S.V. Prokunin, D.A. Vengina, V.I. Dobrovolskiy, N.G. Oganyan, A.N. Shchipunov
FSUE “VNIIFTRI”, Mendeleevo, Moscow region, Russia
prokunin@vniiftri.ru
Al’manac of Modern Metrology № 1 (33) 2023, pages 36–41
Abstract. In the paper is discribed the preparation method of buffer solution for interlaboratory and international comparisons. This technique was developed by scientists of All-Russian Scientific Research Institute of Physicotechnical and Radio Engineering Measurements during the preparation of samples for international comparisons in the field of measuring the hydrogen index of borate buffer solution. According to the measurement results, the offered method allows to prepare the homogeneous and stable buffer solutions.
Keywords: pH index, pH-metry, buffer solution, comparison, Harned cell.
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