Arsenic inowanikwa zvakasikwa muzvicherwa, pasi pevhu, uye mumadhaka. Mabasa emaindasitiri nekuchera migodhi zvinowedzera kuwedzera arsenic muvhu nemumvura. Zvirimwa zvekudya zvinotora arsenic kubva muzvinhu izvi, zvichikonzera kusvibiswa. Arsenic isina kugadzirwa ine chepfu yakawanda; kugara ichishandiswa inokonzera maronda eganda, chirwere chemwoyo, chepfu yetsinga, uye njodzi dzekenza zvinosimbiswa neEFSA risk assessments. World Health Organization inoisa huwandu hwe10 µg/L hwearsenic mumvura yekunwa; US FDA inoganhurira arsenic muzviyo zvemupunga zvevacheche kusvika 100 ppb.
zvinhu zvinokonzera arsenic kuvanhu
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Manyuko uye Mhedzisiro Pakuchengetedzwa Kwechikafu
Mupunga, kunyanya mupunga webrown, unounganidza arsenic isina kugadzirwa kubva muminda yakazara nemvura. Zviyo, miriwo, uye muto wemichero zvinoratidza huwandu hwakakwira munzvimbo dzakasvibiswa. Varimi vanosangana nekutorwa kwemvura kubva mukudiridza nemvura yakazara nearsenic. Vagadziri vezvekudya vanofanirwa kuongorora zvinhu zvisina kugadzirwa; marabhoritari ezvakatipoteredza anoongorora ivhu kuti vaone kuchengetedzeka kwekurima. Masangano anotonga anoona nzvimbo dzinopisa achishandisa bvunzo dzemumunda uye ongororo yemarabhoritari. Zvakawanikwa neEFSA zvinoratidza kuti mupunga nechikafu chine zviyo ndizvo zvinonyanya kukonzera kusvibiswa kwearsenic muzvokudya, zvichikurudzira kuti pave nekutarisa kwakasimba uye matanho ekuderedza dambudziko iri.
X-Ray Fluorescence SpectroscopyKuona Arsenic
X-ray fluorescence spectroscopy inoona elemental arsenic mu solid matrices nekuona hunhu hweX-ray emissions mushure mekuvhenekerwa kwemuenzaniso. XRF inoyera zvakananga inorganic arsenic muvhu nechikafu—kusanganisira mupunga nezviyo—nekugadzirira zvishoma kwemuenzaniso, zvichitsigira kuchengetedzeka kwechikafu uye kutevedzera nharaunda nekudzokororwa kwakaratidzwa. Sekuongorora kwakasimba, XRF inodzivirira marara emvura uye ma reagents ane njodzi anoshandiswa mu wet chemistry, ichideredza njodzi yemushandisi. Maitiro eSilver nitrate-based XRF anowedzera miganhu yekuona, zvichiita kuti picogram-level sensitivity mu complex matrices, uye inopa imwe nzira yakachengeteka nharaunda. XRF inobudirira pakukurumidza arsenic hotspot mapping muminda yakasvibiswa, mapurojekiti ekugadzirisa, uye mitsetse yekugadzira chikafu.
Mhinduro yeLonnmeter XRF Analyzer
Lonnmeter XRF Analyzer: Zvimiro uye Maparamita
Lonnmeter XRF analyzer inopa kunyatsoona arsenic isina kugadzirwa muchikafu chakasimba, ivhu, uye nharaunda uchishandisa tekinoroji yepamusoro yekupararira kwewavelength. Dhizaini inotakurika inobvumira kuyerwa nekukurumidza panzvimbo pasina zvivakwa zverabhoritari. Zvinhu zvekuchengetedza zvinodzivirira vanoshanda kubva pakuratidzwa ne x-ray, nepo maitiro ekugadzirisa akasimba achishandisa zvinhu zvekutarisa zvakabvumidzwa kuti zvitevedzerwe zvakarurama. Maprofayiri ekuongorora anogadziriswa anochinjika kumupunga, zviyo, ivhu, uye chikafu chakagadziriswa. Kuenderana nemamatrices akasiyana kunoita kuti kuyerwa kwakajairika kwemashandisirwo eindasitiri nemutemo.
