有二句话实在不会翻译了，请求各位帮忙了。？ 有二句话实在不会翻译了，请求各位帮忙了。 1，we have proposed a simple, rapid and versatile preconcentration technique, based on collecting trace analytes on a solvent-soluble filter and dissolving the filter and the analytes collected on it in a small volume of solvent 。 这一句不会断句，and太多了。 2，if the counter cation is excessively hydrophobic, not only the analyte but also the free reagent added to convert the analyte into a collectable form is retained on the filter, sometimes rendering the collection by filtration time consuming。 这一句not only之后就不知道说什么了。 谢谢大家。查看更多
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