** Vydac 259VHP polymer column Care **
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Date : 2015-07-28 16:59 | Hit : 1,535
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< Vydac 259VHP Polymer Reversed-Phase Columns >
Vydac 259VHP Polymer Reversed-Phase ColumnsÀº 300¡Ê poreÀÇ highly cross-linked polystylene-divinylbenzene copolymer beads¸¦ Æ÷ÇÔÇÏ°í ÀÖ´Ù. proprietary surface modificationÀÌ ºÐ¸®´ÉÀ» °ÈÇÑ´Ù. 259VHP´Â protein/peptide ºÐ¸®¸¦ À§ÇÏ¿© °í¾ÈµÇ¾úÁö¸¸, ÀúºÐÀÚÀÇ ºÐ¸®¿¡µµ »ç¿ëµÈ´Ù. 1N acidºÎÅÍ 1N base±îÁö »ó¿Â¿¡¼ ¾ÈÁ¤ÇÏ´Ù. ÀÌ Ä÷³Àº silica-based Reversed-Phase Column¿¡¼´Â ºÒ°¡´ÉÇÑ ³ÐÀº pH ¹üÀ§¸¦ Áö´Ñ´Ù. 259VHP´Â ´ëºÎºÐÀÇ À¯±â ¿ë¸Å¿Í À¶È°¡ °¡´ÉÇÏ´Ù.
* Shipping and first use *
259VHP columnÀº 50:50 ACN:Water·Î shippingµÈ´Ù. »ç¿ëÇϱâ Àü¿¡ ¿ì¸®´Â 10¹èÀÇ column volumeÀ¸·Î(259VHP5415ÀÇ °æ¿ì 25mL) weak mobile phase(solvent A)·Î rinseÇØ ÁÖ°í, 0¡100% B·Î blank gradient¸¦ °É¾îÁÙ °ÍÀ» ±ÇÀåÇÑ´Ù.
* Pressure Limit *
259VHP columnÀº 3000psi(200bar)±îÁö ¾ÈÁ¤ÇÏ´Ù. ¼ö¸íÀ» ´ÃÀ̱â À§Çؼ´Â 259VHP5415ÀÇ °æ¿ì(4.6 x 150mm) flow rate¸¦ 1.0mL/min ÀÌÇÏ·Î ÇØÁÖ¾î¾ß ÇÑ´Ù. ´Ù¸¥ Å©±âÀÇ Ä÷³¿¡ ´ëÇؼ´Â ÀûÀýÈ÷ Á¶Á¤ÇØ ÁØ´Ù.
* Chemical and Temperature Stability *
259VHP´Â pH0¡14, temp.0¡80¡É±îÁö ¾ÈÁ¤ÇÏ´Ù. ±×·¯³ª °»ê°ú °¿°±âÀÇ cleaningÀº °í¿Â¿¡¼ ÇÏ¸é ¾ÈµÈ´Ù.
* Column Cleaning and Regeneration *
Ä÷³ÀÌ ¿À¿°µÇ¾úÀ» °æ¿ì, 259VHP Ä÷³Àº ÀϹÝÀûÀÎ denaturantsÀÇ spot injectionÀ¸·Î cleaningÇÑ´Ù. ¸ðµç denaturant solutionÀº 0.5umº¸´Ù Å« ÀÔÀÚ¸¦ Á¦°ÅÇϱâ À§ÇØ »ç¿ëµÇ±â Á÷Àü¿¡ membrane filter¸¦ ÇØÁÖ¾î¾ß ÇÑ´Ù. ÀÛÀº ºÎÇÇÀÇ °æ¿ì syringe filter°¡ Æí¸®ÇÏ´Ù. °¿°±âÀÇ °æ¿ì(1N NaOH), polyimide injector rotor°¡ base-resistant mator·Î ±³Ã¼ÇÏ°í, ÀÔÀÚ Á¦°Å¸¦ À§ÇØ membrane filter¸¦ »ç¿ëÇÑ´Ù. ¸ðµç °úÁ¤Àº º°µµ ¾ð±ÞÀÌ ¾ø´ÂÇÑ ½Ç¿Â¿¡¼ ÁøÇàµÇ¾î¾ß ÇÑ´Ù. Ä÷³À» È帧ÀÇ ¿ª¹æÇâÀ¸·Î ¿¬°áÇÑ´Ù. HPLC systemÀº 0¡100% B¸¦ 1.0mL/min(4.6mmID) flow rate·Î A¿Í 10 ºÐ°£ gradient·Î Èê·ÁÁØ´Ù. (A: 0.1% TFA (v/v) in 10:90, ACN : Water B: 0.1% TFA (v/v) in 90:10, ACN : Water) 280nm¿¡¼ absorbence¸¦ Áö¼ÓÀûÀ¸·Î ÃøÁ¤ÇÑ´Ù. °¢°¢ÀÇ °úÁ¤¿¡ ´ëÇØ, solvent A¿¡ denaturant¸¦ ÁÖÀÔÇÏ°í, gradient ÇÑ´Ù. baselineÀÌ ÀâÈú ¶§ °¡Áö ÀÌ °úÁ¤À» ¹Ýº¹ÇÑ´Ù.
