Abstract
The practical realisation of pH-measurements with Harned-cell type equipment used for the measurement of primary standards as recommended by IUPAC is shortly outlined. In contrast to the Harned-cell without transference, the glass electrode with a junction is preferred and more practical for field laboratories. The combined measurement uncertainty is evaluated step by step in a systematic way according to ISO-GUM for a sample pH-value measured using a glass type electrode system, that was calibrated with two certified pH-reference material solutions.
Keywords
- pH-measurement
- Hydrogen electrode
- pH-glass electrode
- Harned-cell
- Certified pH-reference materials
- CRM
- Uncertainty
- Calibration
- ISO-GUM
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References
Sørensen SPL, Enzymstudien II (1909) Über die Messung und die Bedeutung der Wasserstoffionenkonzentration bei enzymatischen Prozessen. Biochem Zeitschr 21:131–200, continuation 201–304
Buck RP, Rondinini S, Covington AK, Baucke FGK, Brett CMA, Camões MF, Milton MJT, Mussini T, Naumann R, Pratt KW, Spitzer P, Wilson GS (2001) Measurement of pH. Definition, standards, and procedures (IUPAC recommendations 2002). Working party on pH. Pure Appl Chem 74(11):2169–2200
Spitzer P, Pratt KW (2011) The history and development of a rigorous metrological basis for pH measurements. J Solid State Electrochem 15:69–76
Bates RG, Guggenheim EA (1960) Report on the standardization of pH and related terminology. Pure Appl Chem 1:163–168
Archer DG, Wang P (1990) The dielectric constant of water and Debye-Hückel limiting law slopes. J Phys Chem Ref Data 19(2):371
Tanaka M, Girard G, Davis R, Peuto A, Bignell N (2001) Recommended table for the density of water between 0 °C and 40 °C based on recent experimental reports. Metrologia 38:301–309
Pitzer KS (1991) Activity coefficients in electrolyte solutions, 2nd edn. CRC Press, Boca-Raton. ISBN 0849354153
Berdat D, Andres H, Wunderli S (2009) Development of suitable ISE measurement procedures for SI-traceable chemical activity determination. Chimia 63(10):671–677
Bastkowski F, Spitzer P, Eberhardt R, Adel B, Wunderli S, Berdat D, Andres H, Brunschwig O, Máriássy M, Fehér R, Demuth C, Gonzaga FB, Borges PP, da Silva Junior WB, Vospělová A, Vičarová M, Srithongtim S (2013) Pitzer ion activities in mixed electrolytes for calibration of ion-selective electrodes used in clinical chemistry. Accred Qual Assur 18:469–479
Covington AK, Bates RG, Durst RA (1985) Definition of pH scales, standard reference values, measurement of pH and related terminolohgy. Pure Appl Chem 57(3):531–542
Bates RG (1973) Determination of pH. Theory and practice, 2nd edn. Wiley, Hoboken. ISBN 0-471-05657-2
Spitzer P, Wunderli S (2013) Handbook of reference electrodes. In: Inzelt G, Lewenstam A, Scholz F (eds) Chapter 5.1: Reference electrodes for aqueous solutions. The hydrogen electrode. Springer, Berlin
Leito I, Strauss L, Koort E, Pihl V (2002) Estimation of uncertainty of routine pH measurement. Accred Qual Assur 7:242–249
Leito I, Kadis R (2010) Evaluation of residual liquid junction potential contribution to the uncertainty in pH measurement: a case study on low ionic strength natural waters. Anal Chim Acta 664(2):129–135
Tauber G (2010) Industrielle pH-Messung – Beiträge der Temperatur zur Messunsicherheit. Tech Mess 77(3):150–155
Tauber G (2009) Industrielle pH-Messung – Beiträge der Diffusionspotenziale zur Messunsicherheit. Tech Mess 76(6):308–316
Wilhelm T, Pechstein T (2010) Einflüsse realer Einsatzbedingungen auf die pH-Messung mit Glaselektroden. Tech Mess 77(3):140–149
Naumann R, Alexander-Weber Ch, Eberhardt R, Giera J, Spitzer P (2002) Traceability of pH measurements by glass electrode cells: performance characteristics of pH electrodes by multi-point calibration. Anal Bioanal Chem 374:778–786
pH-Messung—pH-Messung von wässerigen Lösungen mit pH-Glaselektroden und Abschätzung der Messunsicherheit, DIN 19268 (2007)
Water quality—Determination of pH. ISO 10523 (2008) 2nd edn
Degner R (2009) pH-Messung, Der Leitfaden für Praktiker. Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. ISBN 978-3-527-32359-3
Galster H (1990) pH-Messung, Grundlagen, Methoden, Anwendungen, Geräte, VCH-Verlagsgesellschaft. ISBN 3-527-27836-2
Spitzer P, Eberhardt R, Schmidt I, Sudmeier U (1996) Improved traceability of pH measurements. Fresenius J Anal Chem 356:178–181
Meinrath G, Spitzer P (2000) Uncertainties in determination of pH. Mikrochim Acta 135:155–168
Schwabe K (1976) pH-Messtechnik, 4th edn. Verlag Theodor Steinkopff, Dresden
Schwabe K (1980) pH-Messung. Akademie-Verlag, Berlin
Spitzer P (2001) Traceable measurements of pH. Accredit Qual Assur 6:55–60
Spitzer P, Adel B, Werner B, Jehnert D (2010) Zuverlässige Kalibrierung von pH-Messeinrichtungen. Tech Mess 77(3):156–161
Meinrath G, Spitzer P (2001) Importance of traceable pH measurements in science and technology. In: 166th PTB-Seminar, PTB-ThEx-25, Physikalisch-Technische Bundesanstalt, Braunschweig u. Berlin. ISBN 3-89701-903-5
Bates RG, Popovych O (1981) The modern meaning of pH. CRC Crit Rev Anal Chem 10(3):247–278
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Wunderli, S. (2020). Combined Measurement Uncertainty for pH-Values Using Certified Reference Materials in Potentiometric Measurements with Glass Electrodes. In: Medvedevskikh, S., Kremleva, O., Vasil’eva, I., Sobina, E. (eds) Reference Materials in Measurement and Technology. RMMT 2018. Springer, Cham. https://doi.org/10.1007/978-3-030-32534-3_23
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