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在ＬｉｃｈｒｏｓｏｒｂＲＰ－１８色谱往上采用流动相甲醇－水－三乙胺（５０：５０：０．１，ｐＨ３．０）、检测波长２９５ｎｍ，在２０～１００μｇ／ｍｌ范围内，峰面积（Ａ）与对照品浓度（Ｃ）呈良好的线性关系，日内、日间ＲＳＤ分别为０．９７％和１．２１％，平均回收率为９８．９８±０．９７％，结果满意。
The mobile phase of methanol-water-triethylamine (50:50: 0.1, pH 3.0) was used in the Lichrosorb RP-18 chromatography. The detection wavelength was 295 nm. The peak area (A) was in the range of 20-100 μg / The concentration of reference substance (C) showed a good linear relationship. The intra-day and inter-day RSD were 0.97% and 1.21%, respectively. The average recovery was 98.98 ± 0.97%. The results were satisfactory.