【应用】SFC应用——苯基吡啶的纯化-医疗器械网

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【应用】SFC应用——苯基吡啶的纯化

来源：步琦实验室设备贸易（上海）有限公司分类：促销 2024-01-05 13:45:04 5阅读次数

SFC应用—苯基吡啶的纯化

3-苯基吡啶与4-苯基吡啶都是生产高附加值精细化工产品的重要有机原料，随着农药、医药等精细化工行业的蓬勃发展，对两者的需求日益增高。两者的沸点接近（分别为 144.14℃ 和 145℃），性质相似。依靠传统的分离方法，如精馏、普通的溶剂萃取无法将其分离。而采取化学转化法则会有污水量大、产率低等缺点。虽然邻苯二甲酸法和铜盐法研究较多，但相对来说步骤比较繁琐。现如今通过 SFC 可以有效将两者进行分离，高效快速的同时也解决了有机溶剂污水处理量大等难题。

1

SFC 分离条件

设备	Sepiatec SFC-50
色谱柱	AS-H
UV波长	254nm
改性剂	MeOH,5%
进样体积	15 ul
流速	8 ml/min
压力	100bar
温度	40℃

2

实验结果

▲图1.SFC 在 5% MeOH 等度条件下对 3-苯基吡啶与 4-苯基吡啶分离色谱图

3

叠加进样

▲图2. 3-苯基吡啶与 4-苯基吡啶在 6 次叠加进样状态下的分离色谱图

4

结论

与传统的分离方式相比，通过超临界流体色谱可以快速有效的将 3-苯基吡啶与 4-苯基吡啶进行分离，并将分离时间控制在 4min 之内，除此之外，较少的改性剂使用也为用户解决溶剂成本及后续废液处理等烦恼。
通过叠加进行功能，在保证两者分离度的情况下可以更加快速的对样品进行制备，避免非必要的时间等待，叠加进样功能可将每次进样时间控制在 1.6min 以内。

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[8]未定义数组索引: page
[8]未定义数组下标: 0
[2]Declaration of app\common\model\News::getAllList($filter = Array, $limit = 16, $order = Array, $with = Array) should be compatible with app\common\model\BaseModel::getAllList($filter = Array, $with = Array, $limit = 0, $sort = Array, $field = 'a.*', $join = Array)
[2]Declaration of app\common\model\Company::getAllList($filter = Array, $limit = 20) should be compatible with app\common\model\BaseModel::getAllList($filter = Array, $with = Array, $limit = 0, $sort = Array, $field = 'a.*', $join = Array)
[8]未定义数组索引: center
[8]Only variables should be passed by reference
[2]Declaration of app\common\model\NewsComment::getAllList($filter = Array, $limit = 16) should be compatible with app\common\model\BaseModel::getAllList($filter = Array, $with = Array, $limit = 0, $sort = Array, $field = 'a.*', $join = Array)
[8192]Function create_function() is deprecated
[8192]Function create_function() is deprecated
[8]未定义数组索引: area
[8]未定义数组索引: st
[2]Declaration of app\common\model\Topic::getList($filter = Array) should be compatible with app\common\model\BaseModel::getList($filter = Array, $sort = Array)
[2]Declaration of app\common\model\Topic::getAllList($filter = Array, $field = 'id,md5,tit...', $limit = 0) should be compatible with app\common\model\BaseModel::getAllList($filter = Array, $with = Array, $limit = 0, $sort = Array, $field = 'a.*', $join = Array)
[2]Declaration of app\common\model\TopicInfoList::getAllList($filter = Array, $limit = 8) should be compatible with app\common\model\BaseModel::getAllList($filter = Array, $with = Array, $limit = 0, $sort = Array, $field = 'a.*', $join = Array)
[8]未定义数组索引: center
[8]未定义数组索引: cid
[8]未定义数组索引: cid
[8]未定义数组索引: cid
[8]未定义数组索引: cid
[8]未定义数组索引: cid
[8]未定义数组索引: cid
[8]未定义数组索引: cid
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[8]未定义数组索引: cid
[8]未定义数组索引: cid
[8]未定义数组索引: goods_list
[8]未定义数组下标: 0
[8]未定义数组索引: center
[8]未定义数组索引: center
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[8]未定义数组索引: center
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[8]未定义数组索引: wtt_list

