Reviews background of atomic absorption spectrometry techniques. Discusses problems encountered and precautions to be taken in determining trace elements in the parts-per-billion concentration range and below. Concentrates on determining chromium in biological samples by graphite furnace atomic absorption. Considers other elements, matrices, and…

This report prepared for the California State Postsecondary Education Commission concerns base factor calculations for comparison institutions and study survey instruments. The report is divided into three sections. The first section, which comprises most of the volume, presents documentation for the calculation of space factors used in the…

Effective evaluation of educational software is a key issue for successful introduction of advanced tools in the curriculum. This paper details to developing and evaluating a tool for computer assisted learning of science laboratory courses. The process was based on the generic instructional system design model. Various categories of educational…