chemical purity

 

    kromasil silica´Â impurities°¡ ÀûÀº °í¼øµµ silicaÀÌ´Ù.

    ½Ç¸®Ä« ¸ÅÆ®¸¯½ºÀÇ È­ÇÐÀû ¼øµµ´Â ¾Æ¹Î, ¿°±â¼º ÆéŸÀÌµå ¹× Å³·¹ÀÌÆ® È­ÇÕ¹°µî ±î´Ù·Î¿î Á¤Á¦¿¡
    ¿µÇâÀ» ¹ÌÄ£´Ù.

    Kromasil silica´Â ´Ù¸¥ silicaº¸´Ù metal impuritiesÇÔ·®ÀÌ ÈξÀ Àû´Ù.

      È­ÇÐÀû ¼øµµ´Â °á°ú¿¡ Å« ¿µÇâÀ» ¹ÌÄ£´Ù.


    Chromatogram of a ahelating compound 2,2'-bipyridyl(Rt=5.44) and 4,4'-bipyridyl(Rt=5.44)
    and 4,4'-bipyridyl(Rt=3.93) for Kromasil and another commercial material. The test is
    performed in metal-free system and column(Peek).


    conditions :
    Samples and loadings: 2,2'-bipyridyl(2 µg) and 4,4'-bipyridyl(0.5 µg)
    Eluent : MeOH.H2 : 60/40 · Column size : 250 x 4.6 mm · Flow : 1 ml/min.
    Wavelength : 254 nm