material
polypropylene tube
Quality Segment
product line
Discovery®
composition
bed wt., 50 mg
packaging
pk of 108
technique(s)
solid phase extraction (SPE): suitable
surface area
480 m2/g
volume
1 mL
matrix
Silica gel base material (irregularly shaped, acid washed)
matrix active group
carboxypropyl bonding
particle size
50 μm
pore size
0.9 mL/g pore volume, 70 Å pore diameter
capacity
0.15 meq/g total capacity
application(s)
food and beverages
separation technique
ion exchange
General description
助留机理：阳离子交换
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
- 多点键合的乙二胺三乙酸相，pKa 为 4.8
- 反离子为 Na+
- 离子交换能力为 ~0.15 毫当量/克。
- pH 值为 6.8 或更大时带负电荷
- pH 值为 2.8 或更小时可使该相为中性不带电，从而更加容易地洗脱只在极强碱性条件下才能呈中性的强阳离子分析物
- 通常用于处理在强阳离子交换剂上不可逆保留的极强阳离子（高 pKa）化合物
Legal Information
Discovery is a registered trademark of Merck KGaA, Darmstadt, Germany
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signalword
Danger
hcodes
Hazard Classifications
Aquatic Chronic 3 - Eye Dam. 1 - Skin Sens. 1
wgk
WGK 3
flash_point_f
>464.0 °F
flash_point_c
> 240 °C