¡ß contaminant¿¡ µû¶ó ¾Æ·¡ÀÇ denaturant°¡ È¿°úÀûÀÌ´Ù. (injection vol.Àº 4.6mmID ±âÁØ)
1) 1% or 2% SDS in 10:90 ACN:Water. Inject 500uL
2) 50:50, IPA:6M guanidine HCl. Inject 200uL at 0.2mL/min (ÀÌ ¿ë¾×Àº ¸Å¿ì Á¡¼ºÀÌ °ÇϹǷΠlow flow rate·Î ÇؾßÇÑ´Ù. ¶ÇÇÑ ÀÔÀÚ°¡ »ý°Ü Ä÷³ÀÌ ¸·È÷´Â °ÍÀ» ¹æÁöÇϱâ À§ÇØ, IPAÃß°¡ ÀüÈÄ¿¡ guanidine HCl ¿ë¾×À» µÎ¼¼¹ø °¡·® filterÇØ ÁÖ´Â °ÍÀÌ Áß¿äÇÏ´Ù.)
3) Any of the following at low flow (0.2mL/min) ¤ý 100% TFA. inject 200uL ¤ý Glacial acetic acid. inject 1mL ¤ý Formic acid. inject 1mL ¤ý 1M phosphoric acid. inject 1mL step2¸¦ ¹Ýº¹ÇÑ´Ù. step1 through step3 are strongly solubilizing for proteins and lipids.
4) 1N NaOH. inject 2¡3mL at 0.2mL/min ( Base hydrolysis of protein and peptides breaks them into smaller units with greater solubility. )
280nm¿¡¼ Ä÷³ÀÌ ±ú²ýÇÔÀ» ³ªÅ¸³»¸é, normal gradient condition¿¡¼ Ä÷³ ¼öÇàÀ» Å×½ºÆ®ÇÑ´Ù. ´Ù¸¥ ¹æ¹ýµéÀÌ ÀÖ´Ù¸é,
¡ß normal mobile phase buffer¸¦ »ç¿ëÇϸé¼, Ä÷³ ¿Âµµ´Â 60¡É±îÁö ³ô¿©ÁÖ°í, 0¡100% ACN gradient¸¦ ¸î ¹ø Èê·ÁÁØ´Ù.
¡ß step1¡4¸¦ mobile phase¿¡ ACN´ë½Å¿¡ IPA »ç¿ëÇÏ¸é¼ ¹Ýº¹ÇÑ´Ù. ÀÌ mobile phaseÀÇ ´õ ³ôÀº Á¡¼ºÀ» °í·ÁÇÏ¿© 0.5mL/min °¡·®ÀÇ ³·Àº flow rate¸¦ »ç¿ëÇÑ´Ù.
¡ß ¸¸ÀÏ ÀÌ·¯ÇÑ stepµéÀÌ ¸ðµç lipid³ª ºñ±Ø¼º ¿À¿°¹°À» Á¦°ÅÇÏÁö ¸øÇÑ´Ù¸é, ChloroformÀ̳ª DichloromethaneÀ¸·Î rinseÇÏ¿© cleaningÇÒ ¼ö ÀÖ´Ù. silica based protein/peptide ¿ª»ó Ä÷³À̹ǷÎ, water·Î ºÎÅÍÀÇ °úÁ¤¿¡ Áß°£ÀûÀÎ °úÁ¤ À¸·Î¼ IPA³ª Acetone°ú °°Àº »óÈ£ Àß ¼¯ÀÌ´Â intermediate·Î rinseÇØ ÁÖ¾î¾ß ÇÑ´Ù.
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