牙膏中6-甲基香豆素、二氢香豆素、7-甲基香豆素、7-甲氧基香豆素、7-乙氧基-4-甲基香豆素的测定 高效液相色谱法

Determination of 6-methylcoumarin, dihydrocoumarin, 7-methylcoumarin, 7-methoxycoumarin, 7-ethoxy-4-methylcoumarin in toothpastes—High performance liquid chromatography