التفاصيل البيبلوغرافية
| العنوان: |
基于二氧化铈/羟基氧化铁纳米酶的比色分析法 快速检测泡椒凤爪中过氧化氢. (Chinese) |
| Alternate Title: |
Colorimetric Method Based on Cerium Dioxide/Iron Oxyhydroxide Nanozyme for Rapid Detection of Hydrogen Peroxide in Chicken Feet with Pickled Pepper. (English) |
| المؤلفون: |
岳晓月, 闫曙亮, 符龙, 赵电波 |
| المصدر: |
Shipin Kexue/ Food Science; 2025, Vol. 46 Issue 1, p166-175, 10p |
| مصطلحات موضوعية: |
RADICAL anions, STANDARD deviations, DETECTION limit, CERIUM, SUPEROXIDES |
| Abstract (English): |
In this study, an innovative cerium dioxide-modified iron oxyhydroxide (CeO2/FeOOH) nanozyme with peroxidase-like activity was synthesized by one-step hydrothermal method. The CeO2/FeOOH nanozyme could catalyze the decomposition of hydrogen peroxide (H2O2) to produce hydroxyl and superoxide anion radicals, which in turn could oxidize 3,3’,5,5’-tetramethylbenzidine (TMB) to produce a blue substance (oxidized TMB, ox-TMB). Based on this, a CeO2/FeOOH-based colorimetric sensor was constructed for the detection of H2O2. The results showed that the colorimetric sensor exhibited a highly sensitive response to H2O2 with a detection limit of 3.92 μmol/L and a linear range of 10 to 1 000 μmol/L. The recoveries for spiked samples ranged from 90.59% to 93.42% with relative standard deviations (RSDs) not more than 4.25%. The developed method had the advantages of high sensitivity, high accuracy, speediness and simplicity. [ABSTRACT FROM AUTHOR] |
| Abstract (Chinese): |
采用水热法合成二氧化铈 (CeO2) 修饰的羟基氧化铁 (FeOOH), 得到纳米材料 CeO2/FeOOH。CeO2/ FeOOH具有类过氧化物酶活性, 可以催化过氧化氢 (H2O2)分解产生羟自由基 (OH) 和超氧阴离子自由基 (O2 －·), 将3,3’,5,5’-四甲基联苯胺 (3,3’,5,5’-tetramethylbenzidine, TMB)氧化为蓝色的氧化TMB (oxidized TMB, ox-TMB)。基于此, 构建基于CeO2/FeOOH纳米酶的H2O2比色传感器。结果表明：该比色传感器对H2O2显 示出高灵敏度响应, 检测限为3.92 μmol/L, 检测范围为10～1 000 μmol/L。此外, 该传感器可用于泡椒凤爪中 H2O2的快速检测, 其中, H2O2加标回收率为90.59%～93.42%, 相对标准偏差≤4.25%, 具有灵敏、准确、快速 和简便等优势。 [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |