Qhov kev ntsuas ntawm SiO₂, Na₂O, CaO, MgO, Al₂O₃, PbO, thiab K₂O yog qhov yuav tsum tau ua kom tswj tau qhov tseeb ntawm cov khoom thiab kev ua raws li txoj cai. Cov cuab yeej Lonnmeter XRF xa cov kev ntsuas raug, ncaj qha ntawm cov khoom tseem ceeb no.
Kev tshuaj xyuas niaj hnub nrhiav pom qhov sib txawv tsawg li 0.01 wt% rau cov oxides loj, kom ntseeg tau tias cov chaw tsim khoom tswj hwm qhov ntau ntawm cov khoom ntawm cov iav. Cov qib Na₂O lossis CaO tsis zoo tuaj yeem hloov pauv kev tiv taus cua sov, kev meej, thiab kev ruaj khov. Kev tswj hwm nruj txo qhov kev tsis lees txais ntau vim yog xim tsis raws li qhov kev qhia lossis kev ua haujlwm tsis zoo.
Kev Tshuaj Xyuas XRF Iav
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Cov Khoom Siv Iav: Cov Ntsiab Lus thiab Cov Khoom Siv Hloov Pauv
Ntau tshaj 70% ntawm cov iav lag luam yog tsim los ntawm silica (SiO₂), muab kev ruaj khov ntawm cov qauv thiab kev tiv thaiv tshuaj lom neeg. Dej qab zib (Na₂O), feem ntau yog 12–15%, txo qhov melting point, txhim kho kev tsim khoom. Lime (CaO), kwv yees li 9–12%, ua rau muaj kev tawv thiab kev ruaj khov ntawm tshuaj lom neeg. Alumina (Al₂O₃) ntawm 1–3% txhim kho lub zog kho tshuab thiab txhim kho kev ruaj khov thermal. Magnesia (MgO) thiab potash (K₂O) siv me me rau kev kho kom zoo viscosity thiab cov khoom nto. Lead oxide (PbO), thaum muaj ntau tshaj 24%, muab cov ntsuas refractive siab thiab qhov ceev ntau dua, tseem ceeb rau cov iav kho qhov muag thiab cov iav txhuas.
Cov khoom siv sib txawv yog txhais los ntawm cov ntsiab lus ntawm cov iav sib xyaw. Cov iav dej qab zib-txiv qaub tswj hwm kev tsim khoom thoob ntiaj teb vim muaj cov yam ntxwv sib npaug ntawm cov khoom siv kho tshuab thiab tshuaj lom neeg. Cov iav Borosilicate, suav nrog 10–13% B₂O₃, ua rau muaj kev nthuav dav thermal qis, tseem ceeb rau kev siv hauv chaw kuaj mob thiab cov khoom siv ua noj. Cov iav txhuas muab qhov tseem ceeb rau qhov pom tseeb thiab ci ntsa iab rau cov khoom siv rooj tog. Cov iav hloov pauv Aluminosilicate nce Al₂O₃ rau kev ruaj khov hauv cov chaw ib puag ncig hnyav. Txhua hom iav kev ua tau zoo vam khom kev tswj hwm qhov tseeb ntawm cov khoom siv iav.
Cov Hlua Iav Uas Muab Sib Xyaws Ua Ke, Cov Iav Pellets, thiab Cov Iav Hmoov
Cov hlaws iav sib xyaw ua ke muaj qhov sib xws siab thiab tsawg kawg nkaus volatilization, muab cov txiaj ntsig tseeb hauv XRF elemental tsom xam ntawm kev tsim iav. Lawv cov matrix sib xws tshem tawm cov micro-inhomogeneities, xyuas kom meej tias muaj kev ntsuas ncaj qha ntawm SiO₂, Na₂O, CaO, MgO, Al₂O₃, PbO, thiab K₂O.
