20.500.12556/DKUM-40656 Validacija in izračun merilne negotovosti potenciometričnih postopkov določanja masnih deležev HCl in NaOH Validation and calculation of measurement uncertainty potenciometric determination procedure by weight HCl and NaOH Namen diplomske naloge je bil validirati: metodo za določitev masnega deleža HCl v vzorcih klorovodikove kisline in metodo za določitev masnega deleža NaOH v vzorcih natrijevega hidroksida z uporabo avtomatskega titratorja in potenciometrično indikacijo končne točke. Pri postopku validacije smo preverili: linearnost, ponovljivost, obnovljivost, točnost in robustnost preskusnih metod. Po izbiri ustreznih validacijskih parametrov smo izvedli eksperimente in potrdili primernost metod za predvideno uporabo ter ovrednotili merilno negotovost rezultata določitev masnega deleža HCl in NaOH. Ugotovili smo, da je postopek določitve masnega deleža HCl in NaOH v vzorcih klorovodikove kisline in natrijevega hidroksida primeren za predvideno vsakodnevno in rutinsko uporabo. Z validacijo smo dokazali, da sta preskusni metodi natančni, točni, linearni in robustni. V sklepnem delu diplomske naloge smo indentificirali vse izvore merilne negotovosti in s pomočjo modelnih enačb izračunali razširejeno merilno negotovost. In this undergraduate thesis, two potentiometric methods are validated: the method for the determination of the HCl mass fraction in hydrochloric acid samples and the method for the determination of NaOH mass fraction in sodium hydroxide samples. Automatic titration and potentiometric definition of the endpoint. were used for the validation. Linearity, repeatability, reproducibility, accuracy in robustness of testing methods were examined in the validation process. After selecting the appropriate validation parameters, experiments were carried out and the suitability the methods was confirmed. The measurement uncertainty of the result of the mass fraction results HCl and NaOH was evaluated. We found out that the procedure for the determination of the HCl and NaOH mass fraction in hydrochloric acid and sodium hydroxide samples is suitable for the intended use. The validation showed that both test methods are precise, exact, linear and robust. All measurement uncertainty sources were identified/determined and with the use of model equasions, extended measurement uncertainty was calculated. klorovodikova kislina natrijev hidroksid avtomatski titrator potenciometrična titracija končna točka kombinirana steklena elektroda. hydrochloric acid sodium hydroxide automatic titrator potentiometric titration endpoint combined glass electrode true true false [U. Polajžer] Slovenski jezik Angleški jezik Diplomsko delo 2013-06-05 17:45:12 2013-07-01 10:45:44 2022-05-12 23:51:20 2021-04-24 03:12:23 2013 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 577.164.2:620.193.4(043.2) 17476374 URN:SI:UM:DK:KUZRQKYU VS_Polajzer_Urska_2013.pdf VS_Polajzer_Urska_2013.pdf 1 ED10B145443D29C0EFF6414A2B617F92 d735dec43ec8952fe350e066eba4b968ec0b6017307533ddf9faac69d5a834e3 0a9a263c-7c0a-11eb-bb7a-00155d0001ca 20.500.12556/dkum/7785a1bf-cbcf-4510-a191-a992abcb38d4 https://dk.um.si/Dokument.php?lang=slv&id=56091 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0