Quantitative detection of hydroxyl radicals in Fenton system by UV-vis spectrophotometry
Quantitative detection of hydroxyl radicals in Fenton system by UV-vis spectrophotometry
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紫外-可见分光光度法定量检测Fenton体系中的羟基自由基
DOI：
10.1039/c5ay00514k
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发表时间：
2015-06
影响因子：
3.1
通讯作者：
Shaohua Wu
中科院分区：
文献类型：
--
作者：
Haiqian Zhao;Jihui Gao;Wei Zhou;Zhonghua Wang;Shaohua Wu
对以坚牢蓝BB盐（FBBs）为显色剂的紫外-可见分光光度法测定羟自由基存在显著误差的原因进行了分析，并提出了改进方法。已证明在重氮砜浸提工艺中同时浸提FBB对试验结果有明显影响。在改进的方法中，采用FeSO 4限制甲苯/丁醇萃取剂对FBBs的萃取，大大降低了FBBs对重氮砜检测的影响。FBBs的用量和提取时间对提取效果有重要影响。结果表明，改进方法中适宜的FBBs/MSIA比为50，适宜的提取时间为300 s。测定了芬顿体系定向分解过程中stecOH的浓度。测试误差约为7%。该方法对于定量检测stecOH的生成，更好地理解芬顿反应机理，促进stecOH的生成具有重要意义。
The reason for the prominent error in the hydroxyl radical detection method by UV-vis spectrophotometry with fast blue BB salt (FBBs) as the chromogenic agent was detected, and a modified method was proposed. The simultaneous extraction of FBBs in the diazosulfone extraction process was proven to have a distinct influence on the test results. In the modified method, FeSO4 was adopted to limit the extraction of FBBs by a toluene/butanol extraction agent, which sharply decreased the influence of FBBs on diazosulfone detection. The FBBs amount and extraction time played an important role in its extraction. The appropriate FBBs/MSIA ratio was 50, and the reasonable extraction time was 300 s for the modified method. ˙OH concentration in the directional decomposition of the Fenton system was detected. The test error was about 7%. This method is quite significant to test ˙OH quantificationally to better understand Fenton reaction mechanisms and promote the generation of ˙OH.
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影响因子：
3.1
作者：
Wei-Chung Chen;Jen-Lin Chang;J. Zen
通讯作者：
Wei-Chung Chen;Jen-Lin Chang;J. Zen
DOI：
10.1039/c4ay01534g
发表时间：
2014-10-21
期刊：
Analytical methods : advancing methods and applications
影响因子：
--
作者：
Pluangklang T;Wydallis JB;Cate DM;Nacapricha D;Henry CS
通讯作者：
Henry CS
影响因子：
3.1
作者：
J. Si;Lu Lu-Lu;Z. Gao;Yu Zhang;H. Luo;N. Li
通讯作者：
J. Si;Lu Lu-Lu;Z. Gao;Yu Zhang;H. Luo;N. Li
影响因子：
11.4
作者：
Chen, Liwei;Ma, Jun;Xie, Pengchao
通讯作者：
Xie, Pengchao
影响因子：
6.1
作者：
Chao Tai;X. Gu;H. Zou;Qihua Guo
通讯作者：
Chao Tai;X. Gu;H. Zou;Qihua Guo