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The Care of Reversed-Phase Columns
 ÀÛ¼ºÀÚ : ÃæÀΰúÇÐ
Date : 2015-07-28 11:27  |  Hit : 637  
< The Care of Reversed-Phase Columns >

¿ª»ó HPLC Ä÷³Àº ÀûÀýÈ÷ »ç¿ëÇϱ⸸ ÇÑ´Ù¸é, samle preparationÀ̳ª, elution »óÅ¿¡ µû¶ó ÃÖ´ë õ¹ø
ÀÌ»óÀÇ ½Ã·áÁÖÀÔÀÌ °¡´ÉÇÕ´Ï´Ù. ´ÙÀ½Àº Vydac RP-HPLC Ä÷³¿¡ °üÇÑ ³»¿ëÀÌÁö¸¸, ´Ù¸¥ ´ëºÎºÐÀÇ RP-
HPLC Ä÷³¿¡ Àû¿ë½ÃÄѵµ ÁÁÀ» »çÇ×µéÀÔ´Ï´Ù.

* Column Protection *

Ä÷³ÀÇ ¼ö¸íÀº »ç¿ë Á¶°Ç¿¡ µû¶ó Â÷ÀÌ°¡ ÀÖÀ¸¹Ç·Î, ¿ë¸Å¿Í »ùÇÃÀÇ filtering°ú eluent filter¿Í guard columnÀ» »ç¿ëÇÏ¿© ¿¬Àå½Ãų ¼ö ÀÖ½À´Ï´Ù. solvent pump, mixing chamber·ÎºÎÅÍÀÇ ÀÜÇظ¦ Æ÷ȹÇϱâ À§ÇÏ¿©, Solvent delivery system°ú injector »çÀÌ¿¡ eluent filter¸¦ »ç¿ëÇÒ °ÍÀ» ±ÇÀåÇÕ´Ï´Ù. ¶ÇÇÑ ¸¸ÀÏ »ùÇÿ¡ ¿ëÇصÇÁö ¾Ê´Â ¼ººÐÀÌ µé¾îÀְųª, material¿¡ ÈíÂøµÇ´Â compound¸¦ Æ÷ÇÔÇÑ´Ù¸é, injector¿Í Ä÷³ »çÀÌ¿¡ guard columnÀ» »ç¿ëÇÒ °ÍÀ» ±ÇÀåÇÕ´Ï´Ù.

* Column Conditioning  *

¿ª»óÇ¥¸éÀÇ Æ¯¼º»ó, Ä÷³ÀÇ ºÐ¸®´ÉÀ̳ª ¼ö¸íÀº óÀ½ ¸î¹øÀÇ protein injectionµ¿¾È Á¶±Ý º¯ÇÒ ¼ö°¡ ÀÖ½À´Ï´Ù. Ä÷³ÀÌ Æ¯¼ºÀÌ ÀâÈú¶§±îÁö ¹Ýº¹ÀûÀ¸·Î proteinÀ» ÁÖÀÔÇϰųª, ȤÀº
ribonuclease¿Í °°Àº ´Ü¹éÁúÀ» 100ug ÁÖÀÔÇÏ°í, Acetonitrile/0.1% TFA gradient·Î Èê·ÁÁÜÀ¸·Î½á Ä÷³ÀÇ »óŸ¦ Á¶ÀýÇÒ ¼ö ÀÖ½À´Ï´Ù.

* Column Storage *

RP-HPLC Ä÷³Àº À¯±â¿ë¸Å³ª water¿¡ º¸°üÇÒ ¼ö ÀÖ½À´Ï´Ù. ¿À·§µ¿¾È º¸°üÇϱâ À§Çؼ­´Â ion pairing agent³ª buffer¸¦ Ä÷³¿¡¼­ ¾Ä¾î³»¾ßÇϸç, organic content°¡ Àû¾îµµ 50% µÇ¾î¾ßÇÕ´Ï´Ù.

* Chemical Stability *

RP-HPLC Ä÷³Àº ÀϹÝÀûÀÎ À¯±â¿ë¸ÅÀÎ Acetonitrile, Ethanol, Isopropanol,
Dichloromethane µî¿¡¼­ ¾ÈÁ¤ÇÕ´Ï´Ù. solvent¸¦ ±³Ã¼ÇÒ ¶§, ¼¯Àϼö ÀÖ´Â solvent¸¸À» Â÷·Ê·Î »ç¿ëÇÏ´Â °ÍÀÌ Áß¿äÇÕ´Ï´Ù. Silica-based RP-HPLC columnÀº pH 6.5-7¿¡¼­ ¾ÈÁ¤Çϸç, SDS(Sodium Dodecyl Sulfate)¿Í °°Àº ÀϹÝÀûÀÎ protein detergent¿¡µµ Çظ¦ÀÔÁö ¾Ê½À´Ï´Ù.

* Pressure and Temperature Limits *

RP-HPLC columnÀº ÀϹÝÀûÀ¸·Î 60¡É¿Í 5000psi(335bar) back-pressure¿¡¼­ ¾ÈÁ¤ÇÕ´Ï´Ù.
RP-HPLC columnÀÇ ÀüÇüÀûÀÎ back pressure´Â ´ÙÀ½°ú °°½À´Ï´Ù.

----------------------------------------------------------------
Column size(mm)         Flow Rate(mL/min)       Typical Back-pressure
                                                                  (with 50:50 ACN:Water)
----------------------------------------------------------------
 2.1 x 250                               0.20                     1000-1800 psi
4.6 x 250                                1.0                       1000-1800 psi
4.6 x 150                                1.0                       600-1200 psi
10 x 250                                 5.0                      1000-1800 psi
4.6 x 250                                1.0                       500-1000 psi
10 x 250                                 5.0                       500-1000 psi
22 x 250                                25.0                       500-1000 psi
----------------------------------------------------------------

 
   
 

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