Interference of ascorbic and isoascorbic acids in the spectrophotometric determination of nitrite by the diazotization-coupling technique.

@article{Norwitz1987InterferenceOA,
  title={Interference of ascorbic and isoascorbic acids in the spectrophotometric determination of nitrite by the diazotization-coupling technique.},
  author={G. Norwitz and P. Keliher},
  journal={The Analyst},
  year={1987},
  volume={112 6},
  pages={
          903-7
        }
}
  • G. Norwitz, P. Keliher
  • Published 1987
  • Chemistry, Medicine
  • The Analyst
  • The problem of the interference of ascorbic and isoascorbic acids in the spectrophotometric determination of nitrite by the diazotisation-coupling technique is important because these substances are frequently added to cured meats containing nitrite. The chemistry of the reaction of ascorbic and isoascorbic acids with nitrite is discussed. The effect of pH on the reaction at room temperature and on digestion at 80 °C was investigated. Two composite diazotisation-coupling reagents… CONTINUE READING
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