Cov iav pellets ua haujlwm ua cov ntaub ntawv siv tau zoo thiab cov qauv ntsuas hauv cov txheej txheem tswj xyuas zoo ntawm cov iav. Lawv ua rau muaj kev tshuaj xyuas cov khoom sib xyaw sai thiab txhawb nqa kev tshawb pom qhov sib txawv lossis kev ua qias tuaj hauv cov chaw kuaj QA/QC. Cov pellets khaws cov ntsiab lus tseem ceeb ntawm cov iav sib xyaw, txhawb kev taug qab thoob plaws hauv kev tsim khoom.
Cov iav hmoov txhawb nqa cov qauv rau cov txheej txheem pleev xim, cov khoom siv abrasives, kev sib xyaw ua ke ntawm cov tshuaj, kev siv rov qab, thiab ua kom yooj yim sib xyaw. Nws cov khoom me me ua kom muaj kev sib xyaw ua ke tag nrho, tseem ceeb rau kev npaj cov qauv sawv cev. Cov ntawv thov iav hmoov txuas mus rau ob qho tib si txheej txheem thiab kev tsim khoom, tso cai rau kev saib xyuas qhov tseeb ntawm cov khoom siv iav thiab txhawb nqa kev tshuaj xyuas XRF ncaj qha, meej.
Hoobkas iav
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Kev Tswj Xyuas Zoo Hauv Kev Tsim Khob Iav
Kev tswj xyuas zoo ntawm cov khoom siv iav siv XRF rau kev kuaj xyuas ntau yam khoom, ua kom paub tseeb tias muaj kev sib xws ntawm ib pawg mus rau ib pawg thiab zam kev ua qias tuaj. Lonnmeter XRF cov txheej txheem ntsuas Si, Na, Ca, Mg, Al, K, Pb, thiab lwm yam khoom tseem ceeb hauv qab 60 vib nas this. TXRF cov txheej txheem tshuaj xyuas ntes tau cov khoom tseem ceeb thiab cov khoom me me, xws li Mn, Ni, Cu, Zn, thiab Sr, mus txog qib sub-ppm.
Kev soj ntsuam cov ntsiab lus tsis tseem ceeb tiv thaiv cov xim tsis xav tau thiab kev tsis muaj zog ntawm lub cev. Kev ntes Fe, Ti, thiab Pb concentration txhawb nqa kev pom tseeb ntawm qhov muag thiab tshem tawm cov kev pheej hmoo ntawm kev suav nrog lossis cov ntsiab lus ntxhov siab. Kev kos duab ntawm cov ntsiab lus, ua haujlwm los ntawm XRF-CT siab heev thiab cov txheej txheem confocal, txheeb xyuas qhov sib npaug ntawm qhov chaw thoob plaws daim ntawv lossis cov iav pwm, tseem ceeb rau kev tsim khoom loj.
Cov khoom siv XRF uas nqa tau thiab siv tau hauv kab ua haujlwm tau sai thiab yooj yim luam theej duab, thiab muab cov txiaj ntsig los ua ke rau hauv kev tswj cov txheej txheem tam sim ntawd. Txoj hauv kev no ua kom zoo dua qhov kev lees paub zoo ntawm kev tsim khoom iav, txhawb nqa cov lus qhia tshwj xeeb ntawm cov khoom thiab teb tam sim ntawd rau cov txheej txheem tsis sib xws.
Cov Txuj Ci Txheeb Xyuas thiab Kev Sib Txawv Hom
Cov txheej txheem txheeb xyuas iav suav nrog XRF spectral fingerprinting, kev ntsuas qhov ceev, thiab kev ntsuas refractive index. XRF spectral fingerprinting xa cov ntaub ntawv ncaj qha, tsis ua rau puas tsuaj rau txhua yam tseem ceeb ntawm cov khoom iav, tso cai rau kev ntes Si, Na, Ca, Mg, Al, Pb, thiab K nrog kev rov ua dua hauv qab 3% RSD. Kev ntsuas qhov ceev pab cais cov khoom sib xyaw ntawm cov khoom iav nrog kev hloov pauv ntawm 2.2 g / cm³ (soda-lime) mus rau ntau dua 3.1 g / cm³ (iav txhuas). Kev ntsuas refractive index sib cais meej soda-lime, borosilicate, thiab iav txhuas; cov nqi nD ib txwm muaj txij li 1.51 txog 1.70.
