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The summarize of major characterize and developing actuality about instrument analysis methods and analysis instruments

Sun ying-hong Qi yi-ming Wang chen-chen Yang yu-xia(Milk Determination and Test Center of Agricultural Department,Harbin 150086,China)  
There a lot of analysis instruments and analysis methods today.Which are analysis instruments of spectrum,electrochemistry, chromatography,mass spectrum,magnetism,thermal,nucleus,and so on.Each type of analysis instrument has already built its analysis method. in the 20 century 1940s~1960s,there were many new analysis instruments putting in market in average of decade,which the detection limit of analysis methods reduced nearly ten thousand times than before;In the 20 century 1960s~1980s,the detection limit had reduced 100 times than before in average of decade.The development of analysis instruments and analysis methods is very fast.
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