中文：每一批原料药留样应该保存至有效期后一年或销售后三年，以较长者为准 英文：Reserve samples of each API batch should be retained for one year after the expiry date of the batch assigned by the manufacturer, or for three years after distribution of the batch, whichever is the longer.
中文：取约0.5g样品，精密称定，置50ml量瓶中，用水溶解并稀释至刻度。 英文：Transfer about 0.5g of sample, accurately weighed, to a 50-ml volumetric flask, dissolve and dilute with water to volume. 或：Transfer about 0.5g of sample exactly weighed in a 50-ml volumetric flask, dissolve and dilute to volume with water. 以上基本是美国药典上的写法，欧洲药典通常不会强调“精密”二字，称量的精确性在通则里已有规定了，所以它常常是这样表达的： Dissolve 0.500g of sample in water and dilute to 50ml with the same solvent.
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