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0.5  g  each  of  the legume  samples  powder  were  extracted  under  mechanical  agitation  with  20 ml  0.5  M HCl  for  2  h  at  room  temperature  (Graf  & Dintzis,  1982).  The  extract  was  centrifuged  (700  g,  10 min)  and  the  supematant  decanted,  frozen  overnight, centrifuged  and  filtered  through  MF-Millipore  (0.22 pm).  The  inositol  phosphates  were  separated  from  the filtrate  and  concentrated  by  the  ion-exchange  procedure  of  Sandberg  and  Ahderinne  (1986)  with  some modifications.  The  filtrate  was  evaporated  to  dryness under  vacuum  (35¡æ,  dissolved  in  15 ml,  25 mM HCI, and  passed  through  a   strong  anion-exchange (SAX)  column  that  was  connected  to  a  vacuum  manifold  (Visiprep; Supelco,  Bellefonte,  PA,  USA). The  loaded  SAX  column  was  washed  successively  with  10  and  5 ml  of  25 mM  HCI.  The  resin-bound  inositol  polyphosphates (IP3,  IP4,  IP5  and  IP6)  were  then  eluted  with  ten  1 ml portions  of  2  M HCl.  The  eluent  was  evaporated  to dryness  and  diluted  with  0.5 ml  of  mobile  phase.
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4¡¢ºóÃæËµÓÃ25mMÑÎËáÁ¬ÐøÏ´ÍÑ£¬ÎÒÏëÎÊÏÂΪʲôд³ÉThe  loaded  SAX  column  was  washed  successively  with 10  and  5 ml  of  25 mM  HCI£¬ÊÇÏÈÄÃ10mlÏ´ÔÙÄÃ5mlÏ´Âð£¿ÎªÊ²Ã´ÒªÕâô×ö£¬Ï´µÄʱºòÊÇ10mlÈ«²¿¼Ó½øÈ¥Ö®ºóÔÙ½«5mlÈ«²¿¼Ó½øÈ¥Âð£¿
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