I-Laser-Induced Breakdown Spectroscopy (LIBS), eyaziwa nangokuthi i-Laser-Induced Plasma Spectroscopy (LIPS), iyindlela yokuthola i-spectral esheshayo.
Ngokugxilisa i-laser pulse enomthamo omkhulu wamandla endaweni okuhloswe kuyo isampula ehloliwe, i-plasma ikhiqizwa ukuvuthwa kwe-ablation, bese ngokuhlaziya imigqa ye-spectral yesici ekhishwa ukuguqulwa kwezinga lamandla e-electron yezinhlayiya ze-plasma, izinhlobo nolwazi lokuqukethwe kwezinto eziqukethwe kusampula zingatholakala.
Uma kuqhathaniswa nezindlela zokuthola izinto ezivame ukusetshenziswa ezisetshenziswa njengamanje, njenge-Inductively Coupled PlasmaOptical Emission Spectrometry (ICP-OES), i-Inductively coupled Plasmaoptical mass spectrometry (Inductively Coupled PlasmaOptical Emission Spectrometry) I-Coupled PlasmaMass Spectrometer (ICP-Flurgetical) Xres I-Emission Spectroscopy,SD-OES) Ngokufanayo, i-LIBS ayidingi ukulungiswa kwesampula, ingathola ngesikhathi esisodwa izakhi eziningi, ikwazi ukubona izimo eziqinile, eziwuketshezi, negesi, futhi ingahlolwa ukude futhi ku-inthanethi.
Ngakho-ke, selokhu kwavela ubuchwepheshe be-LIBS ngo-1963, budonse ukunaka okubanzi kwabacwaningi emazweni ahlukahlukene. Amandla okuthola ubuchwepheshe be-LIBS akhonjiswe izikhathi eziningi kuzilungiselelo zaselabhorethri. Kodwa-ke, endaweni yasensimini noma isimo sangempela sesizinda sezimboni, ubuchwepheshe be-LIBS budinga ukubeka phambili izidingo eziphakeme.
Isibonelo, uhlelo lwe-LIBS ngaphansi kweplathifomu ye-laboratory optical alunamandla kwezinye izimo lapho kunzima ukusampula noma ukuthutha amasampula ngenxa yamakhemikhali ayingozi, izinto ezikhipha imisebe noma ezinye izizathu, noma uma kunzima ukusebenzisa imishini yokuhlaziya enkulu endaweni encane.
Kweminye imikhakha ethile, efana ne-archaeology yasendle, ukuhlola amaminerali, iziza zokukhiqiza zezimboni, ukutholwa kwesikhathi sangempela kubaluleke kakhulu, kanye nesidingo semishini yokuhlaziya ephathwayo emincane, ephathekayo.
Ngakho-ke, ukuze kuhlangatshezwane nezidingo zokusebenza kwensimu kanye nokutholwa kwe-inthanethi kokukhiqizwa kwezimboni kanye nokwehlukahlukana kwezimpawu zesampula, ukuphatheka kwemishini, ikhono eliqinile lemvelo kanye nezinye izici ezintsha seziyizidingo ezintsha neziphakeme zobuchwepheshe be-LIBS ekusetshenzisweni kwezimboni, i-LIBS ephathekayo yaba khona, futhi ibilokhu ikhathazeke kakhulu ngabacwaningi emazweni ahlukahlukene.
Isikhathi sokuthumela: Jun-14-2023