2018
DOI: 10.32446/0368-1025it.2018-11-3-5
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National primary standard for the units of mass fraction and mass (molar) concentration of inorganic components in aqueous solutions based on gravimetric and spectral methods GET 217–2018

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“…High purity deionized water (>18 MΩ) from a Adrona Crystal B Ultrapure water purification system (ADRONA SIA Process and Laboratory Systems, Riga, LATVIA) was used throughout this work for preparation and dilution of samples. Lead (Pb), cadmium (Cd), potassium (K) and copper (Cu) solutions directly traceable to the State Primary Standard of the unit of mass fraction and unit of mass (molar) concentration of inorganic components in aqueous solutions based on gravimetric and spectral methods GET 217-2018 were used for preparation standard additions [9].…”
Section: Reagents and Standardsmentioning
confidence: 99%
“…High purity deionized water (>18 MΩ) from a Adrona Crystal B Ultrapure water purification system (ADRONA SIA Process and Laboratory Systems, Riga, LATVIA) was used throughout this work for preparation and dilution of samples. Lead (Pb), cadmium (Cd), potassium (K) and copper (Cu) solutions directly traceable to the State Primary Standard of the unit of mass fraction and unit of mass (molar) concentration of inorganic components in aqueous solutions based on gravimetric and spectral methods GET 217-2018 were used for preparation standard additions [9].…”
Section: Reagents and Standardsmentioning
confidence: 99%