Implementation of Coulometric Titration System at Constant Current for Certification of Primary Reference Materials

Автор(и)

  • Ronald Orlando Cristancho Instituto Nacional de Metrología – INM Bogotá, D.C., 111321 Colombia, Колумбія
  • Andres Felipe Peralta Instituto Nacional de Metrología – INM Bogotá, D.C., 111321 Colombia, Колумбія
  • Henry Torres Instituto Nacional de Metrología – INM Bogotá, D.C., 111321 Colombia, Колумбія

DOI:

https://doi.org/10.24027/2306-7039.1A.2017.100251

Ключові слова:

Measuring, Certification, Coulometric method

Анотація

Coulometry is a primary method for measuring high purity substances. This is used to certify the primary reference materials required in a chemical analysis process. This paper describes the coulometric titration system developed by the National Metrology Institute (NMI) of Colombia for the certification of hydrochloric acid 0,1 mol·kg-1. In addition, it also shows preliminary studies for future development of and ethylenediaminetetraacetic acid disodium salt (EDTA-Na2) certification. 

The development of Coulometric method for purity certification of substances which have relevant importance for industries and academics in Colombia, provide metrology tools for ensuring traceability and quality of measurements in process of control and production apply to sectors such health, water and waste treatment, agriculture, food, chemical products, etc.

Біографія автора

Ronald Orlando Cristancho, Instituto Nacional de Metrología – INM Bogotá, D.C., 111321 Colombia

Professional specialized

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Опубліковано

2017-04-20