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href="/Article-3839098.html">cod微波消解儀平行差距大怎么解決？</a></div> <p>COD微波消解儀平行差距大可能是由于多種因素導致的。以下是一些可能的原因及相應的解決建議：一、可能原因1、操作不規范：樣品處理不當，如取樣量不準確、液面差距等。比色管的方向和插入方式不正確，影響測量結果。對于顏色過深或濃度過高的樣品未進行適當稀釋或預處理。2、試劑質量問題：使用過期或保存不當的試劑。試劑加入順序或比例不正確，導致反應不全。3、消解過程控制不當：消解時間、溫度和酸堿度等條件未嚴格控制。消解過程中消解管蓋未擰緊，導致漏氣或濺出。4、儀器維護不足：儀器長時間未進行清...</p> </div> </li> <li> <div id="vxz9x3v" class="lyNyNew_time"><span>2024</span><p>9-24</p></div> <div id="btfx5df" class="lyNyNew_text"> <div id="t3tnfzz" class="lyNyNew_name"><a href="/Article-3818118.html">水質硫化物酸化吹氣儀——守護水源清澈的衛士</a></div> <p>在自然界的水循環中，水質的純凈是維持生態平衡的關鍵。然而，隨著工業化和城市化的快速發展，水體中的污染問題日益嚴重，其中硫化物的污染尤為突出。為了有效監測和控制水體中的硫化物含量，科學家們研發了一種名為水質硫化物酸化吹氣儀的設備。今天，我們就來了解一下這個守護水源清澈的衛士是如何工作的。酸化吹氣儀是一種專門用于測定水樣中硫化物含量的分析儀器。它通過將水樣與酸性試劑反應，使硫化物轉化為硫化氫氣體，然后利用載氣將生成的氣體帶入吸收液中進行定量分析。這種方法不僅操作簡便，而且靈敏度高...</p> </div> </li> </ul> </div> <div class="xzblpxh" id="fengye">共 347 條記錄，當前 1 / 44 頁首頁上一頁 <a href="/article-p2.html">下一頁</a> <a href="/article-p44.html">末頁</a> 跳轉到第<input style="width:20px" class="p_input" 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