Detection of Cola beverage by electronic nose.
可乐饮料的电子鼻检测研究

There is little study on the detection of liquid beverage by electronic nose,and the effect is not satisfied.Three means of pretreatment: detected directly by electronic nose,processed by the enrichment and desorption unit(EDU) or processed by Na_2CO_3 as desiccant were adopted to detect Coca cola,pepsi cola and future cola by electronic nose.To review the effect of three pretreatment methods,principal component analysis and linear discriminant analysis were employed,and the result of analysis indicated that the experiment employing Na_2CO_3 as desiccant to pretreat the samples can improve the effect of detection significantly.