Microelemental analysis

Ion chromatography has been successfully applied to the quantitative analysis of ions in many diverse types of industrial and environmental samples. The technique has also been valuable for microelemental analysis, e.g. for the determination of sulphur, chlorine, bromine, phosphorus and iodine as heteroatoms in solid samples. Combustion in a Schoniger oxygen flask (Section 3.31 )is a widely used method of degrading such samples, the products of combustion being absorbed in solution as anionic or cationic forms, and the solution then directly injected into the ion chromatograph. 

The purity of metal alkoxide was established with the help of quantitative yield of compound and with microelemental analysis. 

The microelemental analysis was carried out using a CHN-900 (Leco Corporation, St. Joseph, MI, USA) for carbon and hydrogen, a CHNS-932 (Leco Corporation, St. Joseph, MI, USA) for sulfur and a RO-478 (Leco Corporation, St. Joseph, MI, USA) for oxygen. The phosphorus content was... 

The microelemental analysis of TPPT after purification by liquid chromatography is reported in Table 2 together with... 

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