±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 440  |  »Ø¸´: 4
µ±Ç°Ö÷ÌâÒѾ­´æµµ¡£
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

¾²Ô¶Ë¼

ľ³æ (ÕýʽдÊÖ)

[½»Á÷] ¡¾ÇóÖú¡¿»Ø¸´Éó¸åÈ˵ÄÒ»¸öÎÊÌ⣬Çó°ï棡£¡£¡

p. 5, l. 50-53: It is surprising that the SPE columns are equilibrated with acetonitrile, the same solvent as used for elution. It might be expected that the target compound is not very efficiently trapped on the SPE cartridge. Normally, the RP SPE material is activated with organic solvent then equilibrated with water or water/organic solvent (a weakly eluting medium). The latter allows for efficient retention of the sample compound.
ÕâÊÇÉó¸åÈ˵ÄÎÊÌ⣬ÕâÊÇ×öÍÁÈÀʱµÄÎÊÌ⣬ÎÒÓõÄÊǹÌÏàÝÍȡСÖùC18£¬ÒÒëæ»î»¯£¬È»ºóÖ±½ÓÉÏÑù£¨ÒÒëæÌáÈ¡µÄ£©£¬×îºóÓÃÒÒëæÏ´ÍÑ£¡Éó¸åÈË˵Õâ²»·ûºÏÒ»°ã¹æ³Ì£¡Çë´ó¼Ò°ï°ï棬¿´Èκλظ´£¿»òÕßÓÐÏà¹ØµÄ²Î¿¼ÎÄÏ×Ìṩ£¡Ð»Ð»°ï棡£¡
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Áø³ÉÒõ

°æÖ÷ (ÎÄ̳¾«Ó¢)

С×鳤

¡ï
¾²Ô¶Ë¼(½ð±Ò+1):лл²ÎÓë
¸Ð¾õÕâ¸öÉó¸åÈËÓÐÎó½â

ÄãÓô¿ÒÒëæÏ´ÍÑ£¿

ÔÚÉÏÑùǰÓÃÒÒëæ³ä·Ö³åÏ´SPEÖùÓ¦¸ÃûʲôÎÊÌ⣬ÕâÑù¿ÉÄÜʹÉÏÃæ±£ÁôµÄÔÓÖÊʲôµÄ±»³åÏ´µô¡£

ÉÏÑùʱ±ØÐèÊÇË®»òÊǵÍÒÒëæÅ¨¶ÈµÄÉÏÑùÒº£¬ÕâÑùÈ·±£ÑùÆ·±»±£ÁôÔÚÖùÉÏ¡£

Ï´ÍѵÄʱºò»»³ÉÒÒëæÈÜÒº£¬¶ø²»ÊǼòµ¥µÄ´¿ÒÒëæ¡£´¿ÒÒëæÏ´ÍÑÄÜÁ¦Ì«Ç¿£¬Æð²»µ½·ÖÀëµÄ×÷Óá£
4Â¥2010-03-17 18:04:06
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 5 ¸ö»Ø´ð

xize12

½ð³æ (СÓÐÃûÆø)

¡ï
¾²Ô¶Ë¼(½ð±Ò+1):лл²ÎÓë
ÄãÓõÄÈ«ÊÇÒÒëæ£¬Éϲ»ÉÏÑù½á¹ûÏà²î²»¶à°É£¬ÄãÓÐ×ö¹ý¶Ô±ÈÂð
2Â¥2010-03-17 11:27:53
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

¾²Ô¶Ë¼

ľ³æ (ÕýʽдÊÖ)

Êǰ¡£¬µ±Ê±ÎÒ¿´É«Æ×ͼû̫¶à¸ÉÈÅ£¬Ò²¾ÍûÏëÄÇô¶à
3Â¥2010-03-17 11:30:21
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Áø³ÉÒõ

°æÖ÷ (ÎÄ̳¾«Ó¢)

С×鳤

¡ï ¡ï
¼Ñâù(½ð±Ò+2):Áø°æºÜ¾ÃûÔÚ·ÖÎö³öÏÖÁË 2010-03-17 20:23
ÕâÀïÃæËµµ½ÁËÆ½ºâ£¬Ò»°ãÓÃÓëÉÏÑùµÄÑùÆ·ÀàËÆµÄÁ÷¶¯Ïà¡£
ÉÏÑùÓõÄË®ÈÜÒº£¬ÄÇôƽºâÒ²ÓÃË®¡£
5Â¥2010-03-17 18:05:45
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 271·ÖÇóµ÷¼ÁѧУ +10 zph158488£¡ 2026-04-02 10/500 2026-04-03 14:31 by 1753564080
[¿¼ÑÐ] Çóµ÷¼Á +9 akdhjs 2026-03-31 11/550 2026-04-03 13:32 by akdhjs
[¿¼ÑÐ] 285Çóµ÷¼Á +6 FZAC123 2026-03-30 6/300 2026-04-03 12:22 by xingguangj
[¿¼ÑÐ] 306·Ö²ÄÁÏÓ뻯¹¤Çóµ÷¼Á +4 Àè°ÉÀ²À²ÄãºÜÓÐà 2026-04-03 4/200 2026-04-03 11:24 by wangjy2002
[¿¼ÑÐ] 281Çóµ÷¼Á +3 aaawhy 2026-04-03 3/150 2026-04-03 11:02 by ditto77778
[¿¼ÑÐ] 309Çóµ÷¼Á +14 ´ô¹½²»ÊÇ´÷·ò 2026-04-02 14/700 2026-04-03 09:42 by À¶ÔÆË¼Óê
[¿¼ÑÐ] 326Çóµ÷¼Á +10 áÌáÌ×Ð 2026-04-02 10/500 2026-04-03 09:08 by ÅÁ¶ûÂíÀ­ÌØ
[¿¼ÑÐ] 085600µ÷¼Á +3 1amJJ 2026-04-02 3/150 2026-04-02 22:00 by ¿ÆÑÐСר¼Ò
[¿¼ÑÐ] 085600£¬320·ÖÇóµ÷¼Á +6 ´ó²öС×Ó 2026-04-02 6/300 2026-04-02 21:54 by dongzh2009
[¿¼ÑÐ] 293Çóµ÷¼Á +4 çæçæÀÖ 2026-04-02 4/200 2026-04-02 20:10 by 6781022
[¿¼ÑÐ] 413Çóµ÷¼Á +3 ¿Âijij 2026-03-31 3/150 2026-04-02 16:59 by zzsw+
[¿¼ÑÐ] 285Çóµ÷¼Á +14 AZMK 2026-04-02 14/700 2026-04-02 15:54 by ÉϾÅÌìÀ¿Ô£¨ºÃÔ
[¿¼ÑÐ] Ò»Ö¾Ô¸±±½»´ó²ÄÁϹ¤³Ì×Ü·Ö358 +8 cs0106 2026-04-01 9/450 2026-04-02 10:36 by ²»³Ôô~µÄ؈
[¿¼ÑÐ] 348»·¾³¹¤³Ìµ÷¼Á +3 ÎâÑå׿24k 2026-04-01 3/150 2026-04-02 09:14 by nanaliuyun
[¿¼ÑÐ] 285Çóµ÷¼Á +11 AZMK 2026-04-01 11/550 2026-04-01 22:40 by peike
[¿¼ÑÐ] 266·Ö£¬Ò»Ö¾Ô¸µçÆø¹¤³Ì£¬±¾¿Æ²ÄÁÏ£¬Çó²ÄÁÏרҵµ÷¼Á +10 ÍÛºôºßºôºß 2026-04-01 11/550 2026-04-01 21:48 by chyhaha
[¿¼ÑÐ] ²ÄÁϵ÷¼Á +10 Eujd1 2026-03-31 11/550 2026-04-01 11:23 by ivanqyq
[¿¼ÑÐ] 333Çóµ÷¼Á +4 °¢¿ÆÒÝ 2026-03-31 4/200 2026-04-01 09:11 by jp9609
[¿¼ÑÐ] ²ÄÁÏÓ뻯¹¤272Çóµ÷¼Á +25 °¢Ë¹µÙ·Ò2004 2026-03-28 25/1250 2026-03-31 16:27 by hypershenger
[¿¼ÑÐ] 323·Ö ʳƷÓëÓªÑøµ÷¼Á +3 ºÙooo 2026-03-31 3/150 2026-03-31 09:38 by longlotian
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û