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koalaone

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chinaherbfans

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koalaone: ½ð±Ò+3 2012-11-13 07:32:56
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7Â¥2012-11-12 09:10:16
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catwithdog

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koalaone: ½ð±Ò+1 2012-11-13 07:54:07
My experience as your reference:
1.        ÆøÏà²â²ÐÁôÈܼÁµÄ»ØÊÕÂÊ: 80%-120%.
2.        Ô­ÁϲÐÁôÈܼÁµÄ·½·¨Ñ§ÑéÖ¤£¬µ«²âµÃµÄ»ØÊÕÂʱȽϸß: since you are working on Ô­ÁϲÐÁôÈܼÁ, you cannot add your  reference standard to placebo to measure your recovery. You only can use  Ô­ÁÏ +  80%, 100%, 120% working standard solution (100% working standard solution is ICH limit level) to calculate recovery%. To troubleshooting »ØÊÕÂʱȽϸß
1)        When you measure your sample(Ô­ÁÏ), you may measure your sample n=3 or 5 to get mean value.
2)        Prepare sample in a fast or correct way (ÎÒ100mg¶¨Èݵ½1ml, this is not normal way to do, the volume is too low that will be difficult to manage sample evaporation) to avoid sample evaporation.
3)        Sample + matrix interaction may cause this issue too. You can try different solvent (matrix) to dissolve your sample.
4)        If still cannot get right recovery%, you may try internal standard or external standard method.
11Â¥2012-11-13 03:48:41
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chinaherbfans

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´ÓÍ·¿ªÊ¼: ½ð±Ò+1, ¸Ðл²ÎÓë 2012-11-09 09:19:06
koalaone: ½ð±Ò+1 2012-11-10 08:35:21
80-120%,¿É²éÔÄÒ©µä¸½Â¼
2Â¥2012-11-09 09:17:16
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catherinelcc

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3Â¥2012-11-10 07:19:29
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koalaone

ľ³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
2Â¥: Originally posted by chinaherbfans at 2012-11-09 09:17:16
80-120%,¿É²éÔÄÒ©µä¸½Â¼

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´ÓÍ·¿ªÊ¼: ½ð±Ò+2, ¸Ðл²ÎÓë 2012-11-10 13:15:13
koalaone: ½ð±Ò+1 2012-11-12 08:14:12
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5Â¥2012-11-10 12:48:42
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½ð³æ (СÓÐÃûÆø)

´ÓÍ·¿ªÊ¼: ÆÁ±ÎÄÚÈÝ 2012-11-10 13:15:18
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6Â¥2012-11-10 13:06:59
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digghost

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koalaone: ½ð±Ò+1 2012-11-13 07:33:29
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8Â¥2012-11-12 10:10:09
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asz_yy

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marktiger: ½ð±Ò+1, ¹ÄÀøÓ¦Öú£¬»¶Ó­²ÎÓë¡£ 2012-11-13 08:07:50
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qyj21

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marktiger: ½ð±Ò+1, ¹ÄÀøÓ¦Öú£¬»¶Ó­²ÎÓë¡£ 2012-11-13 08:08:07
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