Cov tshuaj tua kab yog cov tshuaj siv los tua cov kab tsuag, nrog rau cov kab, nas, fungi thiab cov nroj tsuag tsis zoo (cov nroj tsuag).Tsis tas li ntawd, lawv kuj tau siv rau pej xeem noj qab haus huv los tua cov kab mob xws li yoov tshaj cum.Vim tias lawv tuaj yeem ua rau muaj kev phom sij rau lwm yam kab mob, suav nrog tib neeg, cov tshuaj tua kab yuav tsum tau siv kom nyab xeeb thiab ua haujlwm zoo1.
Thaum ua haujlwm, raug tshuaj tua kab hauv tsev lossis hauv vaj yuav ua rau raug tshuaj tua kab, piv txwv li los ntawm cov zaub mov tsis huv.Lub koom haum WHO tshuaj xyuas cov pov thawj thiab teeb tsa thoob ntiaj teb lees paub qhov kev txwv ntau tshaj plaws los tiv thaiv tib neeg los ntawm kev phom sij kev noj qab haus huv los ntawm tshuaj tua kab.2
Reversed-theem high performance kua chromatography (HPLC) feem ntau yog siv los kwv yees qhov concentration ntawm cov khoom xyaw nquag hauv tshuaj tua kab.Txawm li cas los xij, hom chromatography no yuav tsum tau siv cov kuab tshuaj lom, thiab siv sijhawm ntev thiab cov neeg ua haujlwm tau zoo, ua rau cov nqi siab rau kev soj ntsuam niaj hnub.Siv pom nyob ze infrared spectroscopy (Vis-NIRS) es tsis txhob HPLC tuaj yeem txuag sijhawm thiab nyiaj txiag.
Txhawm rau kuaj qhov ua tau zoo ntawm kev siv Vis-NIRS es tsis txhob HPLC, 24-37 cov qauv tshuaj tua kab uas paub tias muaj txiaj ntsig zoo tau raug npaj: abamectin EC, amimectin EC, cyfluthrin EC, cypermethrin, thiab glyphosate.Ntsuas qhov sib txheeb ntawm kev hloov pauv.Spectral cov ntaub ntawv thiab siv qhov tseem ceeb.
NIRS RapidLiquid analyzer yog siv los muab cov spectrum ntawm nws tag nrho cov wavelength ntau yam (400-2500 nm).Cov qauv yog muab tso rau hauv ib lub raj mis pov tseg nrog lub cheeb ntawm 4 mm.Vision Air 2.0 Ua tiav software yog siv rau kev sau cov ntaub ntawv thiab kev tswj hwm nrog rau kev tsim kom muaj nuj nqis.Ib nrab qhov tsawg kawg nkaus squares (PLS) regression tau ua nyob rau hauv txhua tus qauv tshuaj ntsuam xyuas, thiab sab hauv cross-validation (tso tawm) tau siv los xyuas kom meej qhov kev ua tau zoo ntawm tus qauv ntau npaum li cas los ntawm txoj kev txhim kho.
Daim duab 1. Lub NIRS XDS RapidLiquid analyzer yog siv rau cov ntaub ntawv spectral nrhiav tau tag nrho ntawm 400 nm txog 2500 nm.
Txhawm rau txhawm rau txheeb xyuas txhua qhov sib xyaw hauv cov tshuaj tua kab, ib qho qauv siv ob yam raug tsim, nrog rau kev ntsuas tus qauv kev ua yuam kev (SEC) ntawm 0.05% thiab tus qauv kev sib tw (SECV) ntawm 0.06%.Rau txhua qhov sib xyaw ua haujlwm zoo, R2 qhov tseem ceeb ntawm qhov muab siv tus nqi thiab tus nqi suav yog 0.9946, 0.9911, 0.9912, 0.0052, thiab 0.9952, feem.
Daim duab 2. Raw cov ntaub ntawv spectra ntawm 18 cov qauv tshuaj tua kab nrog abamectin concentrations ntawm 1.8% thiab 3.8%.
Daim duab 3. Cov duab sib txheeb ntawm cov ntsiab lus abamectin kwv yees los ntawm Vis-NIRS thiab tus nqi siv los ntsuas los ntawm HPLC.
Daim duab 4. Cov ntaub ntawv nyoos spectra ntawm 35 cov qauv tshuaj tua kab, uas qhov concentration ntau ntawm amomycin yog 1.5-3.5%.
Daim duab 5. Correlation graph ntawm cov ntsiab lus amimectin kwv yees los ntawm Vis-NIRS thiab tus nqi siv los ntsuas los ntawm HPLC.
Daim duab 6. Raw cov ntaub ntawv spectra ntawm 24 cov qauv tshuaj tua kab nrog cyfluthrin concentrations ntawm 2.3–4.2%.
