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【通告】高手指點(diǎn):乙二胺調(diào)節(jié)pH值時(shí),流動(dòng)相的顏色變了,這是為什么???
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Sodium perchlorate buffer 0.1 M was prepared in deionized distilled water. The mobile phase consisted of buffer:ethanol:diethylamine (70:30:0.5% v/v) with a 35.24 mM concentration of β-CD. The final pH of the mobile phase was adjusted to 6.4。 配好緩沖溶液并與乙醇混合以后,再加乙二胺調(diào)節(jié)pH時(shí),只要乙二胺稍過(guò)量流動(dòng)相的顏色就會(huì)變成黃色,這個(gè)怎么回事,高手們解釋一下 |
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