廣州偉伯科技有限公司

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平博电竞

廣州偉伯科技有限公司
離子交換樹脂選型指南
樹脂型号主要用途及特性AMBERLITE IR120Na磺酸基聚苯乙烯系凝膠型強酸陽離子交換樹脂它具有優秀的物理和化學穩定性以及良好的耐溫性能,選擇性好,交換容量高,主要用于水的軟化。AMBERJET 1200Na凝膠強酸均粒陽樹脂1、适用所有水處理的軟化、除鹽系統。并可與Amberjet4200結合使用于混床,适用于所有床型。2、可替代普通強酸樹脂并具有更好工作性能。選擇性好,交換容量高,适合于
2020.03.16
葡萄糖(HK)檢測試劑盒産品說明書
(本中文說明書為翻譯稿,僅供參考,應以英文版為準)貨号:3091314 (Sigma-Aldrich : GAGO20)儲存溫度:2-8℃産品描述:酶作為一種分析工具,在食品、生化和制藥工業中得到了廣泛的應用。酶的方法是特異性的,可重複的,靈敏的,快速的,因此,是分析目的的理想方法。由于酶的高特異性和敏感性,定量分析可以在很少或沒有樣品準備的情況下進行1-5。本試劑盒用于食品和其它材料中葡萄糖的定
2020.02.26
卡爾費休水分測定常見問題
一、卡爾費休水分檢測過程為什麼要用标準水,而不推薦使用純淨水呢?卡爾費休法一般适用于檢測微量水分,使用純水校正卡爾費休水分儀時,需要稱量的水量很小,會明顯導緻标準偏差增加,從而導緻不确定度增加;标準水是具有确定水含量的混合物,稱量量大小遠遠大于純水,從而降低稱量所帶來的不确定性因素,提高準确度,同時标準水提供正規證書和不确定度,量值可溯源。二、稱量标準水總是有誤差,如何精确稱量?卡爾費休水标一般分
2019.11.18
生物染色劑與指示劑的區别
生物染色劑是利用加入對細胞中特殊物質(如DNA,蛋白質,脂質,糖類等)具有選擇性的染劑,以此區别特殊物質。指示劑是一類在其特定的PH值範圍内,随溶液PH值改變而變色的化合物,通常是有機弱酸或有機弱堿。在化學試劑中,把帶有顔色或可改變顔色的一類試劑統稱為色素試劑,它包括了指示劑、顯色劑和染色劑。酸堿指示劑是遇到酸、堿能改變試劑顔色的指示劑,主要用來指示溶液的PH值,指示酸堿滴定的終點,如:甲基橙、酚
2019.10.22
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吉祥电竞

464691332851479