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GB14750-2010ºÍUSP 37 <571>¶¼ÓйØÓÚ×ÏÍâ·¨²â¶¨Î¬ÉúËØAº¬Á¿µÄ¼ÆË㹫ʽ£¬ÄκÎÎÒÍêÈ«¿´²»¶®£¡ Çë½Ì¸÷룬ÓÐËÄܰïæ½âÊÍÒ»ÏÂÕâÁ½¸ö¹«Ê½ÊÇÔõÃ´ÍÆµ¼³öÀ´µÄÂð£¿Ôõô¶¼Ã»±êÃ÷Îü¹âϵÊýÊǶàÉÙѽ£¿1900ºÍ0.549ÊÇʲô£¿USPÖС®Result¡¯ºÍ¡®C¡¯´ú±íʲôº¬Ò壬µ¥Î»ÊÇʲô£¿ GB14750-2010 x=E_1cm^(1%) (328cm)¡Á1900 ÆäÖУº x--------------ÿ¿ËÑùÆ·Öк¬ÓÐάÉúËØAµÄIU E_1cm^(1%)--------°Ù·ÖÎüÊÕϵÊý USP37 <571> Calculate the Vitamin A, in mg, in the portion of sample taken using the following formulas: Result=(0.549¡ÁA_325)/(L¡ÁC) L=Length of absorption cell (cm) C=Concentration in the final isopropyl alcohol solution of test specimen (g/100ml) or capsules or tablets (units/100ml) |
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