王保莉 曲东. 双波长导数光谱法同时测定溴和碘[J]. 华南农业大学学报, 1994, (1): 150-154.
    引用本文: 王保莉 曲东. 双波长导数光谱法同时测定溴和碘[J]. 华南农业大学学报, 1994, (1): 150-154.
    Wang Baoli, Qu Dong. SIMULTANEOUS DETERMINATION OF BROMIDE AND IODIDE WITH SECOND-DERIVATE SPECTROPHOTOMETRY[J]. Journal of South China Agricultural University, 1994, (1): 150-154.
    Citation: Wang Baoli, Qu Dong. SIMULTANEOUS DETERMINATION OF BROMIDE AND IODIDE WITH SECOND-DERIVATE SPECTROPHOTOMETRY[J]. Journal of South China Agricultural University, 1994, (1): 150-154.

    双波长导数光谱法同时测定溴和碘

    SIMULTANEOUS DETERMINATION OF BROMIDE AND IODIDE WITH SECOND-DERIVATE SPECTROPHOTOMETRY

    • 摘要: 依据溴和碘的二阶导数光谱,选择217.0nm的I^-等吸收点波长和242.4nm的I^-吸收峰波长,用于Br^-和I^-的同时测定。溴和磺标准混合液测定的误差为:Br^--0.483%~+0.714%;I^--0.405%~+0.983%。对21种离子做了干扰试验。并测定了食盐样品中I^-和Br^-的含量,样品中的回收率分别为:Br^-97.2%~101%;I^-99.6%~102%。

       

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