I-Laser-induced breakdown spectroscopy

I-Laser-Induced Breakdown Spectroscopy (LIBS), ekwabizwa ngokuba yiLaser-Induced Plasma Spectroscopy (LIPS), yindlela yokukhangela ekhawulezayo yokubona.

Ngokugxininisa i-laser pulse kunye noxinano lwamandla aphezulu phezu kwendawo ekujoliswe kuyo kwisampulu evavanyiweyo, i-plasma iveliswa yi-excitation ye-ablation, kwaye emva koko ngokuhlalutya imigca ye-spectral ebonakaliswe yi-electron level level transit of the particles in the plasma, iintlobo kunye nolwazi lomxholo wezinto eziqulethwe kwisampulu zinokufumaneka.

Xa kuthelekiswa neendlela ezisetyenziswa ngoku eziqhelekileyo zokufumanisa izinto, ezifana ne-Inductively Coupled PlasmaOptical Emission Spectrometry (ICP-OES), i-Inductively idityaniswe ne-Plasmaoptical mass spectrometry (I-Inductively Coupled PlasmaOptical Emission Spectrometry) Idityaniswe ne-PlasmaMass Spectrometer (ICP-XluRF) ), I-Spark Discharge Optical Emission Emission Spectroscopy, i-SD-OES) Ngokufanayo, i-LIBS ayifuni ukulungiswa kwesampuli, inokubona ngaxeshanye izinto ezininzi, ikwazi ukubona izinto eziqinileyo, ezinolwelo kunye negesi, kwaye zinokuvavanywa kude nakwi-intanethi.

Ke ngoko, ukusukela oko kwavela itekhnoloji ye-LIBS ngo-1963, iye yatsala ingqalelo ebanzi yabaphandi kumazwe ahlukeneyo. Ubunakho bokubona ubuchwephesha be-LIBS bubonakaliswe amaxesha amaninzi kwiiSetingi zelabhoratri. Nangona kunjalo, kwindawo yentsimi okanye imeko yokwenyani yendawo yoshishino, itekhnoloji ye-LIBS kufuneka ibeke phambili iimfuno eziphezulu.

Ngokomzekelo, inkqubo ye-LIBS phantsi kwe-platform ye-laboratory optical ayinamandla kwezinye iimeko xa kunzima ukwenza isampuli okanye ukuthutha iisampulu ngenxa yeekhemikhali ezinobungozi, izinto ze-radioactive okanye ezinye izizathu, okanye xa kunzima ukusebenzisa izixhobo ezinkulu zokuhlalutya kwindawo emxinwa. .

Kwezinye iinkalo ezithile, ezifana ne-archeology field, ukuhlola amaminerali, indawo yokuvelisa i-industrial, ukufumanisa ixesha langempela kubaluleke kakhulu, kunye nesidingo se-miniaturized, izixhobo zokuhlalutya eziphathekayo.

Ngoko ke, ukuze kuhlangatyezwane neemfuno zemisebenzi yentsimi kunye nokuveliswa kwemveliso kwi-intanethi kunye neempawu zesampulu ezahlukeneyo, ukuthwala izixhobo, amandla okusingqongileyo okuchasayo kunye nezinye iimpawu ezintsha ziye zaba ziimfuno ezintsha neziphezulu zeteknoloji ye-LIBS kwizicelo zoshishino, i-LIBS ephathekayo. yabakho, kwaye iye yakhathazwa ngokubanzi ngabaphandi abakumazwe ahlukeneyo.