Isotopic composition analysis of dissolved mercury in seawater with purge & trap preconcentration an

来源 :The Second Xiamen Symposium on Marine Environmental Sciences | 被引量 : 0次 | 上传用户:xdt1973
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
This study aimed to solve the common problems in Hg isotope analysis of water samples at lowconcentration.The isotope composition of dissolved Hg in seawater is reported for the first time.Amodified device for introducing Hg into a multi-collector inductively coupled plasma massspectrometer and a preconcentration method for the preconcentration of dissolved Hg weredeveloped to enhance the sensitivity of the isotopic composition analysis method.
其他文献
Four cruises were carried out in the Sanggou Bay in April,July and October of 2013,and January of2014 to investigate distributions,air-sea fluxes,sediment-water fluxes and production of dissolvedCH4 i
会议
Sediments are not static but subjected to diagenesis processes and release chemicals to the overlyingwater.Therefore,they should be regarded as a third endmember in estuarine mixing processes.Inorder
会议
Anaerobic respiration in estuarine sediments is considered to be important due to the production ofalkalinity relieving ocean acidification.Anaerobic respiration decomposes organic matter (OM) bythe s
会议
The high sedimentation rate but low primary production in surface ocean raised a question whetherparticles from local upper water column could support high deposition in the Aleutian Basin.Here,we fir
会议
浊水溪流域位于台湾岛西部平原,属亚热带季风气候区.因台湾处于板块交界带地形陡峭且地体构造活动频繁,每年受季风豪雨及台风事件侵袭影响,使浊水溪每年平均输沙量达约54 百万公吨.尽管如此,因丰、枯水季沉积物供应率差异大且不稳定、此外浊水溪出海口属于中潮 (平均潮差 2.7m)的海岸环境,使细粒沉积物在出海口处不易保存下来.这些条件使浊水溪出海口虽在地形上具有波控型三角洲状的外形,但却无法在沉积物纪录中
会议
It is now well established that changes in rates of silicate weathering have the potential to regulatelevels of atmospheric carbon dioxide,the principal greenhouse gas.To better constrain the linksbet
会议
This study attempts to quantify the influence of two mesoscale cyclonic eddies on the air-sea CO2fluxes based on the data collected during a month-long cruise conducted in Aug-Sep,2007 to thewestern S
会议
Phosphorus (P) is often a key limiting nutrient in freshwater systems,and excessive P can result inalgal blooms,with flow-on effects to aquatic food webs.Desorption and dissolution often controls them
会议
Major and trace elemental geochemistry of sediments and sedimentary rocks provide informationcentral to interpreting sedimentary history,including chemical weathering conditions,nature andcomposition
会议
The availability of nutrients,such as nitrite and phosphate,are significant factors regulating theprimary productivity in the aqueous environment.The nutrients exist in the estuarine and coastalwaters
会议