Detection of 1,3-dihydroxyacetone by tris(2,2′-bipyridine)ruthenium(II) electrochemiluminescence
1,3-Dihydroxyacetone, a common cosmetic material and food additive, has been successfully explored as an efficient electrochemiluminescence coreactant of Ru(bpy)32+ for the first time. It is about 25 times more effective than the well-known coreactant sodium oxalate. The high electrochemiluminescence efficiency allows sensitive detection of 1,3-dihydroxyacetone without any derivatization. The electrochemiluminescence method shows two linear electrochemiluminescence responses over the range of 5.0–500 μM and 500 μM–6.0 mM with a detection limit of 1.79 μM. The proposed method is at least two orders of magnitude more sensitive than other reported methods.
KeywordsCoreactant Electrochemiluminescence 1,3-Dihydroxyacetone Tris(2,2′-bipyridine)ruthenium(II)
This work was kindly supported by the Jilin Provincial Science Research Foundation of China [Grant Number 20170520146JH], the Ministry of Science and technology of the People’s Republic of China [Grant Number 2016YFA0201300], the National Natural Science Foundation of China [Grant Numbers 21505128, 21475123], and the Chinese Academy of Sciences (CAS) President’s International Fellowship Initiative (PIFI).
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Conflict of interest
The authors declare that they have no conflict of interest.
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