²é¿´: 849  |  »Ø¸´: 2
±¾Ìû²úÉú 1 ¸ö ·­ÒëEPI £¬µã»÷ÕâÀï½øÐв鿴

Ô¥ÈÃ

½ð³æ (ÕýʽдÊÖ)

[ÇóÖú] ÇóÖú

Losses were mainly due to the presence of emulsions; it was found that resveratrol was not present in these emulsions. The binaries methanol/cyclohexane and ethanol/cyclohexane were not usable for the operation, since with methanol and ethanol, most of the alcohol passes into the aqueous phase. The mass of the aqueous phase increased, approximately, to the initial mass of alcohol. For other mixtures, the proportion of cyclohexane for the same binary greatly affected the yield and selectivity. Whatever the mixture used, the proportion x of 33% of cyclohexane gave the best yields, showing that a higher proportion of alcohol is
needed to ensure a good transfer. However, the selectivity is reduced in the same proportion. The most interesting result involving satisfactory selectivity and yield, 6.4¡ë and 93% respectively, was obtained for the mixture: cyclohexane/pentanol (67/33). For x = 33%, while resveratrol was transferred into the organic phase
(yield 96%), the selectivity decreased (3.3¡ë).

» ²ÂÄãϲ»¶

ÒѾ­²»ÖªµÀ£¬×Ô¼º´¦ÓÚÈËÉúÖеÄʲô½×¶ÎÁË....
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

terry_well

ÈÙÓþ°æÖ÷ (ÖªÃû×÷¼Ò)

Ц°¾½¬ºý¡ª¡ªÂúÄÔ½¬ºý

ÓÅÐã°æÖ÷ÓÅÐã°æÖ÷

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï
°®ÓëÓêÏÂ(½ð±Ò+2): 2011-11-30 08:39:11
Ô¥ÈÃ(½ð±Ò+2): 2011-11-30 12:08:16
ÈéÒºµÄ¼ÓÈëÊǵ¼ÖÂËðʧµÄÖ÷ÒªÔ­Òò£¬¶øÑо¿·¢ÏÖÈéÒºÖв»´æÔÚ°×޼«´¼¡£ÔÚÕâ¸öʵÑé¹ý³ÌÖУ¬²»ÄܲÉÓü״¼/»·¼ºÍéºÍÒÒ´¼/»·¼ºÍéµÈ¶þÔª»ìºÏÈܼÁ£¬ÒòΪÕâÁ½ÖÖÈܼÁÖеĴ¼Àà¾ßÓÐË®ÈÜÐÔ¡£µ±´¼ÈÜÈëË®ºó£¬Ë®ÏàÖÊÁ¿»áÔö¼Óµ½¾Æ¾«µÄ³õʼÖÊÁ¿¡£¶ÔÓÚÆäËûº¬Óл·¼ºÍéµÄ»ìºÏÌåϵ£¬»·¼ºÍéµÄº¬Á¿¶Ô²úÆ·µÄ²úÂʺÍÑ¡ÔñÐÔÓнϴóÓ°Ïì¡£ÎÞÂÛÓëʲôÑùµÄÈܼÁÅäÎéʹÓã¬33%µÄ»·¼ºÍéʱ¿ÉÒÔ»ñµÃ×î´óµÄ²úÂÊ£¬´Ëʱ¾Æ¾«µÄº¬Á¿Òª¾¡¿ÉÄܸ߱£ÒÔÖ¤½ÏºÃµÄÇ¨ÒÆÐÔ¡£È»¶ø£¬´ËʱȴÎþÉüÁ˲úÎïµÄÑ¡ÔñÐÔ¡£¸Ã¶þÔª»ìºÏÈܼÁÖÐÎì´¼ºÍ»·¼ºÍéµÄ×î¼Ñº¬Á¿·Ö±ðÊÇ67%ºÍ33%£¬¾Æ¾«ºÍÕû¸ö»ìºÏÈܼÁµÄ±ÈÀý·Ö±ðΪʱ£¬¿É»ñµÃ×î¼ÑµÄ²úÂÊ93%ºÍ×îºÃµÄ²úÎïÑ¡ÔñÐÔ6.4¡ë£¬¶øµ±x = 33%ʱ£¬°×޼«´¼¿ÉÒÔÇ¨ÒÆÖÁÓлúÏàÖУ¬²úÂÊ´ïµ½96%£¬Ñ¡ÔñÐÔÔòϽµÖÁ3¡ë¡£

