English
李忠军, 崔宏伟, 熊良武. 溴酸钾-藏红T光度法测定痕量亚硝酸根[J]. 信阳师范学院学报(自然科学版), 2002, 15(3): 297-298.
引用本文: 李忠军, 崔宏伟, 熊良武. 溴酸钾-藏红T光度法测定痕量亚硝酸根[J]. 信阳师范学院学报(自然科学版), 2002, 15(3): 297-298.
shu
LI Zhong jun, CUI Hong wei, XIONG Liang wu. Spectrophotometric determination of trace nitrite with potassium bromate and safranine T[J]. Journal of Xinyang Normal University (Natural Science Edition), 2002, 15(3): 297-298.
Citation: LI Zhong jun, CUI Hong wei, XIONG Liang wu. Spectrophotometric determination of trace nitrite with potassium bromate and safranine T[J]. Journal of Xinyang Normal University (Natural Science Edition), 2002, 15(3): 297-298.
shu

溴酸钾-藏红T光度法测定痕量亚硝酸根

Spectrophotometric determination of trace nitrite with potassium bromate and safranine T

    摘要
  • 摘要: 研究了在磷酸介质中 ,由于亚硝酸根催化作用 ,溴酸钾能够氧化藏红 T使之褪色 ,建立了测定痕量亚硝酸根的新方法 ,并探讨了这一催化反应的动力学条件 .其线性范围为 0～ 5.6 μg/ L,检出限为 2 .0× 1 0 - 8g/ L.用于纯净水中的亚硝酸根测定 ,结果满意

     

    Abstract: A new spectrophotometric method for the determination of trace nitrite was studied .The method is based on the potassium bromate oxidizing safranine T because of nitrite catalytic agent in phosphoric acid medium.The linear range for the determination is 0～5.6 μg/L NO - 2.The limit of detection is 2.0×10 -8 g/L.The method has been applied to the determination of trace nitrite in purified water.

     

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