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 kunika amandla ukutholwa nokulinganisa kwama-elementi okulandelela 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