本研究建立了一种改进的校正方法，利用被动空气采样器评估在中国南方珠江三角洲东部的聚氯化萘的分布。

The present study established an improved correction method for using a PAS to assess the distribution of PCNs in the eastern Pearl River Delta (PRD), South China.

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用二氯亚砜将萘普生酰氯化，在氮气保护下与脱镁叶绿酸交联，以硅胶柱层析分离产物。

Naproxin was treated by thionyl chloride, then conjugated to Phaeophorbide under protection of N2. The compound was purified by silica gel column.

youdao

用二氯亚砜将萘普生酰氯化，在氮气保护下与脱镁叶绿酸交联，以硅胶柱层析分离产物。

Naproxin was treated by thionyl chloride, then conjugated to Phaeophorbide under protection of N2. The compound was purified by silica gel column.

youdao