研究了微波消解—光度法测定鳖甲中磷的分析方法 ,并对消解试剂进行了优化实验。磷钼蓝的最大吸收波长为 80 0nm ,表观摩尔吸光系数为 2 .32× 10 4 L·mol- 1 ·cm- 1 ,磷在 0～ 1μg·ml- 1 内符合比尔定律。该法的测定结果与湿式消化法、干式消化法相当 ,具有快速、灵敏度、准确度、精密度高的优点。 A microwave digestion-photometric method for the determination of phosphorus in turtle beetle was studied. The digestion reagent was optimized. The maximum absorption wavelength of phosphomolybdum blue is 80 nm and the apparent molar absorptivity is 2.32×10 4 L·mol-1 ·cm-1. Phosphorus complies with Beer’s law within 0-1 μg·ml-1. The results of this method are comparable to the wet digestion method and dry digestion method, and have the advantages of rapidity, sensitivity, accuracy, and high precision.