[參考自 Karyn Usher, Metropolitan State University, Saint Paul, Minnesota.。關於學生實驗,請參考 H. F. Rossi, III, J. Rizzo, D. C. Zimmerman, and K. M. Usher, “Extraction and Quantitation of FD&C Red Dye #40 from Beverages Containing Cranberry Juice,” J. Chem. Ed. 2012, 89, 1551。前三位作者是大學部研究人員。]