Repeatability of measurements of the potential oxygen flux density in the soil by the voltamperometric method

• Autorzy: Bieganowski A.
• Języki publikacji: EN

Abstrakty

EN

Influence of the measuring procedure on the repeatability of measurement of the potential oxygen flux density in the soil has been presented. Five measuring procedures were applied: measurements taken one directly after another, reinstallation of the electrode after each measurement , reinstallation of the electrode after each measurement with a simultaneous mechanical cleaning of surfaces, measurements with 15-min breaks between consecutive measurements, measurements with electrochemical "cleaning" of the electrode surface.The OFD value was determined by a voltamperometric method using a tri-electrode measuring system. It was found out that the best repeatability can be obtained by repeating the measurement with 15-min (or longer) time intervals.

Słowa kluczowe

EN

soil aeration; measurement; oxygen diffusion rate; soil; oxygen flux density; voltammetry; agrophysics

• Wydawca: -
• Czasopismo: Acta Agrophysica
• Rocznik: 2000
• Tom: 35
• Opis fizyczny: p.5-14,fig.

Twórcy

autor

Bieganowski A.

• Polish Academy of Sciences, Doswiadczalna 4, 20-290 Lublin 27, P.O.Box 201, Poland

Bibliografia

• 1.Armstrong W.: The relationship between oxidation-reduction potentials and oxygen-diffusion lewis in some waterlogged organic soils. J. Soil Sci., 18, 27-34, 1967.
• 2.Bieganowski A.: Ocena mikrodyfuzji tlenu w glebie na podstawie krzywej woltamperometrycznej redukcji tlenu. Rozprawa doktorska. Instytut Agrolizyki PAN, Lublin, 1997.
• 3.Bieganowski A., Malicki M.A.: The problem of the Pt cathode driving potential change velocity in the chronovoltammetric measurement of soil oxygen diflusivity. Proc. Int. Conf. "Role of Soil in Functioning of Ecosystems". PTGleb-IA PAN - UMCS, I.ublin, Poland, 1999.
• 4.Birkle D.E., Letey J., Stolzv L.H., Szuszkiewicz T.E.: Measurements of oxygen diffusion rates with the platinum microelectrode. II. Factors influencing the measurement. Hilgardia, 35, 555-566, 1964.
• 5. Black J.D.F., Buchanan A.S.: Polamgraphic reduction of oxygen at platinum surface in relation to the measurement of oxygen flux in soils. Australian J, Chemistry, 19, 2169-2174, 1966.
• 6. Callebaut F., Balcaen M A, Gabriels D., De Boodt M.: Data acquisition system for field determination of redox potential, oxygen diffusion rate and soil electrical resistance. Med. Pac. Land- bouw, Rijksuniv. Gent, 45(1), 15-29, 1980.
• 7. Carnell R,, Anderson M.A.: A techique for extensive field measurement of soil anaerobism by rusting of steel rods, forestry, 59,129-140. 1986.
• 8.Gliński J., Stępniewski W.: Soil Aeration and its Role for Plants. CRC Press Inc., Florida, US.A, 1985.
• 9.Laitinen H.A., Kolthoff I.M.: Voltammetry with stationary microeleclrodes of platinum wire. J. Am. Chem. Soc., 62, 1061-1079, 1940.
• 10.Lemon F„R., Erickson A.E.: The measurement of oxygen diffusion in the soil with Platinum microelectrode, Soil Sci. Soc. Am. Proc., 16, 160-163, 1952,
• 11.Lemon E.R., Pricks on A.E.: Principle of the platinum microclectrode as a method of characterizing soil aeration. Soil Sci., 79, 383-392, 1955.
• 12.Malicki M.A., Bieganowski A.; Chronovoltammetric determination of oxygen flux density in the soil. Int. Agrophysies, 13, 273-281, 1999.
• 13.Malicki M.A,, Kotliński ,J., Bieganowski A,: A setup for automatic recording of the current-voltage relationship in the electrodes-soil system as applied for estimation of the soil oxygen mierodiffusion. 6th Int. Conf on Agrophysies. IA PAN Lublin, Poland, 1997.
• 14. Malicki M., Walczak R.: A gauge of die redox potential and the oxygen diffusion rale in the soil, with an automatic regulation of cathode potential. Zesz. Probl. Post. Nauk Roln., 220,447-451, 1983.
• 15. Mc Intyre D.S.: The platinum microelectrode method for soil aeration measurement. Adv. Agron., 22, 235-283, 1970.
• 16.Oden S.: Electrometric methods for oxygen studies in water and soil, IV. fundamental problems involved with the design and use of oxygen diffusionelectrodes. Grundforbattring, 3, 117-210, 1962.
• 17.Rankin J.M, Sumner M.E,: Oxygen flux measurement in unsaturated soils. Soil Sci.Soc. Am. Proc., 42, 869-873, 1978.
• 18.Rickman R.W., Letey J., Aubertin G.M., Stolzy L.H.: Platinum microelectrode poisoning factors. Soil Sci.Soc. Am. Proc., 32, 204-20R, 1968.
• 19.Sawyer D.T., Interrante L,V,: Electrochemistry of dissolved gases. 11. Reduction of oxygen at platinum, palladium, nickel and other metal electrodes. J. Electroanalytical Chem., 2, 310-327, 1961.
• 20.Stępniewski W.S.: The usefulness of the tip-point micro electrode in the measurement of ODR in soil. Roczn. Glebozn, 30, 15-23, 1979.