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采用一阶导数分光光度法测定吲哚美辛滴眼液的含量，以336.4nm处的一阶导数谷－基振幅值为测定依据，平均回收率100．7％，RSD为0．54％。
The first order derivative spectrophotometry was used to determine the amount of indomethacin eye drops. Based on the first derivative valley-base amplitude at 336.4 nm, the average recovery was 100.7% and the RSD was 0.54%.