Arrive air to collect pollution water sample.

到户外采集污染水样本.

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Collect water sample from the site where transect line runs into the sea.

在样条伸展入海的位置取海水样本.

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Add 5 ml concentrated sulphuric acid to 100 ml water sample and shake well.

把大约5毫升的浓硫酸加进100亳升的水样本中,混匀.

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This invention provides a high - selective and high sensitivity test for mercury cation in water sample.

提供了一种高选择性高灵敏度测试水样中汞离子的方法.

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It has been applied satisfactorily to the determination of trace nitrobenzene in environmental water sample.

用于环境水样中硝基苯的测定,结果满意.

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