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  • 1
    Electronic Resource
    Electronic Resource
    Polarographic determination of zinc and manganese in succinic acid (1971)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 254 (1971), S. 353-355 
    Details
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Summary Zinc and manganese develop well defined waves in 0.1 M succinic acid at pH ∼ 3.5 and 6.0, respectively. Both the waves are diffusion controlled in nature. Zn wave does not develop any maxima while Mn does, which is suppressed by using 0.005% gelatin. Their half-wave potentials are separated by 0.47 V, which renders their simultaneous determination possible.
    Notes: Zusammenfassung Zn und Mn geben gut ausgebildete diffusionskontrollierte Stufen in 0,1 M Bernsteinsäure-Lösung bei pH ∼ 3,5 bzw. 6,0. Zn entwickelt keine Maxima, während die von Mn durch 0,005% Gelatine unterdrückt werden. Da die Halbstufenpotentiale um 0,47 V auseinanderliegen, ist eine gleichzeitige Bestimmung beider Ionen möglich.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00423458
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Amperometric determination of Se(IV) with lead(IV) acetate (1974)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 272 (1974), S. 125-125 
    Details
    ISSN: 1618-2650
    Keywords: Best. von Selen(IV) mit Blei(IV)-acetat ; Amperometrische Titration
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00445709
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Polarographic behaviour of copper(II), nickel(II), Tellurium(IV) and uranium(VI) in glycolic acid solution (1974)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 272 (1974), S. 288-288 
    Details
    ISSN: 1618-2650
    Keywords: Verhalten von Kupfer(II), Nickel(II), Tellur(IV), Uran(VI) ; Polarographie ; Glykolsäurelösung
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00431347
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Polarographic determination of Cu, Cd, Pb, Bi and Tl in succinic acid (1972)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 259 (1972), S. 123-126 
    Details
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Summary Copper, cadmium, lead, bismuth, and thallium develop well defined polarograms in 0.1 M succinic acid at pH ∼ 3.0 in presence of 0.005% gelatin (except Cu which requires 0.01% gelatin). The polarograms of all these metal ions are diffusion controlled with E 1/2 at −0.07 V, −0.60 V, −0.43 V, −0.11 V, and −0.50 V vs. S.C.E., respectively. Since the half wave potentials of some of the metal ions are well separated, their simultaneous polarographic determination is possible (Cu/Pb, Bi/Pb, Pb/Zn, Cu/Cd).
    Notes: Zusammenfassung Die genannten Metalle liefern gut ausgebildete diffusionskontrollierte Polarogramme in 0,1 M Bernsteinsäurelösung bei pH ∼ 3,0 in Gegenwart von 0,005% Gelatine (0,01% bei Cu). Die Halbstufenpotentiale betragen: −0,07 V, −0,60 V, −0,43 V, −0,11 V bzw. −0,50 V (gegen GKE). Da sie teilweise gut voneinander getrennt sind, können Bestimmungen dieser Metalle nebeneinander ausgeführt werden (Cu/Pb, Bi/Pb, Pb/Zn, Cu/Cd).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00424341
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Polarographic determination of Pb, Tl, Bi and Sb in ethylenediamine in presence of mannitol (1973)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 263 (1973), S. 206-208 
    Details
    ISSN: 1618-2650
    Keywords: Best. von Blei, Thallium, Wismut, Antimon ; Polarographie ; Äthylendiaminlösung, Mannitzusatz
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Summary Pb, Tl, Bi and Sb yield well defined polarograms in 1 M ethylenediamine in presence of 3% mannitol, with half-wave potentials at − 0.71 V, − 0.51 V, − 0.60 V and − 1.10 V, respectively. Only Pb and Tl develop maxima which can be suppressed by 0.02% gelatin. Presence of mannitol prevents the precipitation of Pb, Bi, and Sb in the alkaline solution. Simultaneous determinations of Pb/Tl, Bi/Sb, and Pb/Sb can be carried out.
    Notes: Zusammenfassung Gut ausgebildete Polarogramme kann man von diesen Elementen in 1 M Äthylendiamin in Gegenwart von 3% Mannit erhalten. Die Halbstufenpotentiale liegen bei − 0,71 V (Pb), − 0,51 V (Tl), − 0,60 V (Bi) und − 1,10 V (Sb). Maxima, die im Falle von Pb und Tl gebildet werden, können durch 0,02% Gelatine unterdrückt werden. Durch Mannit wird die Fällung von Pb, Bi, und Sb in der alkalischen Lösung verhindert. Simultanbestimmungen von Pb/Tl, Bi/Sb und Pb/Sb sind möglich.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00428330
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Polarographic behaviour of selenium(IV) in glycolic acid (1974)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 270 (1974), S. 205-205 
    Details
    ISSN: 1618-2650
    Keywords: Verhalten von Selen(IV) ; Polarographie ; Glykolsäure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00445959
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  • 7
    Electronic Resource
    Electronic Resource
    Polarographic determination of uranium and lead in presence of each other (1972)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 276 (1972), S. 69-69 
    Details
    ISSN: 1618-2650
    Keywords: Best. von Uran(VI), Blei(II) ; Polarographie ; Glykolsäurelösung
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00423558
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    Paper (German National Licenses)
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