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gymaggie

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[交流] 【求助】含Mn2+的磷酸盐缓冲溶液怎么配

phosphate buffered saline solution (PBS, 10 mm, pH 7.4) augmented with CaCl2 (1.0 mm) and MnCl2 (1.0 mm)

这种PBS怎么配啊,我先配好了7.4的PBS,然后加MnCl2的时候就会产生沉淀。
只有酸性到6左右,沉淀才消失。pH为8的时候也是沉淀。

有配过的吗?教教我呗,苦恼死了。
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