The sample, after being purged by reversed extraction and purified byPVP-kieselguhr column, was enriched through Amberlite XAD-7 column.

  • 样品经过乙酸乙酯反萃取及PVP - 硅藻土层析柱后, 再径XAD - 7柱浓缩.

  • 互联网摘选 2025-01-18 16:55:28

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