ÍâÐУ¬½ö¹©²Î¿¼£¡
Ç©Ãû:Ó¢ÎÄÃû¡°Terry¡±,EC°æ×¨Óã»ÖÐÎÄÃû¡°½¬ºý¸ç¡±£¬¹àˮרÓã¬Ð»Ð»ºÏ×÷£¡
2Â¥2011-11-30 05:08:44
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

terry_well

ÈÙÓþ°æÖ÷ (ÖªÃû×÷¼Ò)

Ц°¾½¬ºý¡ª¡ªÂúÄÔ½¬ºý

ÓÅÐã°æÖ÷ÓÅÐã°æÖ÷

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

Ô¥ÈÃ(½ð±Ò+3, ·­ÒëEPI+1): лл 2011-11-30 08:23:30
ÈéÒºµÄ¼ÓÈëÊǵ¼ÖÂËðʧµÄÖ÷ÒªÔ­Òò£¬¶øÑо¿·¢ÏÖÈéÒºÖв»´æÔÚ°×޼«´¼¡£ÔÚÕâ¸öʵÑé¹ý³ÌÖУ¬²»ÄܲÉÓü״¼/»·¼ºÍéºÍÒÒ´¼/»·¼ºÍéµÈ¶þÔª»ìºÏÈܼÁ£¬ÒòΪÕâÁ½ÖÖÈܼÁÖеĴ¼Àà¾ßÓÐË®ÈÜÐÔ¡£µ±´¼ÈÜÈëË®ºó£¬Ë®ÏàÖÊÁ¿»áÔö¼Óµ½¾Æ¾«µÄ³õʼÖÊÁ¿¡£¶ÔÓÚÆäËûº¬Óл·¼ºÍéµÄ»ìºÏÌåϵ£¬»·¼ºÍéµÄº¬Á¿¶Ô²úÆ·µÄ²úÂʺÍÑ¡ÔñÐÔÓнϴóÓ°Ïì¡£ÎÞÂÛÓëʲôÑùµÄÈܼÁÅäÎéʹÓã¬33%µÄ»·¼ºÍéʱ¿ÉÒÔ»ñµÃ×î´óµÄ²úÂÊ£¬´Ëʱ¾Æ¾«µÄº¬Á¿Òª¾¡¿ÉÄܸ߿ɱ£Ö¤½ÏºÃµÄÇ¨ÒÆÐÔ¡£È»¶ø£¬´ËʱȴÎþÉüÁ˲úÎïµÄÑ¡ÔñÐÔ¡£µ±¸Ã¶þÔª»ìºÏÈܼÁÖÐÎì´¼ºÍ»·¼ºÍéµÄ×î¼Ñº¬Á¿·Ö±ðÊÇ67%ºÍ33%£¬¿É»ñµÃ×î¼ÑµÄ²úÂÊ93%ºÍ×îºÃµÄ²úÎïÑ¡ÔñÐÔ6.4¡ë£¬¶øµ±x = 33%ʱ£¬°×޼«´¼¿ÉÒÔÇ¨ÒÆÖÁÓлúÏàÖУ¬²úÂʿɴﵽ96%£¬Ñ¡ÔñÐÔÔòϽµÖÁ3¡ë¡£

