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| | HPLC method is used for the determination of matrine in Compound radix euphorbiae fischerianae injection with the column of Shim pack CLC ODS, the mobile phase of acetonitrile 0.02 mol·L -1 sodium phosphate monobasic (60∶40), detection wavelength of 210 nm. Results: The linear range is 0.15~0.90 mg·ml -1 ,γ=0.999 3, the average recovery is 99.13% and RSD=0.99%. The method is simple, rapid and accurate, it can be a quality control standard of Compound Radix Euphorbiae fischeria... | | 采用 HPL C法 ,以 Shim-pack CL C-ODS为色谱柱 ,乙腈 -0 .0 2 mol· L- 1 磷酸二氢钠 (60∶ 40 )为流动相 ,检测波长 2 1 0 nm,测定复方狼毒注射液中苦参碱的含量。结果 :苦参碱在 0 .1 5~ 0 .90 mg· ml- 1范围内呈线性关系 ,γ=0 .9993 ,平均回收率为 99.1 3 % ,RSD=0 .99%。方法简便快速 ,结果准确可靠 ,可作为该制剂的质量控制方法。 | | 文摘来源 | | OBJECTIVE To establish a capillary electrophoresis method for determing the concentrations of oxysophocarpine and oxymatrine in rabbit plasma.METHODS The internal standard was cimetidine.The protein in plasma was precipitated with methanol and centrifuged at high speed.The supernatant was directly injected and assayed by CE method.The running buffer was 0.2 mol·L -1 Tris 40 mmol·L -1 sodium phosphate monobasic 20% isopropanol, adjusted pH to 5.5 with phosphoric acid. The ... | | 目的 建立了兔血浆中苦参类生物碱的毛细管电泳分离测定法。方法 在血浆中加入内标西咪替丁后 ,用甲醇进行蛋白沉淀 ,高速离心后 ,直接进样测定。运行缓冲液为 0 .2mol·L-1Tris 4 0mmol·L-1磷酸二氢钠溶液 2 0 %异丙醇 ,用磷酸调pH至 5 .5 ,检测波长为 2 0 5nm。 结果 本测定方法的提取回率为 94 .6 4 %~ 98.78% ,对血浆中氧化槐果碱的最低检测浓度为 0 .2 μg·L-1,氧化苦参碱的最低检测浓度为 1.0 μg·L-1,氧化槐果碱和氧化苦参碱的线性范围分别为 0 .4 1~ 72 .5 μg·L-1和 1.95~ 2 6 8.5 μg·L-1,相关系数分别为 0 .9992和 0 .9994。兔静注 10 0mg·kg-1苦参总碱注射液后 ,用本法测定了兔血浆中氧化槐果碱和氧化苦参碱的浓度经时变化过程 ,并对其药动学参数进行估算。结论 用本法同时测定兔血浆中的氧化槐果碱和氧化苦参碱 ,结果满意 ,氧化槐果碱和氧化苦参碱在体内符合开放式二室模型 | | 文摘来源 | | OBJECTIVE To establish a HPLC method for determination of baicalin in Dahuang Zhechong Wan.METHOD LUNA C 18(2) column was used. The acetonitrile :0.0 5moL·L -1 sodium phosphate monobasic solution (25∶75) was used as the mob ile phase. The flow rate was 1.0mL·min -1.The detection wavelength was set as 278nm.RESULTS The linear range was 526.4~2632.0ng, and the average re covery rate was 98.87%, with RSD=1.1%.CONCLUSION The method is simple, reliable, accurate and can be applied t... | | 目的 建立高效液相色谱法测定大黄庶虫虫丸中黄芩苷含量的方法。方法 采用LUNAC18 (2)色谱柱,乙腈0. 05moL·L-1磷酸二氢钠缓冲液(用磷酸调pH至3. 0) =25∶75,流速为1. 0mL·min-1,检测波长为278nm。结果 黄芩苷线性范围为526. 4~2632. 0ng,平均回收率=98. 87%,RSD=1. 1%。结论 该方法简便、可靠、准确,可用于该制剂的质量控制。 | | 文摘来源 | |   | | << 更多相关文摘 |
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