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The concentration of the gold colloid was 13 nM determined by absorbance at 520 nm using an extinction coefficient of 2.7¡Á108 M−1 cm−1. Õâ¾ä»°ºÎ½â£¿ 2.7¡Á108 M−1 cm−1. Õâ¸öÊÇÄÄÀïÀ´µÄ£¿ ÔõôËã³öÀ´Å¨¶ÈÊÇ13nmµÄ£¿ [ Last edited by zdy1398 on 2011-1-2 at 21:50 ] |
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