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4Â¥: Originally posted by mashengtao at 2011-08-28 17:09:38:
Äã˵µÄ½øÑùµÄÔÓ·å ÒÀÎҵľ­Ñé¿´ ¿ÉÄÜÊÇBDE-209½µ½â²úÉúµÄ ¾ÅäåBDE;
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13C-BDE 209 was not used as an internal standard for BDE 209.  If not, you need to prove that you have similar recoveries between homologue groups. Was there any degradation of BDE 209? BDE-209 is prone to degradation in GC systems and the only way to provide reliable results is through the use of 13C-BDE-209 as internal standard. Some chromatograms could be given as supplementary information.  In addition, there are still some details to be resolved:
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5Â¥2011-08-29 17:33:45
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2Â¥2011-08-26 20:29:20
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2Â¥: Originally posted by mashengtao at 2011-08-26 20:29:20:
BDE-209µÄ²â¶¨¿ÉÒÔͨ¹ýGC-EI-MS£¨ppmŨ¶È¼¶±ð£©
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3Â¥2011-08-27 16:18:42
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mashengtao

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3Â¥: Originally posted by wjx_7297 at 2011-08-27 16:18:42:
ÎÒÓõÄÊÇPCB209×÷ΪÄڱ꣬²ÉÓÃGC-EI-MS¸ßÎÂÉ«Æ×Öù£¨DB-5HT£©sim¼à²âģʽµ¥¶À²â¶¨BDE209µÄ£¬µ«ÊÇÎÒµÄBDE209±êÑùÏÖÔÚÓÐһЩÔӷ壬ÎÒ½ñÌìÅäµÄ±êÑù£¬ÍíÉÏ·ÅÔÚ-20¶È±ù¹ñÀïµ×²ã£¬½á¹ûµÚ¶þÌìÔٲⶨµÄʱºò·åÃæ»ý¾Í¼õÉÙºÜ ...

Äã˵µÄ½øÑùµÄÔÓ·å ÒÀÎҵľ­Ñé¿´ ¿ÉÄÜÊÇBDE-209½µ½â²úÉúµÄ ¾ÅäåBDE;
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ÎÒ½¨Òé±êÑù´Ó±ùÏäÀïÃæÄóöÀ´½øÑù֮ǰҪÔÚ¸ÉÔïÆ÷ÀïÃæÆ½ºâÒ»¶Îʱ¼ä,È»ºóÎÐÐý»ìÔȺó½øÑù;
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4Â¥2011-08-28 17:09:38
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