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The sample, after being purged by reversed extraction and purified byPVP - kieselguhr column, was enriched through Amberlite XAD - 7 column.樣品經(jīng)過(guò)乙酸乙酯反萃取及PVP - 硅藻土層析柱后, 再?gòu)絏AD - 7柱濃縮....

kieselguhr的音標(biāo)：kieselguhr的英式發(fā)音音標(biāo)為：['ki:z?lg??]kieselguhr的美式發(fā)音音標(biāo)為：['kiz?l?g?r]...

n.硅藻土...