Desolvation with spray techniques

Alternative Sample Introduction Techniques Nonstandard sampling accessories such as laser ablation systems, flow injection analyzers, cooled spray chambers, desolvation equipment, direct injection nebulizers, aerosol dilution techniques, and automated sample delivery systems and dilators are considered critical to enhancing the practical capabilities of the technique. Their use has increased significantly over the past few years as ICP-MS has been asked to solve more and more diverse applieation problems. Chapter 17 reflects the increased interest in sampling accessories, especially in the area of specialized sample introduction and desolvation devices to reduce the impaet of conunon interferences with complex sample matrices. 

Elution with organic matrices, such as methanol, has been made possible by employing sample introduction systems able to remove the solvent from the aerosol stream (i.e. desolvation systems) or through electrothermal vaporization (ETV). In the latter case it has been confirmed that the ETV technique is preferable to using a cross-flow nebulizer-double pass spray chamber combination in terms of sensitivity and limits of detection. Desolvation systems also eliminate some polyatomic interferences caused by inorganic eluents (e.g. nitric acid, hydrochloric acid). ... 

---