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ÔÎÄÈçÏ£º For present purposes, a solution can be considered to be ideal if the X-ray scatter from the solute molecoles is not modified by intermolecular interference. It turns out that a dilute solution in which the solute molecules are very much larger than the solvent molecules is idael, in this sense , at low Q values.(X-ray diffraction by disordered and ordered systems. p51) ÉÏÊöÄÚÈÝ´ó¸ÅÊÇ˵¡°Ä¿Ç°¶øÑÔ£¬ÈôÈÜÖÊ·Ö×ÓµÄX-ÉäÏßÉ¢Éä²»±»·Ö×Ó¼ä¸ÉÉæÓ°Ïì, ÕâÖÖÈÜÒº¾Í¿ÉÒÔ±»ÊÓΪÀíÏëÈÜÒº¡£ÊÂʵ֤Ã÷£¬Ï¡ÈÜÒºÖÐÈôÈÜÖÊ·Ö×ÓÔ¶Ô¶´óÓÚÈܼÁ·Ö×ӾͿÉÊÓΪÀíÏ롱¡£ÎÊÌâÀ´ÁË£¬Çë×¢Òâºó°ë²¿·ÖµÄ¡°solute molecules are very much larger than the solvent molecules ¡± ¡£ÇëÎÊÀíÏëÈÜÒºÖв»Í¬×é·ÖµÄ·Ö×Ó²»ÊÇÓ¦¸Ã²î²»¶àÂð£¿Ôõô¿ÉÄÜÈÜÖʺÍÈÜÒºÏà²îºÜ´ó»¹ÊÇÀíÏëÈÜÒº£¿ÁíÍ⣬Çë½ÌÒ»ÏÂQ valuesÊÇʲô²ÎÊý£¿ |
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