The second-class derivative spectrum method was u sed to determine the amygdalin contents of Prunus persica(L .) Batsch. from three different areas (Fujian, Anhui, Xinjiang).

• 采用二阶导数光谱法直接测定三种不同产地(福建、安徽、新疆)桃仁中苦杏仁甙的含量。