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| Adopting Sodium Salicylic Acid-hypochlorous acid Spectrophotography to Determine Crude Ammonia |
| Sang Hongqing |
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Abstract A new method for t he determination of the crude ammonia in meat is presented in this pa-per.The method is based on the color reaction of ammonis -salicylic acid-sodium hypoch lirite with the presence of Na 2 Fe (CN) 5 NO in basic medium.It shows the apparent molar absorp tivity is1.38×10 4 L mol -1 .cm -1 with the wavelength at660nm.Beer’s law is obeyed for the nitrogen of am monia in the range of0～5ìg /10ml.The correlation coefficient is0.99 68.The recoviries are between96%～103.3%.
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2002, Vol. 16 
