UV-1500PC UV-visible spectrophotometric determination of radioactive elements in water - Master's thesis - Dissertation

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UV-1500PC UV-Vis Spectrophotometric Determination of Radioactive Elements in Water

Key words: UV-visible spectrophotometry; radioactive element 钍; mei analysis ; UV-1500PC

/></p>Related background: In the "Nuclear and Radiation Safety Supervision and Management 2013 Project Plan" issued by the Ministry of Environmental Protection this year, 钍 is one of the radioactive elements to be inspected, and the radiation environmental monitoring stations of various provinces, cities and counties may Environmental protection monitoring stations need to detect the strontium content of the local state control water samples. Earthworms are a kind of natural radioactive elements. Marine algae and fish all have accumulation effects, which affect the bone development of mammals. Once they are eaten by these aquatic animals and plants, and the content of strontium in drinking water exceeds the standard, it is very harmful to human body. It has chemical toxicity. Radiation damage, radiation radiation will affect people's blood phase changes, causing cancer and genetic effects. The pollution from strontium is mainly from the wastewater containing antimony and antimony and rare earth. Target customers: radiation environmental monitoring station, environmental protection monitoring station, industrial wastewater treatment plant, rare earth smelting plant. Brief introduction of detection method: After adding magnesium carrier and sodium hydroxide to the water sample, strontium and magnesium are coprecipitated as hydroxide. The precipitate is dissolved by concentrated nitric acid, and the solution is selectively adsorbed by a resin extraction chromatography column, and the oxalic acid-hydrochloric acid solution is desorbed. In the oxalic acid-hydrochloric acid medium, ruthenium and arsenazo III form a red complex, and the spectrophotometer is 660 nm. The absorbance is measured at the place. (30mm optical path) Keywords: UV-visible spectrophotometry; radioactive element 钍; beauty analysis ; UV-1500PC</p> </div> </div> <div class="tech-detail- Share"> <!-- Baidu Button BEGIN --> <div class="bdsharebuttonbox"> <a href="#" class="bds_qzone" data-cmd="qzone" title="Share to QQ space">< /a> <a href="#" class="bds_tsina" data-cmd="tsina" title="Share to Sina Weibo"></a> <a href="#" class="bds_weixin" data- Cmd="weixin" title="Share to WeChat"></a> <span>Share to:</span> </div> <script>window._bd_share_config = { "common": { "bdSnsKey": {} , "bdText": "", "bdMini": "1", "bdMiniList": false, "bdPic": "", "bdStyle": "2", "bdSize": "16" }, "share": {} }; with (document) 0[(getElementsByTagName(

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