TCVN 6496-2009 Soil quality.Determination of cadmium, chromium, cobalt, copper, lead, manganese, nickel and zinc in aqua regia extracts of soil.Flame and electrothermal atomic absorption spectrometric methods
2009TCVN 6496-2009 Soil quality.Determination of cadmium, chromium, cobalt, copper, lead, manganese, nickel and zinc in aqua regia extracts of soil.Flame and electrothermal atomic absorption spectrometric methods