Photochemical Spectrofluorometric Determination of 2,6-Dimethylphenol Based on Monitoring Its Photo-Degradation Intermediate with TiO2 as a Catalyst.
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- MA Wanhong
- Department of Chemistry, Wuhan University
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- LIU Zhihong
- Department of Chemistry, Wuhan University
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- CAI Ruxiu
- Department of Chemistry, Wuhan University
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説明
A novel spectrofluorometric method for the determination of 2,6-dimethylphenol has been developed. It is based on detecting a fluorophore intermediate produced in the course of 2,6-dimethylphenol photo-degradation with TiO2 as a catalyst. A quartz glass reactor containing the required amount of analyte, buffer and TiO2 is irradiated with UV light (<380 nm). The formed intermediate is detectable with fluorescence and UV absorption. What is more, the fluorescence intensity of the intermediate is dramatically enhanced when extracted into the CHCl3 phase. A linear calibration graph was obtained over a 2,6-dimethylphenol concentration ranging from 0.002 µg ml-1 to 0.1 µg ml-1 with a detection limit of 0.0008 µg ml-1 . Other phenolic compounds as well as those common inorganic ions do not interfere. The kinetics of the photo-degradation reaction, which followed a successive first-order reaction kinetic model, were studied using an error-compensated algorithm.
収録刊行物
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- Analytical Sciences
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Analytical Sciences 15 (10), 963-967, 1999
社団法人 日本分析化学会
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詳細情報 詳細情報について
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- CRID
- 1390001204253995136
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- NII論文ID
- 10004707807
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- NII書誌ID
- AA10500785
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- COI
- 1:CAS:528:DyaK1MXms1agtrs%3D
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- ISSN
- 13482246
- 09106340
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- NDL書誌ID
- 4872822
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可