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class="lyNyNew_time"><span>2024</span><p>7-18</p></div> <div id="bd8lmiie" class="lyNyNew_text"> <div id="bd8lmiie" class="lyNyNew_name"><a href="/Article-3754505.html">煙氣黑度圖是環(huán)境監測的重要工具</a></div> <p>煙氣黑度圖是一種用于監測和評估大氣污染狀況的重要工具。它通過(guò)對煙氣中顆粒物濃度的可視化呈現，幫助環(huán)境保護部門(mén)、工業(yè)企業(yè)以及科研機構了解和控制大氣污染問(wèn)題。一、原理煙氣黑度圖的制作基于光吸收原理。當光線(xiàn)通過(guò)含有顆粒物的煙氣時(shí)，部分光線(xiàn)會(huì )被顆粒物吸收或散射，導致透過(guò)煙氣的光線(xiàn)強度減弱。這種減弱程度與煙氣中顆粒物的濃度直接相關(guān)。具體步驟如下：采樣：使用專(zhuān)門(mén)的采樣設備在排放源處采集一定體積的煙氣樣品。濾膜過(guò)濾：將采集到的煙氣通過(guò)濾膜，使顆粒物沉積在濾膜上。濾膜干燥和稱(chēng)重：將沉積有顆粒...</p> </div> </li> <li> <div id="bd8lmiie" class="lyNyNew_time"><span>2024</span><p>6-21</p></div> <div id="bd8lmiie" class="lyNyNew_text"> <div id="bd8lmiie" class="lyNyNew_name"><a href="/Article-3728854.html">土壤有機碳加熱器對土壤碳循環(huán)研究的意義</a></div> <p>土壤有機碳加熱器是一種用于加熱土壤樣本，模擬氣候變化對土壤有機碳分解影響的實(shí)驗設備。在土壤碳循環(huán)的研究中，它扮演著(zhù)至關(guān)重要的角色。以下是該加熱器對土壤碳循環(huán)研究的意義。1、土壤碳循環(huán)的重要性土壤碳循環(huán)是全球碳循環(huán)的重要組成部分，對氣候系統、生態(tài)系統功能和農業(yè)生產(chǎn)具有深遠的影響。土壤有機碳的含量和轉化過(guò)程直接影響大氣中二氧化碳的濃度，從而對全球氣候變化產(chǎn)生影響。因此，深入理解土壤碳循環(huán)機制對于預測氣候變化趨勢和制定相應對策至關(guān)重要。2、作用通過(guò)模擬升高的溫度，幫助科學(xué)家們了解全...</p> </div> </li> <li> <div id="bd8lmiie" class="lyNyNew_time"><span>2024</span><p>5-22</p></div> <div id="bd8lmiie" class="lyNyNew_text"> <div id="bd8lmiie" class="lyNyNew_name"><a href="/Article-3698538.html">土壤有機碳恒溫加熱器的工作過(guò)程是怎樣的？</a></div> <p>土壤有機碳恒溫加熱器是一種用于土壤科學(xué)研究的儀器，主要用于測定土壤中有機碳的含量。其工作過(guò)程主要包括以下幾個(gè)步驟：1、準備階段-樣品準備：首先，需要將采集的土壤樣品進(jìn)行風(fēng)干、研磨和篩分處理，得到均勻的土壤樣品。-儀器預熱：接通電源，預熱儀器至恒定溫度，通常是180°C至200°C之間。2、加熱階段-樣品稱(chēng)量：將適量的土壤樣品稱(chēng)量并放入加熱器的石墨消解管中。-添加試劑：向消解管中加入適量的濃硝酸和硫酸混合溶液，以破壞土壤中的有機物，將有機碳轉化為無(wú)機碳。-消解過(guò)程：將裝有樣品和...</p> </div> </li> <li> <div id="bd8lmiie" class="lyNyNew_time"><span>2024</span><p>4-17</p></div> <div id="bd8lmiie" class="lyNyNew_text"> <div id="bd8lmiie" class="lyNyNew_name"><a href="/Article-3666208.html">水質(zhì)硫化物酸化吹氣儀是水環(huán)境監測的關(guān)鍵裝備</a></div> <p>水質(zhì)硫化物是水環(huán)境中的一種重要污染物，其濃度高低直接關(guān)系到水體的環(huán)境質(zhì)量和生態(tài)安全。為了及時(shí)、準確地監測水中硫化物含量，水質(zhì)硫化物酸化吹氣儀應運而生。一、原理：水質(zhì)硫化物酸化吹氣儀主要原理是利用酸化反應將水樣中的硫化物轉化為硫化氫氣體，然后通過(guò)吹氣方式將氣體抽出，然后通過(guò)濃度檢測裝置測定硫化氫氣體的含量。該儀器采用高效的化學(xué)反應和氣體分離技術(shù)，能夠實(shí)現對硫化物的快速、準確檢測。二、功能：1.快速檢測：能夠在短時(shí)間內完成對水樣中硫化物含量的檢測，實(shí)現快速響應和數據獲取。2.高精...</p> </div> </li> <li> <div id="bd8lmiie" class="lyNyNew_time"><span>2024</span><p>3-19</p></div> <div id="bd8lmiie" class="lyNyNew_text"> <div id="bd8lmiie" class="lyNyNew_name"><a href="/Article-3638916.html">COD加熱器可以提供穩定的加熱溫度</a></div> <p>COD加熱器是一種用于化學(xué)需氧量(COD)分析的設備，具有精準、可靠的COD測定功能，通過(guò)加熱樣品來(lái)促進(jìn)化學(xué)反應，從而準確測定水樣中的COD含量。在環(huán)境監測、水處理等領(lǐng)域中，起著(zhù)至關(guān)重要的作用。一、工作原理主要工作原理是通過(guò)加熱水樣使其中的化學(xué)需氧物質(zhì)氧化分解，然后根據氧化反應消耗的化學(xué)試劑的量來(lái)計算出水樣中的COD含量。通常，COD加熱器會(huì )將水樣與氧化劑(如硫酸鉀鈉)混合加熱，在一定條件下促使有機物氧化，產(chǎn)生化學(xué)反應，然后通過(guò)測量殘余氧化劑的含量來(lái)計算COD值。二、結構特點(diǎn)...</p> </div> </li> <li> <div id="bd8lmiie" class="lyNyNew_time"><span>2024</span><p>3-1</p></div> <div id="bd8lmiie" class="lyNyNew_text"> <div id="bd8lmiie" class="lyNyNew_name"><a href="/Article-3622494.html">總氯是什么</a></div> <p>總氯（TotalChlorine）是指水樣中所有氯的總量的測量值。它包括了游離氯和結合氯兩部分。在水質(zhì)監測和水處理過(guò)程中，總氯是一個(gè)重要的指標，用于評估水體中氯的含量以及水的消毒程度?？偮鹊暮靠梢苑从乘新然锏目偭?，包括由消毒劑添加產(chǎn)生的氯化物。具體來(lái)說(shuō)，總氯包括水中天然存在的氯化物和為了消毒而添加的消毒劑中的氯。在水處理過(guò)程中，為了消滅細菌和病原體，常常會(huì )添加消毒劑，如氯氣、次氯酸鈉等。這些消毒劑會(huì )與水中的有機物和微生物反應生成氯化物。因此，總氯的含量可以反映水中氯化物...</p> </div> </li> <li> <div id="bd8lmiie" class="lyNyNew_time"><span>2024</span><p>3-1</p></div> <div id="bd8lmiie" class="lyNyNew_text"> <div id="bd8lmiie" class="lyNyNew_name"><a href="/Article-3622492.html">PH是什么</a></div> 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