ÍâÐУ¬½ö¹©²Î¿¼£¡ ¸Õ·¢´íÁË¡£
Ç©Ãû:Ó¢ÎÄÃû¡°Terry¡±,EC°æ×¨Óã»ÖÐÎÄÃû¡°½¬ºý¸ç¡±£¬¹àˮרÓã¬Ð»Ð»ºÏ×÷£¡
3Â¥2011-11-30 05:11:32
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ Ô¥Èà µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] ±¾ÈË¿¼085602 »¯Ñ§¹¤³Ì ר˶ +11 ²»ÖªµÀ½Ðʲô£¡ 2026-03-15 13/650 2026-03-16 15:10 by ÁËÁËÁËÁË¡£¡£
[¿¼ÑÐ] 311Çóµ÷¼Á +4 26ÑÐ0 2026-03-15 4/200 2026-03-16 14:46 by ¿Éµ­²»¿ÉÍü
[¿¼ÑÐ] 326Çóµ÷¼Á +3 ŵ±´¶û»¯Ñ§½±êéê 2026-03-15 3/150 2026-03-16 13:51 by houyaoxu
[¿¼ÑÐ] 304Çóµ÷¼Á +6 СÐÜjoy 2026-03-14 6/300 2026-03-16 12:59 by Iveryant
[¿¼ÑÐ] 344Çóµ÷¼Á +3 knight344 2026-03-16 3/150 2026-03-16 09:42 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] Çóµ÷¼Á +6 yfihxh 2026-03-09 6/300 2026-03-14 01:18 by JourneyLucky
[¿¼ÑÐ] ²ÄÁϹ¤³Ìר˶£¬Ò»Ö¾Ô¸Öйú¿óÒµ´óѧ£¬×Ü·Ö314£¬Çóµ÷¼Á +5 ÎÞи¿É»÷µÄ¾ÞÈË 2026-03-10 5/250 2026-03-14 00:37 by JourneyLucky
[¿¼ÑÐ] £¨081700£©»¯Ñ§¹¤³ÌÓë¼¼Êõ-298·ÖÇóµ÷¼Á +12 11À²À²À² 2026-03-11 35/1750 2026-03-13 21:25 by JourneyLucky
[¿¼ÑÐ] ¡¾¿¼Ñе÷¼ÁÇóÊÕÁô¡¿ +3 Ceciilia 2026-03-11 3/150 2026-03-13 20:18 by JourneyLucky
[¿¼ÑÐ] 293Çóµ÷¼Á +3 ÊÀ½çÊ׸» 2026-03-11 3/150 2026-03-13 16:27 by JourneyLucky
[¿¼ÑÐ] 302Çóµ÷¼Á +6 ¸ºÐÄÕßµ±Öï 2026-03-11 6/300 2026-03-13 16:11 by JourneyLucky
[¿¼ÑÐ] Çóµ÷¼Á +7 18880831720 2026-03-11 7/350 2026-03-13 16:10 by JourneyLucky
[¿¼ÑÐ] ²ÄÁÏ301·ÖÇóµ÷¼Á +5 Liyouyumairs 2026-03-12 5/250 2026-03-13 14:42 by JourneyLucky
[ÂÛÎÄͶ¸å] Ͷ¸åÎÊÌâ 5+4 Ðǹâ²ÓÀÃxt 2026-03-12 6/300 2026-03-13 14:17 by god_tian
[¿¼ÑÐ] 070303Ò»Ö¾Ô¸Î÷±±´óѧѧ˶310ÕÒµ÷¼Á +3 dÈçÔ¸Éϰ¶ 2026-03-13 3/150 2026-03-13 10:43 by houyaoxu
[¿¼ÑÐ] 296Çóµ÷¼Á +3 ´ó¿Ú³Ô·¹ ÉíÌ彡 2026-03-13 3/150 2026-03-13 10:31 by ѧԱ8dgXkO
[¿¼ÑÐ] 08ʳƷ»òÇṤÇóµ÷¼Á£¬±¾¿Æ·¢±í3ƪsciÒ»ÇøtopÂÛÎÄ£¬Ò»Ö¾Ô¸ÄÏʦ´óʳƷ¿ÆÑ§Ó빤³Ì +3 ÎÒÊÇÒ»¸ö±ø£¬ 2026-03-10 3/150 2026-03-13 10:21 by Yuyi.
[¿¼ÑÐ] ¹¤¿Æ0856ר˶»¯Ñ§¹¤³Ì269Äܵ÷¼ÁÂð +10 ÎÒÏë¶ÁÑÐ11 2026-03-10 10/500 2026-03-13 10:14 by Yuyi.
[¿¼ÑÐ] 333Çóµ÷¼Á +3 152697 2026-03-12 4/200 2026-03-13 07:08 by Iveryant
[¿¼ÑÐ] 298Çóµ÷¼Á +3 Vvѽ£¡ 2026-03-10 3/150 2026-03-10 22:40 by ½£Ê«¶Å¿µ
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û