packaging
pkg of 100 g
technique(s)
solid phase extraction (SPE): suitable
matrix active group
sulfonic acid bonding
application(s)
food and beverages
separation technique
ion exchange
Quality Level
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
- 多点键合的苯磺酸官能团，pKa (< 1.0)
- 反离子为 H+
- 硅胶基体可与强有机溶剂一起使用（不会收缩/溶胀）
- 极好的离子交换容量用于净化组合化学反应的溶液相（0.8 毫当量/克）（从反应副产物和多余试剂中移除目标分子）
- 苯环的存在提供了从水性基质中萃取阳离子时应考虑的某些混合模式能力（疏水相互作用）
Legal Information
Discovery is a registered trademark of Merck KGaA, Darmstadt, Germany
signalword
Danger
hcodes
Hazard Classifications
Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1A - Skin Sens. 1
存储类别
8A - Combustible corrosive hazardous materials
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
商品
SPE retention mechanism in this case is based on the electrostatic attraction of charged functional groups of the analyte(s) to oppositely charged functional groups on the sorbent.
实验方案
Melamine was extracted from milk using Supelco® Discovery® DSC-SCX SPE tubes. Analysis was performed by HPLC, using an Ascentis® Express HILIC column.
Normal-phase SPE separates analytes based on polar interaction with sorbents in diverse sample matrices.
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