** General guide to Vydac Column Care and Use **
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Date : 2015-07-28 16:58 | Hit : 1,244
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< General Guide to Vydac Column Care and Use >
* Connection Protection *
Ä÷³ÀÇ »ç¿ë±â°£À» ¿¬Àå½ÃÅ°±â À§ÇÏ¿© solvent delivery system°ú injector »çÀÌ¿¡ eluent filter¸¦ »ç¿ëÇÒ °ÍÀ» ±ÇÀåÇÑ´Ù. (Vydac C/N, EF-4) ¸¸ÀÏ »ùÇÃÀÌ Ä÷³À» ¸·È÷°Ô ÇÒ ¼öµµ ÀÖ´Â insoluble or strongly adsorded materialÀ̶ó¸é, Vydac High performance guard columnÀ» »ç¿ëÇÏ±æ ±ÇÀåÇÑ´Ù.
* Pressure and Temperature Limits *
Vydac silica-based HPLC columnÀº 0¡60¡É¿¡¼ ¾ÈÁ¤Çϸç, 5000psi(335bar)±îÁö ¾ÈÁ¤ÇÏ´Ù. HPLC systemÀº ÃÖ´ë 5000psi(335bar)·Î »ç¿ë °¡´ÉÇÏ´Ù. Vydac 259VHP polymer Revered-Phase columnÀº 0¡80¡É±îÁö °ßµð³ª, Á¦ÇÑ ¾Ð·ÂÀº 3000psi(200bar)ÀÌ´Ù.
Vydac silica-based HPLC columnÀÇ back-pressure´Â º¸Åë ¾Æ·¡¿Í °°´Ù. ------------------------------------------------------------------- column size particle size flow rate back-pressure range ------------------------------------------------------------------- 2.1 x 250mm 5um 0.2mL/min 1000-2000psi 4.6 x 250mm 5um 1.0mL/min 1000-2000psi 4.6 x 150mm 5um 1.0mL/min 600-1400psi 10 x 250mm 5um 5.0mL/min 1000-2000psi 4.6 x 250mm 10um 1.0mL/min 500-1200psi 1.0 x 250mm 10um 5.0mL/min 500-1200psi 22 x 250mm 10um 25mL/min 500-1200psi --------------------------------------------------------------------
* If you have a problem with a Vydac column *
Vydac HPLC columnÀº °ÇÏ°Ô ÈíÂøµÈ »ùÇà ¼ººÐÀ¸·Î ¿À¿°µÇ¾î back pressure¸¦ ¹ß»ý½ÃÅ°°Å³ª, resolutionÀÌ °¨¼ÒµÇ´Â °æ¿ì°¡ ÀÖ´Ù.
¡ß back-pressure°¡ ³ô´Ù¸é, injector¿¡¼ Ä÷³À» ¶¼¾î³½ ÈÄ back pressure°¡ Ä÷³ ¶§¹®ÀÎÁö, HPLC system ¶§¹®ÀÎÁö º¸±â À§ÇÏ¿© pump¸¦ Èê·Á º»´Ù.
¡ß Ä÷³ÀÇ back pressure°¡ ³ôÀº °ÍÀ̶ó¸é, inlet frit¿¡¼ ¿À¿°¹°ÀÌ ºüÁ® ³ª¿Àµµ·Ï Ä÷³À» µÚÁý¾î¼ ¼¼Ã´ÇØ ÁØ´Ù. ¿ª¼¼Ã´Àº 0.5mL/min(4.6mmID) flow rate·Î ½ÃÀÛÇÏ¿© 10¡15ºÐ °£ Èê·ÁÁÖ°í, 1.5¡2.0mL/minÀ¸·Î flow¸¦ Áõ°¡½ÃŲ´Ù. (4.6mmID column : 1.0¡1.5mL/min for polymer column)
¡ß Ä÷³ 10-20¹è volumeÀ¸·Î strong eluentÇØÁְųª, (Reversed-phase columnÀº high organic solvent, ionic exchange columnÀº high salt·Î) ¿À¿°¹°ÀÌ °ÇÏ°Ô ÈíÂøµÇ´Â °ÍÀ» ¸·±âÀ§ÇØ »ùÇà ÁÖÀÔ ¾øÀÌ 2-3 "blank" gradient¸¦ ÀϹÝÀûÀÎ È帧À¸·Î °É¾îÁØ´Ù.
- ¸¸ÀÏ À§¿Í °°Àº ¹æ¹ýµéÀÌ ¼Ò¿ë ¾ø´Ù¸é, ÄÓ·³ÀÇ Á¾·ùº°·Î Á¦½ÃµÈ ¹æ¹ýµéÀ» ½áº¸±æ ¹Ù¶õ´Ù.
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