I-Laser-Induced Plasma Spectroscopy (LIBS), eyaziwa nangokuthi i-Laser-Induced Plasma Spectroscopy (LIPS), iyindlela yokuthola ama-spectral ngokushesha.
Ngokugxilisa i-laser pulse enobukhulu bamandla aphezulu ebusweni be-target yesampula evivinyiwe, i-plasma ikhiqizwa yi-ablation excitation, bese kuthi ngokuhlaziya imigqa ye-spectral ephawulekayo ekhishwa ukuguquka kwezinga lamandla e-electron lama-particles ku-plasma, izinhlobo nolwazi lokuqukethwe kwezinto eziqukethwe kusampula lungatholakala.
Uma kuqhathaniswa nezindlela zokuthola izinto ezisetshenziswa kakhulu 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-MS), i-X-ray Fluorescence (XRF), i-Spark Discharge Optical Emission Spectroscopy, i-SD-OES) Ngokufanayo, i-LIBS ayidingi ukulungiswa kwesampula, ingathola izinto eziningi ngasikhathi sinye, ingathola izimo eziqinile, eziwuketshezi, kanye negesi, futhi ingahlolwa kude futhi ku-inthanethi.
Ngakho-ke, selokhu kwaqala ubuchwepheshe be-LIBS ngo-1963, budonsele ukunaka okukhulu kwabacwaningi emazweni ahlukahlukene. Amandla okuthola ubuchwepheshe be-LIBS abonakaliswe kaningi ezindaweni zelebhu. Kodwa-ke, endaweni yasensimini noma esimweni sangempela sendawo yezimboni, ubuchwepheshe be-LIBS budinga ukubeka phambili izidingo eziphakeme.
Isibonelo, uhlelo lwe-LIBS ngaphansi kwepulatifomu ye-optical yelabhorethri alunamandla kwezinye izimo lapho kunzima ukusampula noma ukuthutha amasampula ngenxa yamakhemikhali ayingozi, izinto ezinemisebe noma ezinye izizathu, noma lapho kunzima ukusebenzisa imishini emikhulu yokuhlaziya endaweni encane.
Kweminye imikhakha ethile, njengesayensi yemivubukulo yasensimini, ukuhlola amaminerali, izindawo zokukhiqiza izimboni, ukutholwa kwesikhathi sangempela kubaluleke kakhulu, kanye nesidingo semishini yokuhlaziya emincane, ephathekayo.
Ngakho-ke, ukuze kuhlangatshezwane nezidingo zokusebenza kwensimu kanye nokutholwa kwemikhiqizo yezimboni ku-inthanethi kanye nokwehlukahluka kwezimpawu zamasampula, ukuthwaleka kwemishini, ikhono lokulwa nemvelo enzima kanye nezinye izici ezintsha sekuyinto entsha futhi ephezulu yobuchwepheshe be-LIBS ekusetshenzisweni kwezimboni, i-LIBS ephathekayo yaqala ukuba khona, futhi ibilokhu ikhathazekile kakhulu ngabacwaningi emazweni ahlukahlukene.
Isikhathi sokuthunyelwe: Juni-14-2023