New method for quick determination of sulfite in food

@inproceedings{Jianrong2012NewMF,
  title={New method for quick determination of sulfite in food},
  author={Li Jian-rong},
  year={2012}
}
A rapid spectrophotometry for determination of SO2-3 was established.At 20℃ and in a solution of pH 6 ~ 8 phosphate buffer sulfite caused a color-fading of the brilliant green dye.The brilliant green had an absorption maxim at 630nm.The reaction reached balance after 10min.The determination of sulfite was carried out by measuring the intensity of color-fading.The liner range for determination of sulfite was found to be 0 ~ 8mg/L with a correlation coefficient of 0.9982 and the regression… CONTINUE READING