Kev tshuaj xyuas cov ntaub ntawv txheeb cais ua rau muaj qhov tseeb ntawm kev txheeb xyuas. K-txhais tau tias kev sib sau ua pawg cov iav tawg los ntawm ntau cov ntaub ntawv XRF, txhawb nqa cov nqi sib phim hauv chav kawm forensic siab dua 95%. Kev tshuaj xyuas grey sib raug zoo cais cov kev hloov pauv me me tab sis sib txawv ntawm cov pawg lossis cov kab sib txawv. Cov qauv chemometric faib cov iav (piv txwv li, cov hlaws iav fused piv rau cov iav hmoov) los ntawm cov ntiv tes ntawm cov khoom nrog ntau dua 98% qhov tseeb thaum koom ua ke nrog cov ntaub ntawv XRF.
Kev Tswj Xyuas Zoo rau Kev Tsim Khob Iav
Kev ua kom zoo ntawm kev tsim iav nyob ntawm kev kuaj pom ntau yam khoom sai thiab meej. Cov khoom siv XRF hauv kab thiab hauv chaw kuaj mob tuaj yeem txheeb xyuas cov khoom sib xyaw ntawm cov khoom siv iav hauv ob peb feeb xwb. X-ray fluorescence txheeb xyuas SiO₂, Na₂O, CaO, MgO, Al₂O₃, PbO, thiab K₂O, txhawb kev tswj hwm cov khoom sib xyaw ntawm cov iav thiab kev sib xyaw ua ke.
Raws li cov ntaub ntawv kev lag luam, XRF ua tiav qhov kev txwv ntes tau txog li 1 ppm rau cov khoom me me, ua rau pom cov khoom tsis huv uas cuam tshuam rau cov khoom lossis kev zoo nkauj. Kev siv XRF tso cai rau kev tawm tswv yim ncaj qha rau kev kho cov txheej txheem, ua rau cov txiaj ntsig nce mus txog 15% hauv cov kab tswj hwm nruj.
Kev xaiv tsis siv neeg sib koom ua ke nrog kev tsim khoom, ua kom ntseeg tau tias muaj kev txheeb xyuas tas mus li ntawm cov khoom siv iav. Qhov no txo qhov sib txawv ntawm ib pawg mus rau ib pawg thiab tshem tawm cov khoom tsis raws li qhov tau teev tseg. Kev tshuaj xyuas ntau yam khoom yog qhov tseem ceeb rau QA ntawm cov khoom zoo ntawm cov hlaws iav fused, kev siv cov iav pellets, thiab kev siv cov iav hmoov. Kev kuaj xyuas tag nrho ntawm qhov chaw txo lub sijhawm tsis ua haujlwm thiab ua rau muaj kev kho tam sim ntawd, txhawb nqa cov khoom zoo.
Txhim Kho Koj Txoj Haujlwm Tshawb Fawb Txog Iav
Cov cuab yeej ntsuas Lonnmeter XRF xa cov kev ntsuas tseeb ntawm cov ntsiab lus tseem ceeb rau cov iav sib xyaw: SiO₂, Na₂O, CaO, MgO, Al₂O₃, PbO, K₂O. Cov cuab yeej no muab kev ntes ntau yam rau kev lees paub zoo ntawm kev tsim iav thiab kev txheeb xyuas sai ntawm cov hlaws iav fused, cov iav pellets, thiab cov iav hmoov. Rau kev tshuaj xyuas iav siab heev, kho koj tus kheejTshuab XRFlos txhawb ntau yam kev xav tau hauv kev tsim iav thiab cov txheej txheem txheeb xyuas.
Lub sijhawm tshaj tawm: Lub Ob Hlis-04-2026
