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中成药脑乐静来源《金匮要略》甘麦大枣汤方剂,已收载于湖南、湖北、河北等省的药品规范内。我们采用磷铝酸铵比色法分别测定了以小麦和麸皮为原料配制的二种脑乐静中含磷量,获得满意结果。一、试剂1.钼酸铵溶液:称取2.5g分析纯钼酸铵[(NH_4)_6MO_7O_(24)·H_2O],溶于15ml蒸馏水中,冷却后,将钼酸铵水溶液加到硫酸溶液中,再用蒸馏水稀释至100ml。2.磷酸二氢钾标准溶液:精密称取0.1165g分析纯干燥磷酸二氢钾[KH_2PO_4],溶于蒸馏水中,稀释至1000ml,取10ml,稀释至500ml。则1ml等于0.010mgPO_3。3.二氯化锡甘油溶液:称取2.5g二氯化锡[SnCl_2·2H_2O],溶于100ml甘油中。在温热水
The Chinese medicine “Bao Le Jing” originated from “Jin Qi Yao Lue” Gan Mai Da Zao Tang Prescription, has been included in Hunan, Hubei, Hebei and other provinces within the drug specifications. We used the ammonium aluminophosphate colorimetric method to determine the phosphorus content of two kinds of brain-look and static prepared from wheat and bran, respectively, and obtained satisfactory results. I. Reagent 1. Ammonium molybdate solution: Weigh 2.5g of analytically pure ammonium molybdate [(NH 4 ) 6MO 7 O 24 H 2 O], dissolve in 15 ml distilled water, cool, add ammonium molybdate aqueous solution to sulfuric acid solution , Diluted to 100ml with distilled water. 2. Potassium dihydrogen phosphate standard solution: Weigh accurately 0.1165g of analytically pure potassium dihydrogen phosphate [KH2PO4], dissolve in distilled water, dilute to 1000ml, take 10ml, dilute to 500ml. Then 1ml is equal to 0.010mg PO_3. 3. Tin dichloride glycerin solution: Weigh 2.5g of tin chloride [SnCl_2 · 2H_2O], dissolved in 100ml of glycerol. In warm water