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State primary standard of hydrogen ions activity in aqueous solutions GET 54-2019
https://doi.org/10.32446/0368-1025it.2022-9-14-17
Abstract
The composition of the State primary standard of hydrogen ions in aqueous solutions GET 54-2019 is presented. The standard includes measures of acidity and a coulometric installation device, the measurement range of the hydrogen index is from 0.01 to 12.00. The applied methods and reproducing the values of the hydrogen index GET 54-2019 allowed to reduce the total standard uncertainty to 0.0012, which corresponds to the world best analogues of pH standards. The metrological characteristics of GET 54-2019 and the results of international key comparisons to determine the hydrogen index of borate buff er solution CCQM-K19.2018 are presented. The State primary pH standard GET 54-2019 is used in many industries, science and technology, a special place for pH measurement is in the chemical, pharmaceutical and food industries, where it is very important to control the hydrogen index at all stages of the production cycle. Recently, the control pollution of water bodies by human waste has increased, so pH measurements have become in environmental monitoring. The improvement of the GET 54-2019 allowed to expand its scope by increasing the range of measurements of the hydrogen index in the highly acidic region. It has become possible to increase the accuracy of measurements in studies of the acidity of the human gastrointestinal tract, which reduces the risk of making an incorrect diagnosis.
About the Authors
S. V. Prokunin
Russian Metrological Institute of Technical Physics and Radio Engineering
Russian Federation
Russian Federation
Sergey V. Prokunin
Mendeleevo, Moscow region
A. N. Shchipunov
Russian Metrological Institute of Technical Physics and Radio Engineering
Russian Federation
Russian Federation
Andrey N. Shchipunov
Mendeleevo, Moscow region
V. I. Dobrovolskiy
Russian Metrological Institute of Technical Physics and Radio Engineering
Russian Federation
Russian Federation
Vladimir I. Dobrovolskiy
Mendeleevo, Moscow region
D. A. Vengina
Russian Metrological Institute of Technical Physics and Radio Engineering
Russian Federation
Russian Federation
Daria A. Vengina
Mendeleevo, Moscow region
References
1. Smeshlivaya N. V., Semenchenko S. M., Dependence of diameter of whitefi sh hydrated eggs on the water pH, Vestnik rybohozyajstvennoj nauki, 2014, vol. 1, no. 4(4), pp. 73–77. (In Russ.)
2. Parada S. G., Anomalies of the hydrogen index in the bottom sediments of the Black Sea shelf as a sign of the presence of hydrocarbon deposits, Neftyanoe hozyajstvo, 2020, no 2, pp. 8–11. (In Russ.) https://doi.org/10.24887/0028-2448-2020-2-8-11
3. Fayzullin D. D., Mavrin G. V., Eff ect of the pH of the emulsion on the process of ultrafi ltration of petroleum products and nonionic surfactants, Membrany i membrannye tekhnologii, 2017, vol. 7, no 5, pp. 352–357. (In Russ.) https://doi.org/10.1134/S2218117217040046
4. Prokunin S. V., State primary standard of the pH index of hydrogen ion activity in aqueous solutions of GET 54-2011, Russian metrological encyclopedia, Ed. by V. V. Okrepilov, St. Petersburg, IIF Liki Rossii Publ., 2015, vol. 1, p. 383. (In Russ.)
5. Karpov O. V., Zdorikov N. N., Kopaneva A. I., Maksimov I. I., Seiku E. E., Sobol V. V., On the approval of the state primary standard of pH, Zakonodatel’naya i prikladnaya metrologiya, 1998, no. 5, p. 7. (In Russ.)
6. Nalapko Yu. I., Bolotina L. A., Li A. V., Dikaya E. A., Diagnostic capabilities of endoscopic clinical pH-metry, Zhurnal Medicina neotlozhnyh sostoyanij, 2013, no. 6(53), pp. 129–133. (In Russ.)
7. Potakhin S. N., Shapkin Yu. G., Reshetov P. V., Kapralov S. V., Klimashevich V. Yu., Belikov A.V., Monitoring of gastric secretion and early diagnosis of bleeding recurrence in ulcerative gastroduodenal bleeding, Saratovskij nauchno-medicinskij zhurnal, 2011, vol. 7, no. 4, pp. 957–962. (In Russ.)
8. Asakai T., Maksimov I., Prokunin S., et al, Metrologia, 2021, vol. 58, no. 1A, 08020. https://doi.org/10.1088/0026-1394/58/1A/08020
Review
For citations:
Prokunin S.V., Shchipunov A.N., Dobrovolskiy V.I., Vengina D.A. State primary standard of hydrogen ions activity in aqueous solutions GET 54-2019. Izmeritel`naya Tekhnika. 2022;(9):14-17. (In Russ.) https://doi.org/10.32446/0368-1025it.2022-9-14-17
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