev txhais tau zoo.
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Cov qauv hluav taws xob rau kev kuaj kom haus cawv tau loj hlob hauv kev sib txawv, xws li los ntawm cov tshuaj pleev xim classic los txiav {} {edge edgeaterialsS thiab Artificial txawj ntse thev naus laus zis. Txhua tus qauv ua kom zoo dua rhiab rhiab rhiab rhiab rhiab, tus nqi, thiab yooj yim ntawm kev siv rau cov xwm txheej tshwj xeeb. Nyob rau yav tom ntej, nrog kev sib koom ua ke ntawm cov kev siv hluav taws xob ua ke ntawm cov khoom siv hauv internet, muab cov ntaub ntawv sib cais, muab cov kev tswj hwm kev nyab xeeb ntxiv rau pej xeem kev nyab xeeb thiab kev tswj hwm kev noj qab haus huv.