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yang0071
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resaruzin (Almar Blue) indicator dye ÊÇÕâ¸öÂ𣿠ָʾϸ°û»îÁ¦µÄָʾ¼Á£¬ trypan blueÖÐÎÄ·³É¡°Ì¨ÅÎÀ¶¡± ÄãÕâ¸ö¡°°¢ÂêÀÀ¶¡± [ Last edited by yang0071 on 2010-1-27 at 20:19 ] |
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Resazurin (7-Hydroxy-3H-phenoxazin-3-one 10-oxide) is a blue dye used mainly as an oxidation-reduction indicator in the resazurin test for bacteria. It was first used to quantify bacterial content in milk by Pesch and Simmert in 1929.[1] It is also used as an indicator for cell viability in mammalian cell cultures [2]. Blue colored Resazurin is reduced to pink colored, fluorescent compound Resorufin in the presence of live cells. Usually it is available commercial as the sodium salt. It is available under the trade name Alamar Blue. Resazurin solution is the substance with the high value of Kreft's dichromaticity index.[3] This means that it has the large change in color hue, when the thickness of concentration of observed sample increases or decreases. ËùÒÔ£¬ÒëΪ¡°ÈÐÌìÇࡱ±Ę̀ÅÎÀ¶ÕýÈ· Name: Resazurin; or Resazoin (ÈÐÌìÇà; Ê÷Ö¬ÌìÇà) Chemical Name: 7-Hydroxy-3H-phenoxazin-3-on-10-oxid (7-ôÇ»ù·Ô‡fàºÍª) Chemical Formula: C12H7NO4 CAS Number: 550-82-3; 62758-13-8 (Sodium Salt) Molar Mass: 229.18 g/mol Property: 1) 7-ôÇ»ù·Ô‡fàºÍªÓùýÑõ»¯Çâ½øÐÐÑõ»¯µÃµ½µÄN-Ñõ»¯Îï¡£ÉîºìÉ«ÓÐÂÌÉ«¹âÔóµÄÀâÖùÐξ§Ìå¡£ÈÜÓÚ¼îµÃµ½À¶É«ÈÜÒº£¬ÈÜÓÚ´¼ÏÔʾשºìÉ«µÄÓ«¹â£¬²»ÈÜÓÚË®ºÍÃÑ¡£ËüµÄ ÒÒõ£»¯ÑÜÉúÎïÈÛµã222¡æ£¬¼×ÃÑÈÛµã252¡æ£¨·Ö½â£©¡£»¹ÔºóµÃµ½3,7-¶þôÇ»ù·Ô‡fຣ¬ÐγɵÄÈýÒÒõ£»ùÑÜÉúÎïÈÛµã216¡æ¡£ÓÃ×÷Ëá¼îָʾ¼Á£¬PHÖµ 3.8(³ÈÉ«)¡«6.5(Éî×ÏÉ«)¡£Ê³Æ·Ñо¿ÖÐÓÃ×÷²âÊÔ»¹Ôø£¬¼ì¶¨´ÎÁòËáÑμ°¼ì²éÅ£ÄÌÖÐϸ¾úʱµÄ»¹Ôָʾ¼Á¡£ 2)×÷Ϊϸ°ûȾɫ¼ÁÖ®Ò»µÄ Ó«¹âȾÁÏÈÐÌìÇà»òÊ÷Ö¬ÌìÇࣨ7-ôÇ»ù·Ô‡fàºÍª£»resazurin£»resazoin£©£¬ÓÖ³ÆAlamaBlue£¬ÊÇÒ»ÖÖÑõ»¯»¹Ôָʾ¼Á£¬¼´ÔÚÑõ»¯×´Ì¬ Ï£¬³ÊÏÖ×ÏÀ¶É«£¬¶øÔÚ»¹Ô״̬Ï£¬³ÊÏÖ·Ûºì»òºìÉ«¡£ÔÚϸ°ûÄÚ¶àÖÖ»¹Ôø»ò»¯Ñ§»¹Ô×÷ÓÃÏ£¬È¾ÁÏÓÉ·ÇÓ«¹âÐÔת±äΪ¸ß¶Èºìɫӫ¹âµÄÊÔ±Á飨3,7-¶þôÇ»ù·Ô‡f ຣ»resorufin£©£¬Ëù²úÉúÓ«¹âµÄÎüÊÕ·åÊÇ530£560nm£¬¶øÉ¢Éä·åÊÇ590nm¡£ [ Last edited by ÀîʱÕä on 2010-1-28 at 11:45 ] |
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