Mabhenefiti ekushandisa XRF pakuongorora kweArsenic
X-ray fluorescence spectroscopy inoita kuti arsenic iongororwe zvakanyanya pasina ma reagents ane njodzi kana kuti inotarisirwa zvakanyanya, zvichideredza nguva yekuongorora ne70% zvichienzaniswa nenzira dzechinyakare dzeICP-MS. Kusabvisa makemikari kunoreva kuti njodzi yekusvibiswa kana kurasikirwa ne analyte ishoma. Ongororo yakaitwa munguva pfupi yapfuura inoratidza kururama kwakafanana uye kuvimbika kune wet chemistry yakajairika, zvichitsigira kutevedzera mitemo uye kutarisa nharaunda. Kuchengetedza mari pama reagents uye kurapwa kwemarara kunoita kuti Lonnmeter analyzer ive inodhura zvakanyanya pakuongorora chikafu, kugadzirisa ivhu, uye kutarisa simbi ine simba.
Maitiro eLonnmeter ekugadzirisa Matambudziko Akakosha
Lonnmeter inopa huwandu hwearsenic hunogona kushandiswa kune vanogadzira uye marabhoritari ezvakatipoteredza, zvichitsigira kuderedza njodzi zvichienderana nezvinodiwa pari zvino zvehutano. Maitiro ekugadzirisa akabatanidzwa anovimbisa kuyerwa kudzokororwa pamatanho ese—kubva pakuongorora kwekukohwa kusvika pakuongororwa kwechigadzirwa chakaiswa mupakeji. Zvinhu zvekugadzirisa otomatiki zvinochengetedza kunzwisisika uye zvinogadzirisa mhedzisiro yematrix, zvichibvisa kugadziriswa nemaoko. Mhedzisiro chaiyo inogonesa magwaro ekutevedzera mitemo nekukurumidza, inorerutsa kuonekwa muongororo dzemitemo, uye inotsigira varimi vezvekudya vanotarisana nekusvibiswa kwearsenic mupunga, zviyo, nevhu.
Kumbira Mutengo weLonnmeter XRF Analyzer
Sei Uchifanira Kusarudza Lonnmeter Yekuona Arsenic?
Lonnmeter XRF analyzer inotsigira kutevedzera mitemo yekuyera kusvibiswa kwearsenic mukuchengetedza chikafu, ivhu, uye nharaunda uchishandisa x-ray fluorescence spectroscopy. Mitengo yakagadzirwa inobvumidza sampuli chaiyo, huwandu hwekusvibiswa, uye zvinodiwa pakutevedzera mitemo mumashandisirwo akasiyana-siyana.
Mibvunzo Inowanzo bvunzwa (Mibvunzo Inowanzo bvunzwa)
Ndeipi mukana mukuru we x-ray fluorescence spectroscopy pakuona arsenic?
X-ray fluorescence spectroscopy inobvumira ongororo yehuwandu, isingaparadze, uye ine zvinhu zvakawanda zvezvinhu zvakasimba zvakaita sevhu, mupunga, nehupfu hwechikafu. Ongororo haidi kugaya kwemuenzaniso, ichideredza kutendeuka kusvika pamaminitsi uku ichideredza njodzi yekusvibiswa.
Arsenic inorganic iri muchikafu inogona sei kukanganisa hutano?
Kugara uchidya zvinhu zvisina kugadzirwa muzvikafu kunogona kukonzera maronda eganda, chirwere chemwoyo, zvirwere zvetsinga, uye kenza yemapapu nedundira. European Food Safety Authority neWHO dzinoratidza kuti mupunga, zviyo, uye chikafu chinobva mugungwa ndizvo zvinonyanya kukonzera kuwanda kwearsenic muzvokudya. Vana nevakadzi vane pamuviri ndivo vanonyanya kubatwa nechirwere ichi.
Nguva yekutumira: Kurume-06-2026
