【 Method 】 The molecular weight distribution rule and intrinsic viscosity on rice starches were measured by gel permeation chromatography and Ostwald viscometer, respectively. Numerical model of their relationship was fitted by non-linear regression. 方法以6种大米淀粉为原料,采用凝胶色谱法和乌式粘度计测定大米淀粉的分子量分布和特征粘度,用非线性回归拟合分子量分布与特征粘度关系的数学模型。