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  • Title: [Simultaneous determination of scopolamine hydrobromide, atropine sulfate, ephedrine hydrochloride and pseudoephedrine hydrochloride in Zhichuanling oral liquid with HPLC].
    Author: Zhang YL, Li YP.
    Journal: Zhongguo Zhong Yao Za Zhi; 2013 Oct; 38(19):3291-4. PubMed ID: 24422394.
    Abstract:
    OBJECTIVE: To establish an HPLC method for determining the contents of scopolamine hydrobromide, atropine sulfate, ephedrine hydrochloride and pseudoephedrine hydrochloride in Zhichuanling oral liquid. METHOD: Agela Durashell RP-C18 (4. 6 mm x250 mm, 5 microm) was adopted, with acetonitrile-sodium phosphate buffer solution (0. 07 mol L-1 sodium phosphate solution with 17.5 mmol L-1 sodium dodecylsulfate adjusted to pH 6.0 with phosphoric acid solution) (30:70) as the mobile phase. The flow rate was 0. 9 mL min -1, the detection wavelength was 207 nm, and the column temperature was 25 degree C. RESULT: Scopolamine hydrobromide, atropine sulfate, ephedrine hlvdrochloride and pseudoephedrine hydrochloride showed good linear relations with peak areas within the concentration range of 0. 021 21-1. 060 5 pg (r =0. 999 3) , 0. 011 14-0. 557 microg (r = 0. 999 6) , 0. 200 56-10. 028 microg (r =0. 999 7) and 0.070 33-3. 516 5 gg (r =0. 999 6), respectively, with the average recoveries of 101.9% , 99. 80%, 100. 3%, 100. 2% (n=6). CONCLUSION: The method was so quick, simple, highly reproducible and specific that it could be used as one of quality control methods of Zhichuanling oral liquid.
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