material
polypropylene tube
Quality Segment
product line
Discovery®
composition
bed wt., 500 mg
packaging
pk of 30
technique(s)
solid phase extraction (SPE): suitable
surface area
480 m2/g
volume
6 mL
matrix
Silica gel base material (irregularly shaped, acid washed)
matrix active group
ammonium ion, quaternary bonding, polymerically bonded, chloride counter-ion
particle size
50 μm
pore size
0.9 mL/g pore volume, 70 Å pore diameter
capacity
0.14 meq/g total capacity
application(s)
food and beverages
separation technique
ion exchange
General description
助留机理：阴离子交换
样品基质相容性：有机溶液或水溶液
样品基质相容性：有机溶液或水溶液
- 多点键合的季铵，在所有 pH 值下都带正电荷
- 反离子为 Cl-
- 离子交换能力为 ~0.14 毫当量/克。
- 通常用来提取在弱阴离子交换固定相上键合作用不够强的弱阴离子（如羧酸）
- 在柱子活化过程中可使用适当的缓冲液来改变配对离子已达到修饰选择性的目的
Legal Information
Discovery is a registered trademark of Merck KGaA, Darmstadt, Germany
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存储类别
11 - Combustible Solids
wgk
WGK 3
flash_point_f
>464.0 °F
flash_point_c
> 240 °C