摘要:

The design of a data logger to print voltages from eight channels at a programmed time interval is described. Software interfacing of the numeric printer is done With minimum hardware to print voltages, time interval and the number of measurement-cycle.

ISSN:1073-9149    

DOI:10.1080/10739148208543558

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor

摘要:

A low cost, still versatile instrument for kinetic analyses with the variable time approach is described. Signals changing with a rate of a few mV/s up to tens V/s can be handled and time intervals in the range of a few ms up to 1000 s can be measured with a precision better than 0.2% in most cases. Data for the kinetic determination of creatinine in urine by spectrophotometry and potentiometric monitoring and of ascorbic acid by a stopped-flow spectrophotometer are presented to demonstrate the capabilities of this instrument.

ISSN:1073-9149    

DOI:10.1080/10739148208543559

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor

摘要:

This article describes a spectrometer used for recording rotationally-resolved spectra of small molecules. The spectrometer consists of a high resolution scanning monochrom-ator and photon counting detector interfaced to a dedicated minicomputer. The interface is very versatile, providing operation in several modes with minimum demands on the computer. This allows the computer to run in a foreground-background mode in which data previously acquired can be analyzed or new software developed while simultaneously acquiring new data with almost complete invisibility.

ISSN:1073-9149    

DOI:10.1080/10739148208543560

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor

摘要:

A microcomputer interface for the control of valve position using stepping motors is described. Designed to be used on Z-80 microcomputers employing the IEEE-696/S-100 bus, the interface is easy to program and has been used in the control of a laboratory-scale continuous stirred-tank reactor.

ISSN:1073-9149    

DOI:10.1080/10739148208543561

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor

摘要:

An instrument is described that allows for the simple interfacing of packed glass column gas chromatography with microwave induced plasma emission spectroscopic detection (GC-MIP) for trace organic, organometallic, or inorganic type analyses. The final GC-MIP instrumentation is an all glass-lined system, with an open-split type interface between the end of the GC column and the plasma discharge tube of the MIP detector. This interface permits the rapid and efficient venting of the GC solvent front, together with an efficient transfer of the sample analytes from the GC column to the plasma discharge tube. The overall instrumentation is inexpensive, simple to construct, relatively easy to operate, thereby permitting the routine use of GC-MIP for a wide variety of metal/non-metal containing organic, inorganic, or organometallic species. True metal speciation is also possible via this instrumental approach.

ISSN:1073-9149    

DOI:10.1080/10739148208543562

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor

摘要:

Conversion of the combination EI/FD source supplied by Kratos for the MS-50 mass spectrometer to a combination FD/FAB source is described. Sensitivities in the combination source are equivalent to those of the stand alone FAB source supplied by Kratos and the EI/FD source. Some compounds could be analyzed by FAB only, others by FD only and a third group were susceptible to both techniques. The advantage of the combination source is that both techniques may be used without having to change ion sources or perform extensive instrumental manipulations.

ISSN:1073-9149    

DOI:10.1080/10739148208543563

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor

摘要:

This paper describes the design and construction of a digital-to-digital interface for a laboratory microcomputer. In this application, signals from a laser-enhanced ionization experiment are processed with a boxcar signal averager which is interfaced to a Commordore PET 4032 microcomputer. Software has been developed for the microcomputer which performs various operations on the data and prints the values for the average analyte signal, average standard signal, analyte-to-standard ratio, average noise, and analyte signal-to-noise ratio. This interface is also applicable to other laboratory instruments with binary-coded decimal outputs.

ISSN:1073-9149    

DOI:10.1080/10739148208543564

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor