±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 133  |  »Ø¸´: 0
µ±Ç°Ö÷ÌâÒѾ­´æµµ¡£

blugduaps

½ð³æ (СÓÐÃûÆø)

[½»Á÷] ÇóÖú:CE-ECLÁªÓÃ

¸÷λÈÊÐÖ,´ó¼ÒºÃ!
ÔÚÏÂÊǸãCE-ECLÁªÓõÄ,ÏÖÓÐһƪ·Ç³£ÖØÒªµÄÎÄÏ×ÎÒÃÇѧУµÄÊý¾Ý¿âÀï¿´²»µ½È«ÎÄÖ»ÓÐÕªÒª,Ï£ÍûÄÄλºÃÐÄÈ˰ïÎÒÕÒÕÒÈ«ÎÄ,ÏÈллÁË!
S. Douglass Gilman, Charlotte E. Silverman, Andrew G. Ewing *
Electrogenerated chemiluminescence detection for capillary electrophoresis

Journal of Microcolumn Separations

Volume 6, Issue 2 , Pages 97 - 106
Keywords
electrogenerated chemiluminescence ?luminol ?capillary electrophoresis ?microelectrodes


Abstract
Electrogenerated chemiluminescence (ECL) detection based on the reaction of luminol and H2O2 has been developed for capillary electrophoresis. The ECL response at carbon fiber and platinum wire microelectrodes has been investigated. Carbon fiber electrodes are observed to be less sensitive than platinum electrodes but provide a more stable response. The ECL response at a carbon fiber electrode is linear over three orders of magnitude for luminol with a linear correlation coefficient of 0.998. Mass detection limits of 92 amol and 260 amol have been obtained for luminol using platinum wire microelectrodes and carbon fiber microelectrodes, respectively. The influence of hydrogen peroxide concentration (in the detection buffer resrvoir) on the luminescence response has been examined and found to be dependent on electrode type. The dependence of the ECL response on the applied voltage at the microelectrode has been studied for both electrode types. Capillary electrophoresis with ECL detection has been used for analysis of amines derivatized with N-(4-aminobutyl)-N-ethylisoluminol coupled to N, N-disuccinimidylcarbonate (ABEI-DSC). Detection limits of 2.0 fmol and 0.96 fmol are obtained for n-octylamine and n-propylamine, respectively. In addition, ABEI-DSC has been used to successfully label the tripeptide Val-Tyr-Val, and micellar electrokinetic capillary chromatography has been used with ECL detection for the separation of ABEI-DSC labeled amines.

[ Last edited by dongfang1629 on 2007-7-26 at 10:23 ]
»Ø¸´´ËÂ¥
²»Åׯú,²»·ÅÆú!
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ blugduaps µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] ÉúÎïѧ308·ÖÇóµ÷¼Á£¨Ò»Ö¾Ô¸»ª¶«Ê¦´ó£© +6 ÏàÐűػá¹ââÍòÕ 2026-03-31 7/350 2026-04-02 23:16 by JourneyLucky
[¿¼ÑÐ] Ò»Ö¾Ô¸ÄÏ¿ª´óѧ0710ÉúÎïѧ359Çóµ÷¼Á +6 ÍÃÍÃÍÃ111223314 2026-03-29 8/400 2026-04-02 22:37 by louise0220
[¿¼ÑÐ] ¿¼Ñе÷¼Á +3 Àîľ×Ó0120 2026-04-02 5/250 2026-04-02 21:45 by dongzh2009
[¿¼ÑÐ] 0703»¯Ñ§ +5 goldtt 2026-04-02 7/350 2026-04-02 21:32 by dongzh2009
[¿¼ÑÐ] 070300»¯Ñ§Çóµ÷¼Á +8 Æð¸öÃûÕ¦ÕâôÄÑ 2026-03-27 9/450 2026-04-02 20:42 by dongzh2009
[¿¼ÑÐ] Çóµ÷¼ÁÇóµ÷¼Á +7 121. 2026-04-02 7/350 2026-04-02 19:15 by dick_runner
[¿¼ÑÐ] 266Çóµ÷¼Á +4 ѧԱ97LZgn 2026-04-02 4/200 2026-04-02 13:03 by yulian1987
[¿¼ÑÐ] Ò»Ö¾Ô¸±±¾©Àí¹¤´óѧ±¾¿Æ211²ÄÁϹ¤³Ì294Çóµ÷¼Á +8 mikasaµÄΧ½í 2026-03-28 9/450 2026-04-02 12:09 by ms629
[¿¼ÑÐ] 070300»¯Ñ§Çóµ÷¼Á +14 С»ÆÑ¼±¦ 2026-03-30 14/700 2026-04-02 10:07 by oooqiao
[¿¼ÑÐ] 08¹¤¿Æ275·ÖÇóµ÷¼Á +13 AaAa7420 2026-03-31 13/650 2026-04-02 06:19 by 286640313
[¿¼ÑÐ] 296Çóµ÷¼Á +4 Íô£¡£¿£¡ 2026-03-31 7/350 2026-04-01 22:04 by ¿Í¶ûÃÀµÂ
[¿¼ÑÐ] 273Çóµ÷¼Á +19 ÀîÜÆÐÂ1 2026-03-31 19/950 2026-04-01 21:49 by chyhaha
[¿¼ÑÐ] 339Çóµ÷¼Á£¬Ïëµ÷»Ø½­ËÕ +7 ¿¾ÂóÑ¿ 2026-03-27 10/500 2026-04-01 21:35 by 495374996
[¿¼ÑÐ] 086000ÉúÎïÓëÒ½Ò©298µ÷¼ÁÇóÖú +4 ÔªÔªÇàÇà 2026-03-31 6/300 2026-04-01 11:13 by syh9288
[¿¼ÑÐ] Ò»Ö¾Ô¸»ªÄÏʦ·¶361·Ö£¬»¯Ñ§Çóµ÷¼Á +4 Nicole88888 2026-04-01 4/200 2026-04-01 10:08 by ÌÆãå¶ù
[¿¼ÑÐ] 0856Çóµ÷¼Á +9 —öèñ 2026-03-28 9/450 2026-03-31 19:06 by ĺÔó12
[¿¼ÑÐ] Ò»Ö¾Ô¸Äϲý´óѧ324Çóµ÷¼Á +6 hanamiko 2026-03-29 6/300 2026-03-31 16:35 by hypershenger
[¿¼ÑÐ] ±§Ç¸ +3 ÌïºéÓÐ 2026-03-30 3/150 2026-03-30 19:11 by ÃÔºýCCPs
[¿¼ÑÐ] 283Çóµ÷¼Á£¨080500£© +14 A child 2026-03-27 14/700 2026-03-30 12:06 by ̽123
[¿¼ÑÐ] ¸´ÊÔµ÷¼Á +3 raojunqi0129 2026-03-28 3/150 2026-03-28 15:27 by ÂäÉ˼
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û