Die Tropfzeit-Abhängigkeit polarographischer Ströme bei konstantem QuecksilberzufluB

Stackelberg, Μ. v.; Wolf, D.; Schmidt, Helmut

doi:10.5189/revpolarography.11.41

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Td-tum1

Acids and Their1

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1964

1981

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Cited by 4 publications

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“…Wolf [179,180] used the dependence of the height of the kinetic wave on the drop period for the determination of the rate constant of an antecedent reaction. The drop period in these experiments was regulated by a periodic tapping on the end of the capillary; this kept the rate of mercury flow practically constant.…”

Section: Td-tummentioning

confidence: 99%

Catalytic and Kinetic Waves in Polarography

Mairanovskii¹

1968

129

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Section: Td-tummentioning

confidence: 99%

Catalytic and Kinetic Waves in Polarography

Mairanovskii¹

1968

129

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“…Work in the -keto acid series has dealt with the donation of protons to -keto acids (47) (196), current variations with drop time (899), kinetic currents (489, 947), and the determination of hydration constants for glyoxalic acid (507).…”

Section: Acids and Theirmentioning

confidence: 99%

Organic Polarography

Wawzonek¹,

Pietrzyk²

1964

Anal. Chem.

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Polarographische Untersuchungen an symmetrischen Triazacarbocyaninen in Acetonitril

Hellrung

1981

Helvetica Chimica Acta

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The reduction behaviour of thirteen symmetrical triazacarbocyanine dyes with different heterocycles in acetonitrile solution has been investigated by means of dcand ac-polarography, cyclic oscillopolarography and coulometry.The reduction mechanism has been found to be of the type eec with the first step being reversible and the second step being reversible to irreversible. Reduction potentials, transfer coefficients and specific currents of both steps have been measured (Ell2: -0,110 to -1.025 V vs. Ag/AgCl for the first step) and compared with known properties of carbocyanines and triazenium salts and to HMO calculations.The effect of substituents X has been studied on the compounds 1,3-diethyl-2-[( 1,3-diethyl-5 -Xbenzimidazolin-2-yliden)triazenyl] -5 -Xbenzimidazoliumtetrafluoroborate (1 a (X)) and 3 -ethyl-2 -[(3 -ethyl-5 -X-d4-1,3-triazolin -2 -y1iden)triazenyll-5-X-1,3-thiazolium-tetrafluoroborate (1 g (X)), and p-values of 0,36 and 0,72 V, respectively, have been found.Einleitung. -In den letzten 20 Jahren sind zahlreiche Arbeiten iiber das elektro-

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Die Tropfzeit-Abhängigkeit polarographischer Ströme bei konstantem QuecksilberzufluB

Cited by 4 publications

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Catalytic and Kinetic Waves in Polarography

Catalytic and Kinetic Waves in Polarography

Organic Polarography

Polarographische Untersuchungen an symmetrischen Triazacarbocyaninen in Acetonitril

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