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| These bands were attributed to v(C=O) stretching of amides from proteins (amide I, ~1652 cm-1);¦Ä (N¨CH) bending of amides from proteins (amide II, ~1540 cm-1);¦Äas(CH2) and ¦Äas(CH3) bending of methyl from proteins (~1452 cm-1);¦Äs(CH2) and ¦Äs(CH3) bending of methyl and vs (C¨CO) stretching of COO- groups (~1380 cm-1) and Vas (>P=O) stretching, associated with phosphorus compounds (~1245 cm-1). Two bands were of particular importance in reference to the P quota relationship ¨C the band at 1735 cm-1 , associated with v(C=O) of ester groups, primarily from lipids and fatty acids, and the region from 1180¨C950 cm-1 associated with v(C¨CO¨CC) stretching of polysaccharides. |
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sunlinahhxx: ½ð±Ò+10, ·ÒëEPI+1, ¡ï¡ï¡ïºÜÓаïÖú 2013-05-31 21:30:38
sunlinahhxx: ½ð±Ò+10, ·ÒëEPI+1, ¡ï¡ï¡ïºÜÓаïÖú 2013-05-31 21:30:38
| ÕâЩÆ×·å¹éÊôÓÚµ°°×ÖÊÖа±»ùµÄC=OÉìËõÕñ¶¯£¨°±»ùI´ø£¬~1652 cm-1£©¡¢N-HÍäÇúÕñ¶¯£¨°±»ùII´ø£¬~1540 cm-1£©¡¢µ°°×ÖÊÖм׻ùµÄCH2¡¢CH3·Ç¶Ô³ÆÍäÇúÕñ¶¯£¨~1452 cm-1£©¼°¶Ô³ÆÍäÇúÕñ¶¯¡¢COO-ÖÐC-O¶Ô³ÆÉìËõÕñ¶¯£¨~1380 cm-1£©¼°>P=O·Ç¶Ô³ÆÉìËõÕñ¶¯£¨À´×ÔÁ×»¯ºÏÎ~1245 cm-1£©¡£ÆäÖÐÓÐÁ½¸öÖØÒªµÄÆ×·åºÍPµÄ¶¨Á¿Óйءª¡ª1735 cm-1´¦µÄõ¥ôÊ»ùµÄ·å£¨Ö÷ÒªÀ´×ÔÁ×Ö¬ºÍÖ¬·¾ËᣩÒÔ¼°1180-950cm-1Çø¼äµÄ·å£¨Ö÷ÒªÀ´×Ô¶àÌÇÖеÄC-O-CÉìËõÕñ¶¯£©¡£ |
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