Off-campus UMass Amherst users: To download dissertations, please use the following link to log into our proxy server with your UMass Amherst user name and password.
Non-UMass Amherst users, please click the view more button below to purchase a copy of this dissertation from Proquest.
(Some titles may also be available free of charge in our Open Access Dissertation Collection, so please check there first.)
Improvements in sample preparation and introduction for inductively coupled plasma-mass spectrometry incorporating microwave energy
The area of atomic spectrometry has long suffered from inefficient sample preparation and introduction systems. Microwave heating can be a powerful technique for improving these systems but has tending not to be well understood and used in analytical chemistry. The purpose of this work has been to use microwave energy in order to improve sample preparation and introduction for plasma source spectrometry. An objective of this work has been to develop an on-line pressurized microwave digestion system. This system was developed to be capable of digesting difficulty soluble organic materials with nitric acid alone rapidly while reducing possibilities for contamination and providing the possibility for automation. ^ The use of microwave energy has been considered as a technique for desolvating an aqueous aerosol prior to solvent removal using a Nafion dryer. The purpose of this system was to increase the efficiency of sample introduction to a plasma source mass spectrometer. In order to accomplish this some fundamental studies of microwave interaction with water droplets were performed and a theoretical background was developed. ^
"Improvements in sample preparation and introduction for inductively coupled plasma-mass spectrometry incorporating microwave energy"
(January 1, 1999).
Electronic Doctoral Dissertations for UMass Amherst.