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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? ²»Àí½âÉó¸åÈËÌáµÄÎÊÌâÊÇʲôÒâ˼£¬Çë¸ßÊÖ°ïæ£¡Ð»Ð»£¡ |
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11Â¥2012-08-30 19:00:40
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Ìú³æ (ÖøÃûдÊÖ)
- Ó¦Öú: 39 (СѧÉú)
- ½ð±Ò: 1595.2
- É¢½ð: 44
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zznjut: ½ð±Ò+4, »¶Ó½»Á÷ 2012-08-30 08:46:40
ying119513: ½ð±Ò+3, ¡ï¡ï¡ïºÜÓаïÖú 2012-08-30 17:41:02
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zznjut: ½ð±Ò+4, »¶Ó½»Á÷ 2012-08-30 08:46:40
ying119513: ½ð±Ò+3, ¡ï¡ï¡ïºÜÓаïÖú 2012-08-30 17:41:02
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Ëû¿ÉÄܲ»Àí½âÄã˵µÄ¡°universal calibration¡±¡£ÎÊÄãÓÐûÓÐÓÃÓÃviscosity detector²â¹²¾ÛÎïµÄÌØÐÔð¤¶È¡£Õâ¾ÍÒª¿´ÄãµÄGPCÁË£¬³ýÁËÓÐRI detectorÖ®Í⣬»¹ÓÐûÓÐviscosity detector£¿ triple detection GPCÊÇÓеġ£ |
2Â¥2012-08-29 17:50:00
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3Â¥2012-08-29 19:06:03
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Ìú³æ (ÖøÃûдÊÖ)
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ying119513: ½ð±Ò+3, ¡ï¡ï¡ïºÜÓаïÖú 2012-08-30 17:41:45
ying119513: ½ð±Ò+3, ¡ï¡ï¡ïºÜÓаïÖú 2012-08-30 17:41:45
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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 samples were referenced to PMMA... ¡¯¾ÍÐÐÁË¡£¡£¡£ |
4Â¥2012-08-29 21:09:02













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