publication . Article . 2017

Development of certified reference material of mineral composition of natural water designed to control of turbidity measurement accuracy

Liudmila I. Gorjaeva; Elena L. Lebedeva;
Open Access Russian
  • Published: 01 Jun 2017 Journal: Standartnye Obrazcy, volume 13, issue 1, pages 27-36 (issn: 2077-1177, Copyright policy)
  • Publisher: Ural Research Institute of Metrology
Abstract
Introduction. The results of development of a certified reference material (CRM) of mineral composition of natural water are presented. A solution prepared from the material of the CRM specimen imitates mineral composition of natural surface water. The certified values are mass fractions of nitrate ions, chloride ions, fluoride ions, and total iron and turbidity according to formazine scale. Materials and methods. The certified values of mass concentrations of the components were determined using calculated experimental evaluation procedure;the certified turbidity value was determinedusing the certified turbidimetric method. Results. The relative expanded uncert...
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Medical Subject Headings: fungiintegumentary systemfood and beverages
free text keywords: мутность, нитрат, фторид, хлорид, общее железо, вода природная, формазин, турбидиметрия, стандартный образец, turbidity, nitrate, fluoride, chloride, total iron, natural water, formazine, turbidimetry, certified reference material, lcsh:Technology, lcsh:T, Turbidity, Mineral composition, Formazine, chemistry.chemical_compound, chemistry, Proficiency testing, Natural surface, Natural water, Environmental chemistry, Analytical chemistry, Mass fraction, Certified reference materials
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