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[ SQL ] SELECT `a`.* FROM `user` `a` INNER JOIN `news` `b` ON `a`.`id`=`b`.`user_id` GROUP BY `a`.`id` ORDER BY `b`.`id` DESC LIMIT 10 [ RunTime:0.010658s ]
[ SQL ] SELECT * FROM `user_info` WHERE `user_id` IN (348,351,466,458,209,372,521,819,385,657) [ RunTime:0.000943s ]
[ SQL ] SHOW COLUMNS FROM `seo` [ RunTime:0.000962s ]
[ SQL ] SELECT * FROM `seo` WHERE `column_type` = '02' AND `page_type` = 'news' AND `info_id` = 4111 LIMIT 1 [ RunTime:0.000187s ]
[ SQL ] SELECT * FROM `news_belong_category` WHERE `news_id` = 4111 [ RunTime:0.001929s ]
[ SQL ] SELECT * FROM `news_belong_category` WHERE `news_id` = 7972 [ RunTime:0.001761s ]
[ SQL ] SELECT * FROM `news_belong_category` WHERE `news_id` = 7935 [ RunTime:0.002053s ]
[ SQL ] SELECT * FROM `news_belong_category` WHERE `news_id` = 7929 [ RunTime:0.001625s ]
[ SQL ] SELECT * FROM `news_belong_category` WHERE `news_id` = 7883 [ RunTime:0.001637s ]
[ SQL ] SELECT * FROM `news_belong_category` WHERE `news_id` = 7853 [ RunTime:0.001673s ]
[ SQL ] SELECT * FROM `news_belong_category` WHERE `news_id` = 7850 [ RunTime:0.001654s ]
[ SQL ] SELECT * FROM `news_belong_category` WHERE `news_id` = 7846 [ RunTime:0.001591s ]
[ SQL ] SELECT * FROM `news_belong_category` WHERE `news_id` = 7845 [ RunTime:0.001569s ]
[ SQL ] SELECT * FROM `news_belong_category` WHERE `news_id` = 7826 [ RunTime:0.001571s ]
[ SQL ] SELECT * FROM `user` WHERE `id` = 245 LIMIT 1 [ RunTime:0.000160s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `follow_user_id` = 348 LIMIT 1 [ RunTime:0.000276s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `user_id` = 348 LIMIT 1 [ RunTime:0.000136s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `follow_user_id` = 351 LIMIT 1 [ RunTime:0.000129s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `user_id` = 351 LIMIT 1 [ RunTime:0.000114s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `follow_user_id` = 466 LIMIT 1 [ RunTime:0.000113s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `user_id` = 466 LIMIT 1 [ RunTime:0.000109s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `follow_user_id` = 458 LIMIT 1 [ RunTime:0.000109s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `user_id` = 458 LIMIT 1 [ RunTime:0.000122s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `follow_user_id` = 209 LIMIT 1 [ RunTime:0.000116s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `user_id` = 209 LIMIT 1 [ RunTime:0.000108s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `follow_user_id` = 372 LIMIT 1 [ RunTime:0.000108s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `user_id` = 372 LIMIT 1 [ RunTime:0.000135s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `follow_user_id` = 521 LIMIT 1 [ RunTime:0.000210s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `user_id` = 521 LIMIT 1 [ RunTime:0.000124s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `follow_user_id` = 819 LIMIT 1 [ RunTime:0.000147s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `user_id` = 819 LIMIT 1 [ RunTime:0.000114s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `follow_user_id` = 385 LIMIT 1 [ RunTime:0.000109s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `user_id` = 385 LIMIT 1 [ RunTime:0.000114s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `follow_user_id` = 657 LIMIT 1 [ RunTime:0.000123s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `user_id` = 657 LIMIT 1 [ RunTime:0.000109s ]

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