Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Ting Wu and Yueqing Guan and Jiannong Ye,Determination of flavonoids and ascorbic acid in grapefruit peel and juice by capillary electrophoresis with electrochemical detection,Food Chemistry,0308-8146,Elsevier BV,2007-01,100,4,1573-1579,https://cir.nii.ac.jp/crid/1363388843241503232,https://doi.org/10.1016/j.foodchem.2005.12.042