Method for in-situ sampling, separating, enriching and quantitative measuring aldehyde matter content in waterbody utilizing measured material diffusion

利用被测物质扩散进行原位取样、分离、富集和定量测量水体中醛类物质含量的方法

Abstract

A method to sample in situ, separate, enrich and quantitatively measure aldehyde substance content in waters by diffusing of detected substance. Its steps are: (1) Puts some high-molecular compound being capable of occurring chemical reaction with aldehyde substance into device and uses a semi-permeable membrane being able to permeate aldehyde substance to cover it, forms enrich device for sampling and diffusing. (2) Sets device in waters containing aldehyde pollution or substance for 10min-240h. (3) Takes out device to measure aldehyde content in solution by visual spectrometry, high-efficient liquid chromatography or gas chromatography. It has merits of simple, economical, having selectivity, providing concentration and measurement in situ for aldehyde substance in waters, quantitative measurement and dynamics of combined detected substance relates to characteristics of semi-permeable membrane.
一种利用被测物质扩散进行原位取样、分离、富集和定量测量水体中醛类物质含量的方法,该方法包括以下步骤:1)取一定量能够与醛类物质发生化学反应的高分子化合物装入一定容积的容器内,用能够透过醛类物质的半透膜将容器封好,制成取样分离富集装置;2)将装置放入有醛类污染或含有醛类物质的水体中,放置时间为10min~240h;3)取出装置用紫外-可见光谱法或高效液相色谱法或气相色谱法测量容器内溶液中醛的含量。其优点:既简单又经济,具有选择性;可提供原位浓度、测量水体中醛类物质含量;定量测量与结合相摄取的被监测物质的动力学和半透膜的特性有关。

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    CN-102221517-AOctober 19, 2011中国船舶重工集团公司第七○二研究所生态清淤扩散测量装置
    CN-102221517-BJune 26, 2013中国船舶重工集团公司第七○二研究所生态清淤扩散测量装置