![]() ![]() Related standard deviation of the accuracy When the background is 1A, the background ability should be deducted not less than 50 times, self absorption background deduction method Flexible storage, editing and printing methods give the user largest support.Basic default parameter settings enable even the beginners can do the normal operation.Various analytical correction methods provide the users more choices.Convenient conversion between different menus makes the operation more easily.The rich menu brings great convenience to the use of customer.A workstation that is supported WINDOWS7.Thus it keeps the operation people and equipment from harm and damage. And it will automatically turn off the gas, prohibit tempering. The whole operation system has a high security as the fire safety system can alarm whenever the electricity is cut off, abnormal flame occurs, a lack of pressure happens or the burner does not match well.Efficient atomization system enables a higher sensitivity.EPC can control the flow of Acetylene (C 2H 2) more accurately and it is a kind of system which also can operate easily.Safe, Reliable and Convenient Flame System Can timely alarm when the gas and water is stopped and insufficient gas and water, can avoid the equipment damage and measuring error.Three grades adjustable gas flow can accustom to more application needs.The maximum procedure heating capacity setting of 20 levels can make a more convenient and easier test of different samples.Use the ordinary power source of 220V without need of dynamic power of 380V. ![]() The fast heating capacity can improve the flexibility of the elements further.The combination of the 3ms/time fast sampling technique can make more accurate and reliable testing data The hollow cathode lamp is an excellent, bright line source for most of the ele- ments determinable by atomic absorption. The bringing in of PID technology can effectively overcome the influence on the temperature rising process caused by the voltage fluctuation and the resistance change to make more accurate controlling process.Setting of the graphite furnace testing methodĪdvanced Graphite Furnace Temperature Controlling Technology.Setting of the background deduction method.Determination of wavelength scanning and peak searching.Up-down-front-rear adjustment of the lifter.With the help of the software, the following can be easily achieved Result printing: parameter printing, data result printing and diagram printing.Measuring method: flame absorption method and emission method.Data processing: super strong database, possesses more than 500 data self-storage and cut-off storage function, can store the analyzed result with the form of EXCEL and the testing method and the result can be randomly called.Deuterium lamp and self-absorption background regulation.Complete safety chains protection equipment: the function of warning and automatic safety protection towards the wrong burner, leakage of the gas, under voltage of air and the abnormal flame.Fully automated wavelength scanning and peak searching.Position adjusting: the best height of the flame burner and can automatically set the front and rear positions.explain how it works by means of chemical equations, words and diagrams (10) b) Explain sample introduction into ICP. Hollow Cathode Lamps working totally depends on the hollow cathode effect. Eight light stands can be changed automatically and preheat the eight lights meantime as well as optimize the working condition of the hollow cathode lamp. Answer (a) :Hollow Cathode Lamps are ideal source of spectral lines that are used for testing in laboratories.Integrated floated optical platform design can obviously improve the optical system shock resistance and keep stable though use the optical signal for a long term.The atomic absorption spectrophotometer is completely controlled and operated by PC, with unique optical and mechanical design, safe and convenient flame system, advanced graphite furnace temperature control technology and various convenient functions provided by the workstation. ![]()
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