物料
PE frit (20 μm)
polypropylene
组成
bed wt., 1 g
包装
pk of 20
技术
solid phase extraction (SPE): suitable
体积
12 mL
杂质
<5% Water content
基质
polyamide resin base material
基质活性基团
amide, poly- phase
粒径
50-160 μm
pH值范围
4.5-7.5(surface pH)
堆积密度
0.2‑0.3 g/mL
应用
food and beverages
分离技术
reversed phase
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一般描述
助留机理：反相
样品基质相容性：水溶液或甲醇溶液
样品基质相容性：水溶液或甲醇溶液
- 聚酰胺树脂：粒度：50-160μm，表面 pH：4.5-7.5，密度：0.2-0.3cm3/g，含水量：< 5%
- 用于按照反相机理，通过化合物羟基基团与树脂的酰胺基团之间的强烈的氢键作用，从水溶液或甲醇溶液中吸附极性化合物（-OH 基团，尤其是酚醛化合物）
- 用于萃取单宁、叶绿素、腐殖酸、药理活性的类萜、黄酮类、没食子酸、儿茶酚 A、原儿茶酸和间苯三酚
- 也用于萃取芳族羧酸和硝基芳香化合物
- 不可逆地保留苯醌
法律信息
Discovery is a registered trademark of Merck KGaA, Darmstadt, Germany
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
Takayuki Asada et al.
Journal of chromatography. A, 1351, 21-28 (2014-06-04)
Isolation techniques for anthocyanidin 3,5-diglucosides and their derivatives from three types of supramolecular pigments were newly developed using two SPE (Discovery DPA-6S and DSC-SCX) cartridges. Initially, malonylawobanin from commelinin supramolecular complex yielded 79.5% with 85.7% purity using DPA-6S, while DSC-SCX
Takayuki Asada et al.
Food chemistry, 166, 10-16 (2014-07-24)
An aluminium complex of crude Delaware grape anthocyanins, bearing an ortho-dihydroxyl group on the B ring and/or a p-coumaroyl group as an ester with flavocommelin, was formed and isolated by ethanol precipitation. Using a Discovery DPA-6S short column, selected anthocyanins
商品
Reversed-phase interaction will retain most molecules with hydrophobic character; it is very useful for extracting analytes that are very diverse in structure within the same sample.
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