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等级
for determination of sugar
质量水平
Agency
USP/NF
reag. Ph. Eur.
浓度
17.6 g/L±0.1 g/L Cu
密度
1.038-1.060 g/mL at 20 °C
适用性
in accordance for application
应用
food and beverages
general analytical
pharmaceutical (small molecule)
SMILES字符串
[Cu++].[O-]S([O-])(=O)=O
InChI
1S/Cu.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2
InChI key
ARUVKPQLZAKDPS-UHFFFAOYSA-L
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一般描述
Fehling测试的原理基本是以单糖和二糖的还原性为基础，而单糖和二糖的还原性又取决于游离酮或醛基的存在。该测试需要向Fehling A液（即CuSO4）和Fehling B液（即KOH和Na-K酒石酸盐）的混合物中加入几滴糖溶液。Fehling溶液被醛糖还原，产生不溶性黄色或红色氧化亚铜。葡萄糖、半乳糖和果糖等单糖以及乳糖和麦芽糖等二糖能够响应Fehling测试，因为它们具有游离酮或醛基，而蔗糖不含游离醛或酮基，所以不能响应测试。因此，Fehling测试也能用于区分还原糖（如麦芽糖）和非还原糖（如蔗糖）。
警示用语：
Warning
危险声明
预防措施声明
危险分类
Aquatic Acute 1 - Aquatic Chronic 2
储存分类代码
12 - Non Combustible Liquids
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
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The aquaporin (AQP) family consists of a number of small integral membrane proteins that transport water and glycerol. AQPs are critical for trans-epithelial fluid transport. Recent reports demonstrated that AQPs, particularly AQP1 and AQP5, are expressed in high grade tumor
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