170135_inorganicventures_flipping

10:12 Contamina(on from the Analyst and Apparatus

Contamina(on from the apparatus: Tips

§ When sieving, use nylon sieves.

§ Ovens and muffle furnaces are obvious sources of contamination and should be replaced with flames if at all possible. § Microwave digestion in a closed Teflon (PFA) digestion vessel offers many obvious advantages over other forms of sample preparation

11:1 Acid Diges-ons of Inorganic Samples

Nitric Acid Diges-ons: Nitric acid* is used primarily in the prepara3on of inorganic sample types. ++ It is a very useful component in the destruc3on of organics but cannot by itself completely decompose organic matrices.

*All reference to HNO3 will mean 69% 'concentrated' nitric acid unless specified otherwise.

++ The conven3onal meaning of inorganic is intended along with the presence of low molecular weight water soluble organic cmpds. and organometallic cmpds. containing rela3vely small molecular weight organic components.