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714850835: ½ð±Ò+10, ²©Ñ§EPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2012-12-27 10:22:39
ËûÃǽøÐÐÁ˳¬ÂË·ÖÀ룬 "the free non-conjugated QDs and byproduct isourea were removed by ultrafiltration using 100 K Nanosep centrifugal devices by centrifugation at 5000 rmp for 15 min"  Ò²¾ÍÊÇ˵ÓÃÀëÐĵķ½·¨£¬ÀëÐĹÜÊÇÌ×ʽµÄ£¨´óÀëÐĹÜÀïÃæÓÐСÀëÐĹܣ¬ÖмäÓÐÂËĤµÄÄÇÖÖ£©£¬Õâ¸ö¸ú×öPCR֮ǰµÄºËËáÌáÈ¡·½·¨²î²»¶à£¬±ê¼ÇºÃµÄQDsÁôÔÚÁËÉϲãÀfreeµÄÂ˵½ÁËϲ㣨The lower phase, contain-ing free QDs and isourea,  were discarded.£©¡£
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