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东北大学理学院 分析科学研究中心
收稿:2008-12-23,
修回:1900-1-2,
网络首发:2009-08-30,
纸质出版:2009-08-30
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宋 月, 高春英, 乔 琳, 等. 顺序注射化学发光分析法测定空气中的甲醛[J]. 发光学报, 2009,30(4):467-472.
SONG Yue, GAO Chun-ying, QIAO Lin, et al. A Sequential Injection Method Coupled with Chemiluminescence Detection for the Determination of Formaldehyde in Air[J]. Chinese Journal of Luminescence, 2009, 30(4): 467-472.
基于碱性条件下甲醛对没食子酸-过氧化氢发光反应的增敏作用
建立了顺序注射与化学发光检测联用测定空气中甲醛的新方法。在选定的实验条件下
甲醛浓度与发光强度在1.0×10
-7
~2.0×10
-3
mol/L范围内呈线性关系
相关系数0.999 3
方法的检出限(3
σ
)为5.0×10
-8
mol/L。对1.0×10
-6
mol/L的甲醛进行11次连续测定的相对标准偏差为2.1%
每小时可实现连续测定140次以上。方法的回收率为92.0%~108.0%
对环境标准样品中甲醛的测定结果与推荐值一致。
paper
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