Gao, Daming, Hong Sun, Jingyu Si, Hong Chen, Dechun Zhu, and Jianjun Shi. 2012. “Ultrasensitive Detection of 2,4-D at Surface of a Hybrid Silica Nanoparticle Based on Photoinduced-Electron Transfer Enhanced Fluorescence”. Asian Journal of Chemistry 24 (9):4031-34. https://asianpubs.org/index.php/ajchem/article/view/9535.