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  • 2025
    分液漏斗振蕩器在食品安全檢測行業中的應用
    分液漏斗振蕩器在食品安全檢測行業中的應用

    分液漏斗振蕩器在食品安全檢測中也有廣泛應用,如大米中殺蟲環殘留含量的測定、食用氫化油、人造奶油衛生標準的分析方法、水果蔬菜中苯甲酸的測定等實驗1、分液漏斗垂直多用振蕩器在食用氫化油、人造奶油衛生標準的分析方法;規定了食用氫化油、人造奶油衛生標準的分析方法。其中在測試人造奶油中鎳和銅含量的試樣處理實驗步驟中,人造奶油試樣加入0.5mol/L...

  • 2025
    水浴冷凝回流提取儀的提取效果比較

    水浴冷凝回流提取儀是一種常用于實驗室中的提取設備,廣泛應用于藥物、植物、食品等成分的提取過程中。其提取原理是通過回流加熱溶劑,使其蒸發后通過冷凝器冷卻再返回反應瓶,與樣品反復接觸,從而提高溶劑的提取效率。以下是水浴冷凝回流提取儀的提取效果比較,主要從不同提取方法和參數對提取效果的影響進行分析。1.提取效率比較水浴冷凝回流提取法的提取效率通常較高,特別是在以下幾種情況下:熱敏感性成分提取:與傳統的靜態浸提法相比,回流提取法能夠持續加熱并不斷更換溶劑接觸樣品,適合提取那些不耐高溫...

  • 2025
    HH-4 數顯電熱恒溫水浴鍋參數知多少

    HH-4數顯電熱恒溫水浴鍋參數知多少?讓我們一分鐘了解HH-4數顯恒溫水浴鍋。HH-4數顯恒溫水浴鍋產品說明:HH-4數顯恒溫水浴鍋又稱智能、實驗室、電子恒溫水浴鍋、電熱恒溫水浴鍋、智能控溫水浴鍋,是輔助恒溫加熱實驗儀器。HH-4適用于作蒸發及恒溫加熱之用(用于干燥、濃縮、蒸餾、浸漬藥品、溫漬化學藥品和生物制品)和其它溫度試驗。HH-4廣泛用于科研、院校等企事業單位實驗室、分析室。HH-4產品結構與特點:1、HH-4執行標準:Q/XCCKY004-2001《電熱恒溫水浴鍋》。...

  • 2025
    一分鐘了解HH·S21-6-S電熱恒溫水浴鍋

    一分鐘了解電熱恒溫水浴鍋HH·S21-6-S:電熱恒溫水浴鍋HH·S21-6-S的用途是什么?答:供大專院校、工礦企業和科研單位等做精密恒溫和輔助加熱之用。電熱恒溫水浴鍋HH·S21-6-S的特點是什么?答:內膽和頂蓋采用優質不銹鋼材料制作。微電腦智能控溫儀,具有設定、測量溫度雙數字顯示和P.I.D.自整定功能,控溫精確、可靠。電熱恒溫水浴鍋HH·S21一系列的技術參數是什么?答:序號項目HH·S11-2-SHH·S21-4-SHH·S21-6-SHH·S21-8-S1加熱方...

  • 2025
    硫化物酸化吹氣儀的使用須知

    硫化物酸化吹氣儀的酸化處理是向樣品(如水樣、消化后的固體樣品等)中加入適量的酸(通常是鹽酸或硫酸等強酸),使樣品中的硫化物轉化為硫化氫氣體。例如,在水樣中,原本以硫離子、硫氫根離子等形式存在的硫化物,在加入酸后會發生反應生成硫化氫氣體。具體的化學反應式為:S+H→HS,HS+H→HS↑。生成的硫化氫氣體隨載氣(一般為氮氣)進入吹氣系統。氮氣作為載氣,其作用是將硫化氫氣體從樣品溶液中吹出,并帶入后續的吸收裝置。硫化氫氣體進入吸收瓶或吸收顯色管中,被特定的吸收溶液(如乙酸鋅-乙酸...

  • 2025
    JM-S6精密恒溫水浴鍋參數知多少

    JM-S6精密恒溫水浴鍋廣泛用于干燥﹑濃縮﹑蒸餾化學試劑﹑藥品和生物制品,也可以用于水浴恒溫加熱和其他溫度實驗,是生物、遺傳、環保、醫藥衛生和教育科研的生化實驗室常用設備。其主要特點:①工作水箱選用不銹鋼材料,有很好的抗腐蝕性能;②微電腦控制,LED顯示,自動控溫。使用維護:1.向工作水箱注入不少于2/3的潔凈水,放置容器,蓋好蓋板。2.接通電源,打開電源開關。3.選擇溫度3-1、設定溫度及時間:第一次按SET鍵可設定溫度,此時上排數碼管數顯示SP下排數碼管數據閃動,此時儀表...

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