DS EN 16317:2013 Fertilizers - Determination Of Trace Elements - Determination Of Arsenic By Inductively Coupled Plasma-Atomic Emission Spectrometry (Icp-Aes) After Aqua Regia Dissolution Defines a method for the determination of the content of arsenic in fertilizers using inductively coupled plasma atomic emission spectrometry (ICP-AES) after aqua regia dissolution.