 |
|
|
 Innovation and patent technique
Practical new patent number: ZL02267196X
Innovation design specialty:
·Circular column box design (column box temperature field is even, temperature control precision is high)Initiates in International
·Chromatographic analysis unit modularization design (it is multifunctional, work efficiency is high)Initiates in International
·All gas flux simultaneous digital display design (the precision of flux measure is high, use is convenient)Initiates in International
·High compositive temperature control circuit and fast outspread structure design (the reliability is high, maintenance and examine and repair are convenient)Keeps ahead in China
·Detection circuit micro-computer keystoke operation design (the reliability is high, operation and use are convenient)Keeps ahead in China
·Standardization unit combination design (assembly, servicing and technique service are convenient)Initiates in China
·Computer keyboard operation counteraccusation (include data processing function, operation and using are convenient)Keeps ahead in China
Main technology performance:
Temperature control
·The temperature control scope of column box: 10¡æ-400¡æ above indoor temperature, multistage temperature programming
·The detector and injector: 60¡æ-400¡æ
·The temperature programming velocity of column box: 0.1¡æ/min-30¡æ/min
·The repetition of temperature programming: ¡Ü1%
Sensitivity
·FID¡¡D¡Ü1¡Á10-11g£¯s (nC16)
·ECD¡¡D¡Ü1¡Á10-13g£¯ml(¦Ã£666 )
·TCD¡¡S¡Ý3000mV·mL£¯mg(benzene)
·FPD¡¡D¡Ü5¡Á10-12g£¯s(P)
The multifunction of one instrument (can install seven kinds of monitor analysis units)
·FID gas chromatography analysis unit: Be applicable to the microanalysis of organic compound
·ECD gas chromatography analysis unit: Be applicable to the pesticide retention analysis of organochlorine etc.
·TCD gas chromatography analysis unit: Be applicable to the gas, water and macro-analysis or semimicro analysis of organic compound
·FPD gas chromatography analysis unit: Be applicable to the micro analysis of sulfur compound and the pesticide retention analysis of organo phosphorous compounds
·NPD gas chromatography analysis unit: Be applicable to the micro analysis of nitrogen compound and the pesticide retention analysis of organo phosphorous compounds
·PID gas chromatography analysis unit: Be applicable to the trace analysis of benzene series compounds and the poisonous and harmful compounds analysis
You only need to purchase one GC9900 gas chromatography, and then purchase the needed gas chromatography analysis unit modules one-off or in batches according to the work need. In this way, you can assemble them by yourself into the instruments, which adapt to analyze all kinds of samples and can satisfy various analysis requests.
Innovation-put forward the idealized design
The technical development of gas chromatography represents in two aspects: the progress of gas chromatography and the development of chromatography application and request. The instrument and application are closely-related and they can promote and enhance mutually. Since the 20th century, because of the flying development of the electron technique, the calculator technique, the new materials and the new craft in instrument, gas chromatography has acquired smart development and homemade instrument has been improved and enhanced markedly. In the application aspect, because of the attention to quality, WTO, environment analysis and safe food agrochemical giblets testing in all trade, the marketable demand has been increased consumedly, at the same time, rigorous and various requests have been put forward to gas chromatography usage. In the last few years, there were many kinds of homemade gas chromatography and many product units and it had obtained obvious results in renewing the original and old instruments and the gap had been dwindled compared with overseas instrument, but we should admit the objective fact that homemade instruments have many gaps compared with imports, the copy circs still exist and the original innovation and the breakthrough of design thought have been seen seldom, thus it will obstruct the further rapid progress of our homemade instrument.
The innovation is a headspring that pushes the development of society and technique. We think that the innovation is not the change in formally; the innovative product is not the superficial change in shape (to instrument, not to the hull of machine) and the innovative purpose is to satisfy the request of realistic society and the technique development. If we can solve actual request and improve original abuse and shortage through innovation, it is just significative. We are engaged in the scientific research, production and technique service of gas chromatography over a long period and we make objective and overall investigation and analysis to the applied circumstance of production existing on the market, so we can find out the actual applied innovative point from the existed problem in actual application.
