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. 2020 Aug 7;8:639. doi: 10.3389/fchem.2020.00639

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Copyright © 2020 Wang, Wang, Huang, Chen and Wu.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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CL kinetic study of the LaF₃:Ce NPs-NaNO₂-H₂O₂ system. (A) CL kinetic curves of the LaF₃:Ce NPs-NaNO₂-H₂O₂ system with different reagent mixing orders: 1. injecting LaF₃:Ce NPs into the mixture of NaNO₂ and acidified H₂O₂; 2. injecting NaNO₂ into the mixture of LaF₃:Ce NPs and acidified H₂O₂; 3. injecting acidified H₂O₂ into the mixture of LaF₃:Ce NPs and NaNO₂. CL signals of three repeated experiments were given. (B) CL kinetic curves of the NaNO₂-H₂O₂ system and the LaF₃:Ce NPs-H₂O₂ system. Conditions: 3.00 M H₂O₂ in 0.04 M H₂SO₄, 50 μl of LaF₃:Ce NPs and 10 μM NaNO₂ solution. Voltage of the PMT was set at 1.2 kV.