Rapid determination for ethyl alcohol in xanthan gum by enzyme electrode

The ethyl alcohol in xanthan gum was determined by enzyme electrode, the instrument conditions and the pre-treatment conditions were further optimized. The results showed that this method had excellent linear relationship with the correlation coefficient of 0.9994 and the detection limit of the method was 0.02%. The detection rate of instrument was 20 s. The recovery rates were 83.3%~93.3% and the relative standard deviation were all below 3%. This developed method was easy, sensitive and reliable, which could be used to analyze ethyl alcohol in xanthan gum.