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GPC determinations are performed with PMMA standards and ¡°universal calibration¡±. Does this mean that the intrinsic viscosity of the copolymer samples was determined, as for instance with a viscosity detector in addition to the refractive index detector?
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2Â¥: Originally posted by ambyshine at 2012-08-29 17:50:00
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A series of poly(methyl methacrylate) (PMMA) narrow standards were used to generate a universal calibration curve. ÎÒÔ­ÎÄÖÐÊÇÕâÑùдµÄ£¬ÓÐʲô²»Í×Âð£¿ËûΪʲô»áÕâôÎÊÄØ
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3Â¥: Originally posted by ½õ½õ at 2012-08-29 19:06:03
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4Â¥: Originally posted by ambyshine at 2012-08-29 21:09:02
Èç¹û²»ÊÇÓõÄtriple detection£¬Äã¾Í»Ø´ð˵¡®sorryÄÇÉ¶ÌØÐÔð¤¶È°³Ã»²â¡£The system was calibrated using a series of poly(methyl methacrylate) (PMMA) narrow standards, and the molecular weights of the sam ...

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6Â¥: Originally posted by 501Visco at 2012-08-29 21:53:30
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