Ishiwata H, Nagata M, Sekiguchi Y, Kamakura K, Sugita T, Yamada T
Kokuritsu Iyakuhin Shokuhin Eisei Kenkyusho Hokoku. 1998(116):122-5.
The Ministry of Health and Welfare has been proposed an analytical method for food colors by HPLC. Conditions in the method and modified conditions of the proposed method were applied for permitted and nonpermitted food colors, and relative retention times were obtained. The relative retention times would be a clue of the confirmation of these nonpermitted colors by other method.
卫生福利部已提出一种用高效液相色谱法分析食用色素的方法。该方法的条件以及所提方法的修改条件被应用于许可和非许可食用色素，并获得了相对保留时间。相对保留时间将成为用其他方法确认这些非许可色素的线索。
