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《中国药典》规定,马钱子炮制品中含士的宁量应为

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0.50%~1.0%  1.20%~2.20%  3.0%~3.5%  4.0%~5.0%  5.0%~8.0%  
18%~20%  1.20%~2.20%  0.78%~0.82%  0.20%  0.15%  
盐酸麻黄碱  苦参碱  盐酸小檗碱  硫酸阿托品  士的宁  
18%~20%  1.20%~2.20%  0.78%~0.82%  0.20%  0.15%  
4.0%~5.0%  1.20%~2.20%  5.O%~8.O%  3.0%~3.5%  0.2%~2%  
<0.15%  >0.2%  1.2%~2.2%  0.78%~0.82%  3.0%  
0.5%~1.2%  1.2%~2.2%  2.5%~3.5%  4.0%~5.0%  5.0%~7.0%  
炮制后士的宁含量下降  炮制后马钱子碱含量下降  炮制后总生物碱含量下降  士的宁含量损失较马钱子碱更多  炮制后生物碱的异型结构和氮氧化合物增多  
0.10%~0.20%  0.40%~0.50%  0.78%~0.82%  0.90%~1.00%  1.10%~1.20%  
18%~20%  1.20%~2.20%  0.78%~0.82%  0.20%  0.15%  
18%~20%  1.20%~2.20%  0.78%~0.82%  0.20%  0.15%  
5.0%~8.0%  4.0%~5.0%  3.0%~3.5%  1.20%~2.20%  0.2%~0.2%  
0.78%~0.82%  0.75%~0.80%  0.70%~0.82%  0.80%~0.82%  0.70%~0.80%  
5.0%~8.0%  4.0%一5.0%  3.0%一3.5%  1.20%~2.20%  0.2%~0.2%  
苦参  麻黄  马钱子  连翘  地骨皮  
0.78%~0.82%  >0.2%  1.20%~2.20%  3.0%  <0.15%