Kev Hloov Pauv Tsis Siv Neeg Ntawm Cov Kab Spectral Muaj Zog Thiab Tsis Muaj Zog: AES-8000 Full-Spectrum AC/DC Arc Emission Spectrometer

Thaum ua yeeb yamkev tshuaj xyuas emission spectroscopy, koj feem ntau ntsib cov teeb meem hauv qab no: cov kab spectral tsis muaj zog dhau los ua qhov tsaus ntuj nrog kev kuaj pom qis, ua rau muaj kev cuam tshuam suab nrov ntau dhau thiab cov ntaub ntawv tsis siv tau; thaum cov kab spectral muaj zog yooj yim saturate thiab raug kev txom nyem tus kheej-absorption thaum lub sijhawm kuaj siab concentration, ua rau muaj cov txiaj ntsig skewed ntau heev. Kev hloov tes ntawm cov kab spectral tsis yog tsuas yog siv sijhawm ntau xwb tab sis kuj tseem yuav ua yuam kev. Tam sim no, kev hloov pauv tsis siv neeg ntawm cov kab spectral muaj zog thiab tsis muaj zog muaj:

LubAES-8000 puv spectrum AC/DC arc emission spectrometerlos ntawm BFRL muaj "kev sib xyaw ua ke ntse" rau kev tshuaj xyuas ntau kab sib koom ua ke, uas daws cov teeb meem ntawm kev ntsuas tag nrho nrog ib qho nias, ua rau kev tshuaj xyuas emission spectrum zoo dua thiab raug.

Kev hloov pauv tsis siv neeg ntawm cov kab spectral muaj zog thiab tsis muaj zog yog dab tsi?

Tsuas yog, nws yog ib qho "ntse tswj" rau kev tshawb pom emission spectroscopy. Thaum lub sijhawm tshawb pom, tsis tas yuav tsum tau kev pab cuam tes, thiab nws tuaj yeem rov qab tau cov kab spectral nrog lub zog tsim nyog hauv lub sijhawm tiag tiag raws li qhov concentration thiab cov ntsiab lus ntawm txhua lub ntsiab lus, ua tiav kev ntsuas tseeb yam tsis muaj qhov yuam kev thoob plaws tag nrho. Txawm tias nws yog qhov concentration qis lossis siab, tsis tas yuav tsum tau hloov cov kab spectral manually lawm. Lub software tuaj yeem hloov kho rau qhov kev daws teeb meem zoo tshaj plaws!

Qhov zoo tshaj plaws: Vim li cas nws thiaj li dhau los ua "tus huab tais ua haujlwm tau zoo"?

Kev them tag nrho dav dav: qhov concentration qis siv cov kab spectral muaj zog los tswj qhov rhiab heev, qhov concentration siab siv cov kab spectral tsis muaj zog los tswj qhov linearity, tsis tas yuav hloov cov kev ntsuas rau ntau qhov ntsuas lossis hloov cov kab manually, yooj yim npog tag nrho cov concentration.

Tiv thaiv kev cuam tshuam: Kev saib xyuas lub sijhawm tiag tiag ntawm cov kab spectral muaj zog, thaum ncav cuag qhov txwv, nws hloov mus rau cov kab spectral tsis muaj zog, daws qhov teeb meem ntawm kev ntsuas qhov sib txawv ntawm kev ntsuas siab.

Qhov tseeb tsis raug cuam tshuam: Cov kab spectral muaj zog thiab tsis muaj zog sib pab ua ke, tswj tau qhov tseeb siab hauv kev tshuaj xyuas sib koom ua ke ntawm ntau cov kab spectral.

Nws ua li cas thiaj ua tiav "kev hloov pauv ntse"?

Ob kauj ruam kev siv ntawm kev hloov kho tsis siv neeg, lub hauv paus ntsiab lus yooj yim thiab nkag siab:

(1) Kev sib koom ua ke ntawm ntau cov kab ua haujlwm: Cov software tib lub sijhawm sau ntau cov cim kab spectral ntawm tib lub ntsiab lus nrog ntau lub zog thiab qhov tsis muaj zog, thiab haum rau cov kab ua haujlwm ntawm txhua kab spectral. Tsuas yog teeb tsa qhov hloov pauv threshold raws li qhov ntau ntawm txhua kab ua haujlwm kom ua tiav kev sib sau ua ke ntawm cov kab spectral muaj zog / tsis muaj zog.

(2) Kev hloov pauv dynamic: Ua ntej, siv cov kab spectral muaj zog los tswj qhov kev ntsuas. Thaum qhov tshwm sim ntawm kev kuaj pom mus txog qhov txwv, nws yuav hloov mus rau cov kab spectral tsis muaj zog thiab hloov pauv mus rau qhov tsis muaj zog thoob plaws hauv tag nrho cov txheej txheem.

Cov Xwm Txheej ntawm Daim Ntawv Thov

Hauv kev txiav txim siab ntawm nyiaj (Ag), boron (B), tin (Sn), molybdenum (Mo), thiab txhuas (Pb) hauv cov av thiab cov kwj deg rau kev lag luam geological, qhov zoo ntawm kev hloov pauv tsis siv neeg ntawm cov kab muaj zog thiab tsis muaj zog tau pom tseeb tag nrho.

Rau cov ntsiab lus tsawg, cov kab muaj zog—Ag (328.068 nm), Sn (317.50 nm), B (249.773 nm), Mo (313.2594 nm), thiab Pb (283.3069 nm)—yuav ntes tau cov khoom me me kom raug. Thaum cov concentration ntau tshaj qhov txwv hloov kab, lub kaw lus yuav hloov mus rau cov kab tsis muaj zog kom tsis txhob muaj kev sib sau ua ke, thiab tseem tuaj yeem ua ntau qhov kev hloov pauv (piv txwv li, rau Pb). Los ntawm kev tshuaj xyuas ua ke siv ob qho tib si cov kab muaj zog thiab cov kab tsis muaj zog, lub kaw lus tsis yog tsuas yog ua tau raws li qhov yuav tsum tau ua rau kev kuaj pom qis xwb tab sis kuj npog cov qib kev kuaj pom uas xav tau rau cov qauv av thiab cov dej ntws.