Simultaneous determination of Sudan II and Sudan III via synchronous fluorescence spectrometry
- 化学化工－已发表论文 
A new method of constant-wavelength synchronous fluorescence spectrometry for simultaneous determination of Sudan II and Sudan III was developed with using their fluorescence phenomenon. Only one single scan is needed for effective identification and quantitative determination of the two compounds simultaneously when Delta lambda = 60 nm is chosen. The linear ranges for Sudan II and Sudan III were 0-3.3 and 0-2.8 mu g/mL, respectively. The detection limits for Sudan It and Sudan III were 14 and 11 ng/mL, respectively. By using this method, Sudan II and III in sausage samples were determined directly with the recoveries of 83.8%-109.5%.