The Design And Development Of Supercritical Fluid Chromatoggraphy Workstation

Supercritical fluid chromatography is a common method of chemical analysis now.It has the advantage of wide measuring range,fast analysis speed and good stability,so it has been widely used in many fieldWith the rapid development of computer technology,many important electronic analysis equipments can’t work independently without computers.Of course,the chromatograph,a mixture of separation and a composition of electronic testing equipment,is no exception.The hardware technology of chromatography,with a century of continuous development and improvement,has matured since the chromatographic separation technology was found in 1901.However,the corresponding software systems are not good enough due to the diversification of customer needs,large degree of design flexibility and irrational system architecture,which makes the whole chromatographic system performance greatly reduced.So a well-designed software workstation system which not only meets user requirements,but is easy to extend and maintain in the future, is very important.The chromatography workstation,as a kind of software system，combined with computer technology, can control the chromatographic instrument system, besides, which can also detect and analyze the output signal.We use MFC technology combined with the object-oriented thought to complete the user rights management module, equipment control and method of management module, spectrum graph display and processing module and communication module, besides,we use design patterns to increase the flexibility of the system for the design and implementation of some key classes based on the system for further expansion and maintenance.The chromatography workstation mainly has the following features:1)This paper describes the basic composition and workflow of the supercritical fluid chromatograph and completes the overall architecture of the workstation software;2) It can carry out effective control and management of the equipments;3) It can display spectrogram curve, and can effectively spectrum peak detection, overlapping peak separation, chromatogram baseline correction and a series of quantitative calculation;4) It can save and manage the historical data, and can print the analysis report.