I-Lanthanum chloride, evame ukwaziwa ngokuthiLaCl3, iyinhlanganisela enezinhlobonhlobo zezicelo ocwaningweni lwesayensi nasembonini.Omunye wemisebenzi yawo ebalulekile usenkundleni ye-atomic absorption spectroscopy (AAS), lapho idlala indima ebalulekile ekuthuthukiseni ukunemba nokuzwela kokuhlaziya.I-AAS yindlela yokuhlaziya esetshenziselwa ukunquma ukuhlangana kwezinto kusampula.Ake sibhekisise indima kai-lanthanum chlorideku-spectroscopy yokumuncwa kwe-athomu futhi baqonde ukubaluleka kwayo.
I-AAS isetshenziswa kakhulu ezimbonini eziningi, okuhlanganisa ukuqapha kwemvelo, ezemithi, ezolimo, i-metallurgy, njll. Iyindlela esebenzisa ama-athomu ukumunca nokukhipha ukukhanya ukuze kutholwe futhi kulinganise izici ezihlukene kusampula esinikeziwe.I-instrumentation esetshenziswa ku-AAS iqukethe izingxenye ezimbalwa, okuhlanganisa isibani se-cathode esingenalutho esinezinto ezithakaselwayo, i-nebulizer, i-monochromator, ishubhu le-photomultiplier, futhi ekugcineni umtshina.
I-Lanthanum chlorideisetshenziswa ngokuyinhloko njengesilungisi samakhemikhali ku-spectrometry yokumuncwa kwe-athomu.Izilungisi zamakhemikhali yizinto ezengezwe kusampula noma ilangabi ukuze kuthuthukiswe ukuzinza kwento ehlaziywayo futhi kuthuthukiswe ukuzwela kokulinganisa.Ku-spectrometry yokumuncwa kwe-athomu, inani elincane lei-lanthanum chloridekuvame ukungezwa elangabini libe yisixazululo.Ngokwenza kanjalo, yakha ama-complexes anezakhi ezithile, iwavimbela ekusebenzisaneni ngamakhemikhali nezinye izingxenye ezikhona kusampula.
Omunye wemisebenzi eyinhloko yei-lanthanum chlorideku-spectrometry yokumuncwa kwe-athomu iwukuvimbela ukwakheka kwama-oxide ensimbi angaguquki.Lapho isampula ingena elangabini, iyahwamuka futhi i-athomu.Ezinye izakhi zivame ukwenza ama-oxide okunzima ukuwahwamulisa, okuholela ekulinganisweni okungalungile.I-Lanthanum chloride isebenza njengesithiyo, ivimbela ukwakheka kwalawa ma-oxide futhi iqinisekisa ukuzinza kwesici.
Ngaphezu kokuvimbela ukwakheka kwama-oxides,i-lanthanum chloridekungandisa ukuzwela kokuhlaziywa.Lokhu ikwenza ngokwandisa ukusebenza kahle kwe-ionization kwezakhi ze-analyte, okuholela emandleni esignali angcono.Lokhu kuzwela okuthuthukisiwe kuvumela ukutholwa nokulinganisa kwezakhi zokulandelela ngisho nakumatikuletsheni ayinkimbinkimbi.Ikhono lokulinganisa ukugxila okuphansi libalulekile ezinhlelweni ezihlukahlukene, njengokuhlaziywa kwemvelo, lapho ukuba khona kokungcola komkhondo kungaba nomthelela omkhulu.
Ngaphezu kwalokho,i-lanthanum chloridekwaziwa ngokunyusa ukuzinza kwezakhi ezithile emalangabini.Amanye ama-elementi, ikakhulukazi lawo anokuntengantenga okuphansi, avame ukuba nokunemba okubi kanye nokuzinza phakathi nenqubo ye-athomu.Ngokwethulai-lanthanum chlorideelangabini, ukuzinza kwalezi zakhi kuyenyuka, okuholela emiphumeleni yokuhlaziya enokwethenjelwa futhi ekwazi ukukhiqiza kabusha.
Kubalulekile ukuqaphela ukuthi ukukhethwa kwe-chemical modifier, kuhlanganisei-lanthanum chloride, kuncike entweni ethile ehlaziywayo.Izakhi ezihlukene zingase zibe nezidingo ezihlukene futhi ziphendule ngendlela ehlukile ebukhoneni bezishintshi zamakhemikhali.Ngakho-ke, ukuze kutholwe imiphumela yokuhlaziya enembile, kuyadingeka ukuba nokuqonda okuphelele kwesampula ehlaziywayo nokukhetha izilungisi zamakhemikhali ezifanele.
Ekuphetheni,i-lanthanum chlorideidlala indima ebalulekile njengesishintshi samakhemikhali ku-AAS.Umsebenzi wayo oyinhloko ukuvimbela ukwakheka kwama-oxide ensimbi angaguquki, kuthuthukise ukuzwela kokuhlaziya, nokuthuthukisa ukuzinza kwezakhi ezithile.Ngokusebenzisai-lanthanum chlorideku-AAS, abacwaningi nabahlaziyi bangathola izilinganiso ezinembile nezithembekile, okubavumela ukuba bajule ezindaweni ezisukela ekuqaphelweni kwemvelo kuye ocwaningweni lwezemithi.Ukuthuthuka okuqhubekayo kobuchwepheshe be-AAS kanye nokusetshenziswa kwezilungisi zamakhemikhali ezisebenzayo ezifanai-lanthanum chlorideathuthukise kakhulu ukunemba kanye nokuzwela kokuhlaziya okuyisisekelo.
Isikhathi sokuthumela: Nov-09-2023