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2Â¥2012-06-10 19:31:47
kaola0916
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karl2100: ½ð±Ò+1, лл£¡ 2012-06-11 00:23:28
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karl2100: ½ð±Ò+1, лл£¡ 2012-06-11 00:23:28
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HMQC---Heteronuclear Multiple Quantum Correlation£¬ÒìºË¶àÁ¿×ÓÏà¹Ø; HSQC---Heteronuclear Single Quantum Correlation£¬ÒìºËµ¥Á¿×ÓÏà¹Ø; HMBC---Heteronuclear Multiple Bond Correlation£¬ÒìºË¶à¼üÏà¹Ø¡£ ǰÁ½Õß¿´µ½µÄ¶¼ÊÇ̼ÇâÖ±½ÓÏàÁ¬µÄÏà¹ØÐźţ»ºóÕß¿´µ½µÄÊÇÏà¸ô2¡¢3¸ù¼üµÄ̼ÇâÏà¹Ø¡£ ¾ÀÕýÒ»ÏÂÂ¥ÉÏ£¬ÉÏÊö¿´µ½µÄ¶¼ÊÇC-HÏà¹ØÐźš£H-HµÄÊÇH-H COSYÆ×£¬ÖÁÓÚC-CµÄÃ²ËÆÃ»Ìý¹ý°¡£¡ ÁíÍ⣬¹ØÓÚǰÁ½ÕßµÄÇø±ðÎÄÏ×ÉÏÊÇÕâÑù˵µÄ£ºBoth the HSQC and HMQC provide the exact same information. The differences are technical and involve signal-to-noise ratio. The HSQC has a sensitivity-enhanced version that provides a factor of two of improvement in sensitivity for methine protons (only) and amide nitrogen. If you are interested in CHs and NHs then choose the HSQC. |
3Â¥2012-06-10 20:41:31
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leecius: ½ð±Ò+1, лл²ÎÓ룡 2012-06-11 08:57:55
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leecius: ½ð±Ò+1, лл²ÎÓ룡 2012-06-11 08:57:55
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