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采用ＲＰ－ＨＰＬＣ 测定天乐口服液中橙皮苷的含量，以 μ－Ｂｏｎｄａｐａｋ Ｃ１８柱（１０ μｍ ，４．６ ｍ ｍ ×２５０ ｍ ｍ ）为固定相，２％ 甲醇的乙腈溶液－０．１％ 磷酸和０．１％ 三乙胺的水溶液（２０∶８０）为流动相进行测定，紫外检测波长２８４ ｎｍ ，平均回收率为９９．９５％ ，ＲＳＤ＝ ０．９３％ （ｎ＝ ６）。
Determination of Hesperidin in Tianle Oral Liquid by RP-HPLC with μ-Bondapak C18 Column (10 μm, 4.6 mm × 250 μm) as the stationary phase, 2% Methanol in Acetonitrile-0.1 % Phosphoric acid and 0.1% triethylamine in aqueous solution (20:80) were measured by mobile phase. UV detection wavelength was 284 nm and the average recovery was 99.95% with RSD = 0.93% (n = 6).