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Modified spectrophotometry for micromolar H2O2 determination in iron-containing solutions with leuco crystal violet under both aerobic and anaerobic conditions

文献类型：期刊论文

作者He, Zhaolu2,3; Xian, Haiyang2,3; Xu, Liang2,3; Zhu, Jianxi2,3; Lin, Mang1,4; Liang, Xiaoliang2,3; He, Hongping2,3
刊名ANALYTICAL METHODS
出版日期2024-10-16
页码8
ISSN号1759-9660
DOI10.1039/d4ay01469c
英文摘要Accurately quantifying hydrogen peroxide (H2O2) is essential for elucidating its role across diverse environments. Spectrophotometry is widely employed in laboratories for this purpose due to its convenience, cost-effectiveness, and low detection limits for micromolar H2O2 concentrations. However, accurate measurement of H2O2 in iron-containing solutions presents challenges due to the interference of iron ions. In this study, we propose a modified spectrophotometric method for H2O2 determination in iron-containing solutions by adding two types of iron ion chelators and selecting leuco crystal violet (LCV) as a chromogenic reagent due to its stability. By sequentially adding 1,10-phenanthroline and EDTA, and using a phosphate buffer at pH 4.2 to provide the optimal chromogenic pH condition, this modified method effectively mitigates the interference of iron ions in the LCV chromogenic reaction. The applicability of this method under aerobic and anaerobic conditions was confirmed by comparing the experimental results with theoretical simulations. Under optimal chromogenic conditions, this method achieves a detection limit of 300 nM. This improved method allows better detection of H2O2 in iron-containing systems and investigation of its significance in various environmental processes.
WOS研究方向Chemistry ; Food Science & Technology ; Spectroscopy
语种英语
WOS记录号WOS:001340864200001
源URL[http://ir.gig.ac.cn/handle/344008/81264]  
专题中国科学院矿物学与成矿学重点实验室
通讯作者Xian, Haiyang
作者单位1.Chinese Acad Sci, Guangzhou Inst Geochem, CAS Ctr Excellence Deep Earth Sci, Guangzhou, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Geochem, CAS Key Lab Mineral & Metallogeny, Guangdong Prov Key Lab Mineral Phys & Mat, Guangzhou 510640, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou, Peoples R China
推荐引用方式
GB/T 7714		 He, Zhaolu,Xian, Haiyang,Xu, Liang,et al. Modified spectrophotometry for micromolar H2O2 determination in iron-containing solutions with leuco crystal violet under both aerobic and anaerobic conditions[J]. ANALYTICAL METHODS,2024:8.
APA He, Zhaolu.,Xian, Haiyang.,Xu, Liang.,Zhu, Jianxi.,Lin, Mang.,...&He, Hongping.(2024).Modified spectrophotometry for micromolar H2O2 determination in iron-containing solutions with leuco crystal violet under both aerobic and anaerobic conditions.ANALYTICAL METHODS,8.
MLA He, Zhaolu,et al."Modified spectrophotometry for micromolar H2O2 determination in iron-containing solutions with leuco crystal violet under both aerobic and anaerobic conditions".ANALYTICAL METHODS (2024):8.

入库方式： OAI收割

来源：广州地球化学研究所

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