There are many requests to chromatographer in actual applied work of gas chromatography: (1) the reliability of the instrument is good and it don't take place the malfunction in long-term movement; (2) the examine and repair is want to be convenient when malfunction happens or service is requested and analytical personnel had better can learn it easily;(3) the control precision of column box temperature is want to be high and the temperature field is want to be even and consistent; (4) many samples can be analyzed fast on one instrument; (5) the instrument is agile and convenience to take; (6) the degree of general and standardized design is high, the instrument production is convenience and it can satisfy the characteristic request of customer in time.
The actual requests of the customer show that we should innovate and make ideal design to the instrument.
Innovation design specialty:
The design of the circular column box:
The temperature parameter and the temperature control precision are very important in gas chromatography technique. The choice of temperature parameter and temperature control precision, especially the temperature control precision of chromatographic column (column box), the consistency of column box valid space temperature field and the repetition of temperature programming all can affect the sensitivity, the stability, the separation of chromatographic peak and the precision of qualitative and quantitative analysis.
The column boxes of gas chromatography all over the world are traditional and square and they restrict the elevation of the temperature control precision and the consistency of temperature field. Perfect column box should be circular and GC9900 gas chromatography adopts the shape. Although the processing is more difficult, it can completely eliminate the four dead angles of square column box, guarantee the absolute consistency of column box valid space temperature field and enhance the temperature control precision of column and the repetition of temperature programming consumedly. It is valid to enhance the precision of qualitative and quantitative analysis.
The design of chromatographic analysis unit modularization:
Many units and departments, such as the analysis testing center in college, product quality intendance testing center of the technical director bureau, hygiene epidemic prevention station, environment monitor station, physics and chemistry examination room of public security system, food agrochemical giblets testing, testing stations or analysis center in all trades, scientific research place of large-scale enterprise and so on, all hope that various samples can be analyzed in one bought gas chromatography. But in actual application, chromatographic column, detector and injection system must be changed along with the change of analytic sample. And that, after changing the three hard cores it is difficult to adjust the instrument quickly and make it work normally fast. Especially, it is difficult to keep repetition after changing capillary column; it needs to aging after changing the ECD and it needs to clean and aging after replacing the injector (vaporizer). It will spend 2-3 days to adjust the instrument. These are prevalent matters.
The outstanding innovation and the patent design of GC9900 gas chromatography is that the three hard cores have been made into chromatographic analysis unit module, which resolves the above-mentioned problems successfully. In practice, it will only spend less than an hour to replace the FID capillary column system with ECD and adjust it to normal.
The whole instrument design of unit combination:
There are five units in the GC9900 gas chromatography: (1)the host box unit; (2)chromatography analysis unit (chromatographic column, detector and injector is integrative);(3)temperature control unit; (4)testing circuit unit and(5)gas way control unit.
Because of the full consideration of universal and standard principle in unit designing and manufacturing, different units can be easily combined which can satisfy various analytical requests of different performance, different function and different samples.
Thus, it is very convenient in producing and manufacturing, debugging and testing, maintenance, examine and repair, taking and conveying. Also, it is convenient to agents and workers in technique service places all over the world.
4. The high compositive circuit of microcomputer temperature control and the fast outspread structure design:
Similar to the column box heat unit, microcomputer temperature control is the basal unit in GC9900 gas chromatography. After completing the design of high compositive and credible microcomputer temperature control circuit, the fast outspread structure with the orbit and panel gemel has been skillfully designed at the same time. It will only spend a few seconds in opening it when checking and maintaining and it is convenient to check. The fifth generation design of high compositive and credible microcomputer temperature control circuit is in the course of continuous innovation and improvement whose reliability is rest assured for customers.
The design of examination circuit keystoke operation:
In traditional examination circuit, potentiometer is used to zero and wave band switch or the keyboard switch is used to come to gain choice and relax choice. These parts of an apparatus will be damaged or be bad in contact after a long period of usage and it will result in the instability of baseline and deviant work.
The bran-new keystoke operation is designed in examination circuit unit of GC9900 gas chromatography and the numerical manifestation of the signal is added in it. These make the panel is clear and beautiful, the operation is convenient and the instrument is credible. |
 |
|
|
|
