Described is an experiment to investigate the plasticizer content in polyvinyl chloride (PVC) products. The experiment is designed for college students using an instrumental analysis laboratory. (RH)

A questionnaire was mailed to 50 major chemistry departments, 112 smaller chemistry departments, and 25 chemical engineering (CE) departments. The survey (included in an appendix) consists of a series of questions on two broad subjects--the current inventory at the surveyed institutions and the needs for instrumentation. Responses were received…

Using fourier transformation methods in nuclear magnetic resonance has made possible increased sensitivity in chemical analysis. This article describes these methods as they relate to magnetization, the RF magnetic field, nuclear relaxation, the RF pulse, and free induction decay. (CW)

Discussed are two techniques that can be used to directly test the theory that the plates which make up the crust of the earth are still moving. Described are the use of satellite laser ranging and very long baseline interferometry. Samples of data and their analysis are provided. (CW)

Results from the analysis of land and marine records from the past century are presented. It is indicated that the planet earth has warmed about one-half of a degree celsius. The uncertainty of these measurements and future warming trends are discussed. (CW)

Presents a series of four applications of data acquisition, system control, and data analysis using personal computers. Covers topics of pilot plant information and control, automation of drug safety evaluation, analysis and characterization of petroleum resources, and high-speed analog-digital conversion connections. Part three of a series on…

The construction and use of an instrument to monitor ultraviolet radiation from the sun are discussed. A diagram of the ultraviolet-B radiometer which is connected to a digital voltmeter is provided. (CW)

Reported are the results of a survey conducted to identify which analytical methods are most commonly used in nonacademic analytical laboratories. Laboratory supervisors' ratings of various aspects of chemical education are included. (CW)