The Construction And Research Of 3D Multi-functional Dynamical GC-MS Virtual Laboratory

As a new technology in the information technology field, virtual reality technology is used in science, technology, engineering, medicine, culture and entertainment. Virtual experiment technology, as one part of virtual reality technology, is becoming more and more matured, and has been recognized by educators and learners. Until now, various of virtual apparatus and experiment instances have been exploited by process simulation and planar technic. However, virtual reality software still can't meet the users'need on interaction and immersion. Therefore, the networking, staging, highly interactive virtual instruments and virtual laboratory have became a hot research topic.In this thesis, we choose gas chromatography-mass spectrometry (GC-MS) as the research object in virtual laboratory and virtual instrument due to its complicated, abstract and expensive properties in real operation. By using virtual laboratory for the analysis of whole process, the experimental procedures can be strengthened. Meanwhile, the learning efficiency can also be increased by showing the internal structure of GC-MS. Hence, the shortcomings of real-world GC-MS experimental could be overcomed by virtual experiment technology.Firstly, the feasibility for building GC-MS virtual experiment technology was analyzed base on virtual reality, virtual laboratories and teaching software research chromatography, in-depth study of the overall design of virtual labs. Then, to achieve the 3D interactive simulation of GC-MS experiments process and the accompanying workstation, a construction mode of the 3D multi-functional dynamical virtual laboratory based on virtools and flash technologies is proposed. Based on the chromatographic theory, the mathematical model of the relationship among parameters such as carrier gas flow rate, separation temperature, injection volume and retention time is constructed. By using flash scripting language, inquiry and analysis of Mass spectrum and the dynamic drawing of the total ionization chromatography under different separation conditions are achieved. In addition, many other functions including real-time trace evaluation are also been realized by virtools scripting language (VSL) and Building Blocks (BB). Based on XAMPP, the technology of JavaScript and HTML program, the data transmission between virtools and flash is realized.The GC-MS virtual laboratory developed in this thesis has strong sense of immersion functional, realistic interaction. The open gallery designed spectrum database improve the use-value, flexibility and scalability of this software. The new achievement developed in the construction of virtual devices, lay a solid foundation for the future complex systems. Meanwhile, this thesis has the significance of being used as reference for building other virtual laboratory of analytical instruments.