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采用622nm和550nm双波长比色法测定高粱中支链淀粉 ,运用微波溶解溶胀淀粉 ,测定结果 :标准曲线线性相关系数R趋于1,相对误差仅为0.25 %。测定结果的重复性、稳定性都较单波长好
The determination of amylopectin in sorghum by dual wavelength colorimetry at 622nm and 550nm was carried out. The results showed that the linear correlation coefficient R of the standard curve was about 1 and the relative error was only 0.25%. The repeatability and stability of the measurement results are better than single wavelength