Study On Action Of Organic Reagents In Flame Atomic Absorption Spectrometry And Its Application

This dissertation consists of four chapters. The review of references is given in the first chapter. The influence of three types of organic reagent systems on analytical behaviors of metal, such as Mo, in the FAAS were given in the following three chapters and discussed the mechanism.Chapter 1: Advances in the studies of the organic reagent action in FAAS and its application were particularly reviewed .Chapter 2: The influence of single organic reagent on analytical behaviors of Mo in FAAS was investigated, and the mechanism was also discussed. The results indicate that only few organic reagents have enhancing sensitivity by combusting energy, most by structure of organic reagent. Organic reagents system was the best in enhancement effect and increasing selectivity.Chapter 3: The influence of three types surfactants on analytical behavior of MoWas studied by atomic absorption spectrometry in an air-acetylene flame. The relative mechanism was discussed from physics to chemistry, different organic reagent has different enhancement effect for Mo. surfactant is much marked enhancement effect and increasing selectivity.Chapter 4: The influence of double organic reagents on analytical behavior of Mo was studied by atomic absorption spectrometry in an air-acetylene flame. The results indicate that in fairly mixed double organicreagents system there is much marked enhancement effect and increasingselectivity. The mechanism was also discussed.Chapter 5: With Moore method duality complexes and multi complexes(such as tentary complex) were studied in FAAS to give the constitute and proportion of ligand complexes.Chapter 6: The studied method had been applied to determination of Mo in lower alloy steel with satisfactory results.Chapter 7:conclusion...