Daim duab 7. Correlation graph ntawm cov ntsiab lus cyfluthrin kwv yees los ntawm Vis-NIRS thiab tus nqi siv tau soj ntsuam los ntawm HPLC.
Daim duab 8. Cov ntaub ntawv nyoos spectra ntawm 27 cov qauv tshuaj tua kab nrog cypermethrin concentration ntawm 4.0-5.8%.
Daim duab 9. Cov duab sib txheeb ntawm cov ntsiab lus cypermethrin tau kwv yees los ntawm Vis-NIRS thiab cov nqi siv los ntsuas los ntawm HPLC.
Daim duab 10. Cov ntaub ntawv nyoos spectra ntawm 33 cov qauv tshuaj tua kab nrog glyphosate concentration ntawm 21.0-40.5%.
Daim duab 11. Correlation graph ntawm glyphosate cov ntsiab lus kwv yees los ntawm Vis-NIRS thiab tus nqi siv tau ntsuas los ntawm HPLC.
Cov txiaj ntsig zoo sib xws ntawm cov nqi siv thiab tus nqi suav nrog Vis-NIRS qhia tias nws yog ib txoj hauv kev txhim khu kev qha thiab nrawm dua rau kev tswj xyuas cov tshuaj tua kab zoo piv rau cov txheej txheem HPLC ib txwm siv.Yog li ntawd, Vis-NIRS tuaj yeem siv los ua lwm txoj hauv kev ua haujlwm siab ua kua chromatography rau niaj hnub tshuaj xyuas tshuaj tua kab thiab tuaj yeem txuag sijhawm thiab nyiaj txiag.
Metrohm (2020, May 16).Kev soj ntsuam ntau ntawm tsib cov khoom xyaw zoo hauv cov tshuaj tua kab los ntawm kev pom lub teeb ze ntawm infrared spectroscopy.AZoM.Tau txais los ntawm https://www.azom.com/article.aspx?ArticleID=17683 thaum Lub Kaum Ob Hlis 16, 2020.
Metrohm "qus tsib cov khoom xyaw nquag hauv cov tshuaj tua kab los ntawm kev pom thiab ze ntawm infrared spectroscopy."AZoM.Hnub tim 16 lub 12 hlis 2020..
Metrohm "qus tsib cov khoom xyaw nquag hauv cov tshuaj tua kab los ntawm kev pom thiab ze ntawm infrared spectroscopy."AZoM.https://www.azom.com/article.aspx?ArticleID=17683.(Tau txais Lub Kaum Ob Hlis 16, 2020).
Metrohm Corporation nyob rau xyoo 2020. Kev soj ntsuam ntau ntawm tsib cov khoom xyaw zoo hauv cov tshuaj tua kab tau ua los ntawm kev pom thiab ze ntawm infrared spectroscopy.AZoM, saib thaum Lub Kaum Ob Hlis 16, 2020, https://www.azom.com/article.aspx?PIB = 17683.
Hauv kev xam phaj no, Simon Taylor, Tus Thawj Saib Xyuas Kev Lag Luam ntawm Mettler-Tledo GmbH, tau tham txog yuav ua li cas txhawm rau txhim kho kev tshawb fawb roj teeb, kev tsim khoom thiab kev tswj xyuas zoo los ntawm kev titration.
Hauv kev xam phaj no, AZoM thiab Scintacor's CEO thiab tus thawj coj ua haujlwm Ed Bullard thiab Martin Lewis tau tham txog Scintacor, lub tuam txhab cov khoom, peev xwm, thiab lub zeem muag rau yav tom ntej.
Bcomp CEO Christian Fischer tham nrog AZoM txog kev koom tes tseem ceeb ntawm McLaren hauv Formula One.Lub tuam txhab tau pab tsim ntuj fiber ntau sib tw rooj zaum, echoing cov kev taw qhia ntawm ntau sustainable technology kev loj hlob nyob rau hauv kev sib tw thiab automotive industries.
Yokogawa Fluid Imaging Technologies, Inc.'s FlowCam® 8000 series yog siv rau cov duab digital thiab microscopy.
ZwickRoell tsim ntau yam hardness kuaj tshuab rau ntau yam kev siv.Lawv cov cuab yeej siv tau zoo, muaj zog thiab muaj zog.
Tshawb Zetasizer Labs-qib nkag-qib qhov loj me thiab zeta muaj peev xwm ntsuas nrog cov yam ntxwv txhim kho.
Peb siv cov ncuav qab zib los txhim kho koj qhov kev paub.Los ntawm txuas ntxiv mus saib lub vev xaib no, koj pom zoo rau peb siv cov ncuav qab zib.Xav paub ntxiv.