Equipment
ETHOS UP Microwave Digestion System
Microwave digestion is a commonly used digestion technique to dissolve (digest) different organic or inorganic samples by using of various acids in order to prepare samples for elemental analsis (measured by ICP-MS, IC-OES etc.). Digestion means the decomposition of a sample in strong acids such as nitric, sulfuric, perchloric and other acids in order to obtain the sample in liquid form. Small amount of sample (up to 250 mg) and various volume of acids are weighed in the teflon/quartz tube. The amount and the type of the acid used for digestion depends on the sample composition (chemical and mineralogical composition) where higher temperature and the addition of HF acid are mostly needed for geological samples, industrial, construction and demolition waste, sediments and other samples contain silicates. Decomposition usually takes up to an hour, depending on the complexity of the sample.
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