宋叶叶^1,2,张连峰²,童张法¹,黄煜^1,2

• 1:广西大学 化学化工学院，广西 南宁 530004
• 2:深圳清华大学研究院 生态与环境保护实验室，广东 深圳 518057

摘要(Abstract)：

为提高KI/KIO₃化学曝光剂测量数据的准确性，应用改进的孔式平行光设备，研究了温度、照射时间、可见光、溶液制备过程、搅拌等因素的影响。根据曝光剂的化学反应，从理论上分析了影响的内在原因，且对入射角的影响进行了几何光学分析。结果显示，全程伴随空白样品方法，可有效消除溶液自身不稳定性带来的误差；配制溶液时先溶解四硼酸钠，可提高溶液自身稳定性；溶液的254 nm紫外线的透光率仅为0.56%（5 mm），需要通过搅拌使离子充分地扩散；溶液的三碘阴离子I₃^-存在浓度饱和阈值（0.001 672 mol·L^-1），表明测量时需根据溶液体积选择适当的剂量。上述方法可去除所有因素导致的误差。

关键词(KeyWords)： 紫外线;化学曝光剂;碘化钾/碘酸钾;辐射照度计;稳定性;校准

Abstract:

Keywords:

基金项目(Foundation): 深圳市科技计划项目（JCYJ20180306170551939）。

作者(Author): 宋叶叶^1,2,张连峰²,童张法¹,黄煜^1,2

DOI: 10.3969/j.issn.1003-9015.2020.00.007

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