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采用薄层扫描法,以含4.68％磷酸二氢钠和0.5％羧甲基纤维素钠的硅胶GF254为吸附剂,以乙醚-石油醚-甲酸(70:30:1)为展开剂,同板测定龙胆风湿胶囊中吲哚美辛和吡罗昔康的含量。方法简便可行。
Using thin-layer scanning method, silica gel GF254 containing 4.68% sodium dihydrogen phosphate and 0.5% sodium carboxymethyl cellulose as adsorbent and ether-petroleum-formic acid (70:30:1) as developing solvent were used. The content of indomethacin and piroxicam in Longdan Fengshi Capsule was measured. The method is simple and feasible.