Zobrazeno 1 - 7 of 7 pro vyhledávání: '"Lennart Pehrsson"'
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Acid-base titrations by stepwise addition of equal volumes of titrant with special reference to automatic titrations—II Theory of titration of mixtures of acids, polyprotic acids, acids in mixture with weak bases, and ampholytes
Autor: Lennart Pehrsson, Sten Johansson, Folke Ingman
Publikováno v: Talanta. 23:781-788
A general method for evaluating titration data for mixtures of acids and for acids in mixture with weak bases is presented. Procedures are given that do not require absolute [H]-data, i.e., relative [H]-data may be used. In most cases a very rough ca
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab248232b9f9a58e10b570cf71085ffd
https://doi.org/10.1016/0039-9140(76)80087-2
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3
Acid-base titrations by stepwise additions of equal volumes of titrant with special reference to automatic titrations—I Theory, discussion of the gran functions, the hofstee method and two proposed methods for calculating equivalence volumes
Autor: Axel Johansson, Folke Ingman, Lennart Pehrsson
Publikováno v: Talanta. 23:769-780
The range of acid stability constants over which the Gran functions are applicable in evaluating acid-base titrations at normal concentrations is studied and found to be quite narrow. Alternatively, the titrations can be evaluated by using non-approx
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9727b9ac438b991bce23c92c4e9d695
https://doi.org/10.1016/0039-9140(76)80086-0
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4
Acid-base titrations by stepwise addition of equal volumes of titrant with special reference to automatic titrations—III Presentation of a fully automatic titration apparatus and of results supporting the theories given in the preceding parts1
Autor: Folke Ingman, Lennart Pehrsson
Publikováno v: Talanta. 24:79-85
This paper forms Part III of a series in which the first two parts describe methods for evaluating titrations performed by stepwise addition of equal volumes of titrant. The great advantage of these methods is that they do not require an accurate cal
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::87363fd70cc4dae903e9fda7eb0ea6fc
https://doi.org/10.1016/0039-9140(77)80153-7
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5
Acid-base titrations by stepwise addition of equal volumes of titrant with special reference to automatic titrations—IV Photometric titration of an acid1
Autor: Folke Ingman, Lennart Pehrsson
Publikováno v: Talanta. 24:87-90
In Part I of this series, evaluation methods for potentiometric titrations of acids performed by stepwise addition of titrant were introduced. These methods are non-approximative and may therefore in principle be applied to titrations of acids of any
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::03a480919be208aab53950a3f4ba5ebe
https://doi.org/10.1016/0039-9140(77)80154-9
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6
Automatic titration by stepwise addition of equal volumes of titrant. Part II. An automatic titration system
Autor: Axel Johansson, Lennart Pehrsson
Publikováno v: The Analyst. 95:652
A fully automatic titration system is described. The system carries out transfer of the sample by pipette, and dilution, titration and washing of electrodes and titration vessels. Titrations are performed by adding titrant stepwise in equal volumes t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::34c6f6374759afc6447e703cbb1e7450
https://doi.org/10.1039/an9709500652
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