DS EN 14627:2005 Foodstuffs - Determination Of Trace Elements - Determination Of Total Arsenic And Selenium By Hydride Generation Atomic Absorption Spectrometry (Hgaas) After Pressure Digestion Describes two methods, one method for the determination of total arsenic and another method for the determination of selenium in foodstuffs by hydride generation atomic absorption spectrometry (HGAAS)