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The hydrogen and oxygen stable isotopic composition and dissolved gas components of the hot spring (well) water in the southern area of Zhangjiakou are studied.
本文研究了张家口南部地区温泉（井）水的氢氧稳定同位素组成及溶解气体组分特征。
The honey samples were dissolved in water and acetone and then extracted with hexane - chloromethane, cleaned by C18 SPE cartridge, determined by gas chromatographic electronic capture detector.
蜂蜜样品用水溶解后，经正己烷-二氯甲烷提取，提取液经c18固相萃取小柱净化，采用气相色谱仪电子捕获检测器定量测定。
To analyse the dissolved gas in water, water and gas samplings should be collected.
水中溶解气体的分析，要经过采集水样或气样。
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