A description is given of an inexpensive nuclear magnetic resonance (NMR) spectrometer suitable for use in advanced laboratory courses. Applications to the nondestructive analysis of the oil content in corn seeds and in monitoring the crystallization of polymers are presented. (SK)

Explains two approaches to the automatic arrest of a potentiometric titration. (SA)

Presents part two on the use of the detection of thermoluminescence as an analytical tool for the chemistry laboratory and allied science. This part discusses instrumentation used and investigates recent developments in instrumentation for thermoluminescence. (HM)

Provides the electronic circuit schematic for the construction of a green vegetation sensor, the directions for its use, and suggestions for student projects. (JJK)

These hearings focused on various topics and issues related to the fiscal year 1985 budget request of $1.5 billion for the National Science Foundation (NSF), which represents a 13 percent increase over the 1984 level, as well as on NSF policies. Witnesses, representing government or scientific and technical organizations not directly part of the…

Describes the trend toward the use of electronic instrumentation to monitor and measure various parameters in chemical reactions. Stresses that a knowledge of the operational relationships involved in such instruments is essential for students beginning in science. Discusses electrostatic charges, semiconductor crystals, electronic conductors,…

A gas chromatography (GC) mass spectroscopy (MS) system recently developed by Hewlett-Packard (HP-5987 GC/MS/Data System) is described, illustrating the technological advances that have been achieved with the system. Examples of the data processing and output process are provided to demonstrate the capabilities and application of the system to…

Discusses problems and pitfalls of working with single-pan balances and methods used to advertise their accuracy. Investigated manufacturers knowledge of buoyancy effects, relating provisions and recommendations made by various companies. Provides a routine for intercalibration of weight using dummy weights of approximately known mass. (JM)

A review is given of electronic environmental meters available for use in schools. Included are conductivity, oxygen, pH, and temperature meters. Chemical test papers and kits for use in environmental studies are included. (BB)

Presents the construction aspects of a simple but reliable colorimeter made from locally available components. Notes the absorption range to be 400-750-nm. Lists seven experiments done on the instrument. (MVL)

Scientists/engineers from industry, universities, and government met to: review the status of scientific instrumentation in university research laboratories; explore new approaches to alleviating problems within existing budgetary constraints; and suggest ways for the National Research Council (NRC) to help. Federal agency, corporate, and…

Instructional videocassettes can provide efficient learning about analytical instrument maintenance and usage for scientists and technicians. Advantages of this approach include low cost to consumers, step-by-step instructions, and quality control of training. The programs currently available from three companies selling gas chromatographs and…

Describes development of microcomputer-controlled gamma scintillation spectrometer and chromatographic data analyzer, including design and construction of interface electronics and production of software. Includes diagrams of electric circuits and project evaluation indicating that both instruments functioned as intended. (JN)

Focuses on the activities of regional instrumentation centers that utilize the state-of-the-art instruments and methodology in basic scientific research. The emphasis is on the centers involved in mass spectroscopy, magnetic resonance spectroscopy, lasers, and accelerators. (SA)

This report presents information from phase I of a survey designed to develop quantitative indicators of the current national stock, cost/investment, condition, obsolescence, utilization, and need for major research instruments in academic settings. Data for phase I (which focused on the physical and computer sciences and engineering) were…