藥物分析-習(xí)題與參考答案

藥物分析（習(xí)題）藥物分析（習(xí)題）第第頁/共4頁三、計(jì)算題（本大題共9小題）解:標(biāo)示量％T(V0V)FWW羊標(biāo)示量100%18,02103(39.8422.92)0.050205.76800.05 100.35760.5100%98.7%答：阿司匹林片的含量為標(biāo)示量的 98.7%。20.解:鹽酸普魯卡因標(biāo)示量3 , 、一13.6410 (V標(biāo)示量％T(V0V)FWW羊標(biāo)示量100%18,02103(39.8422.92)0.050205.76800.05 100.35760.5100%98.7%答：阿司匹林片的含量為標(biāo)示量的 98.7%。20.解:鹽酸普魯卡因標(biāo)示量3 , 、一13.6410 (V。V)CNaOH%=標(biāo)示量取樣量0.05100%13,64103(25.3810.56)0.05012

1%20.000.05100%=101.3%答：鹽酸普魯卡因注射液標(biāo)示量的百分含量為 101.3%。21.解:苯巴比妥％TVFW一一3 一23.2210 16.880.1025 99.3%0.40450.1答：苯巴比妥的百分含量為99.3%。22.解:100%利血平％0.604W一一3201035n—100%501000.594 10050 50.0205100%99.2%答：利血平的含量為99.2%。23.解:每片含量（V0V樣）TF滴定液W(25.38W11.56)2.5490.050120.42320.05 0.1089137mg=0.137g答：本品每片含氫氧化鋁按氧化鋁（ A12O3）計(jì)算為0.137g。24.解:含量％（V。V樣）TF滴定液W標(biāo)示量W100%(19.3710.98)12.390.10322.520含量％0.10.37861000.11000

25020-100%89.3%89.3%。89.3%。25.解:標(biāo)示量％E1cml100V樣每毫升標(biāo)示量CI100%式中，A：m軸居［era.供試品的吸光度;吸收系數(shù)；l：光路長度，cm;n：稀釋倍數(shù)；V樣:供試品的體積,0.536標(biāo)示量％ml。V樣:供試品的體積,0.536標(biāo)示量％ml。500502521711002.510103100%98.8%答：馬來酸氯苯那敏注射液標(biāo)示量的百分含量為98.898.8%答：馬來酸氯苯那敏注射液標(biāo)示量的百分含量為98.8%。26.解:標(biāo)示量％E1cm標(biāo)示量％E1cml100V樣每毫升標(biāo)示量100%200

0.4850-100%93.72%樣1標(biāo)示量％ 1-100%93.72%207110050.001

2000.4863-樣2標(biāo)示量% 1 100%93.97%207110050.001平均值 93.72%93.97%93.84%93.8%2答：維生素B12注射液的標(biāo)示百分含量為93.8%。27.解：每片含量式中，△A樣：供試品的吸光度;△A對：對照品的吸光度；C對：對照品的濃度；W:供試品的重量；W:平均片重。0.6580.058 502 100100每片含量0.50020.6470.032100100 2每片含量0.50020.06210.60