Intercalibration of analytical procedures for analytes, included into harmonized program of hydrochemical monitoring for Selenga river basin
In 2012 harmonized program of water quality in the Selenga River basin was developed by Russian Hydrochemical Institute and Mongolian Institute of Meteorology and Hydrology, and endorsed by governments of both countries (Russia and Mongolia), what enables to work out unified approaches to ensuring of control system of analytical procedures quality between Russia and Mongolia.
In 2014 the second phase of intercalibration of measurement methods of the following was carried out: microelements (arsenic, cadmium, manganese, chromium, molybdenum, cobalt, nickel, aluminum), cations (lithium, sodium, potassium, magnesium, calcium, ammonium), anions (fluorides, chlorides, bromides, nitrites, nitrates, phosphates, sulphates), petroleum products and chemical oxygen demand. Measurements of only five indicators, such as hardness, calcium, phosphates, sulphates and chlorides, out of all data obtained from the Mongolian laboratories can be regarded as reliable and compatible with the Russian data. Training workshops have been held in Ulan-Ude for Mongolian specialists on methodology issues of surface waters and measurement quality control with the purpose of implementing of more selective and sensitive measurement methods of: microelements (arsenic, cadmium, manganese, chromium, molybdenum, cobalt, nickel, aluminum), cations (lithium, sodium, potassium, magnesium, calcium), anions (fluorides, nitrates, phosphates, sulphates). Also, a new high value equipment has been bought and present available equipment has been modernized (ion chromatograph and lamps for analysis of heavy metals by means of atom absorption) for Mongolian Central Laboratory in Ulaanbaatar.
