추천 제품
material
polypropylene tube
Quality Level
구성
bed wt., 100 mg
포장
pk of 108
기술
solid phase extraction (SPE): suitable
표면적
480 m2/g
용적
1 mL
기질
Silica gel base material (irregularly shaped, acid washed)
기질 활성군
sulfonic acid bonding
입자 크기
50 μm
공극 크기
0.9 mL/g pore volume
70 Å pore diameter
용량
0.8 meq/g total capacity
응용 분야
food and beverages
분리 기술
ion exchange
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일반 설명
Sample Matrix Compatibility: Organic or aqueous solutions
- A polymerically bonded, benzene sulfonic acid functional group, pKa (< 1.0)
- Counter ion is H+
- Silica support allows for use with very organic solvents (no shrinking/swelling)
- Excellent capacity (0.8 meq/g) for cleaning up solution phase combinatorial chemistry reactions (removing target molecules from reaction by-products and excess reagents)
- The presence of the benzene ring offers some mixed-mode capabilities (hydrophobic interactions) that should be considered when extracting cations from aqueous matrices
법적 정보
신호어
Danger
유해 및 위험 성명서
Hazard Classifications
Aquatic Chronic 2 - Eye Dam. 1 - Flam. Sol. 1 - Skin Corr. 1A - Skin Sens. 1
Storage Class Code
4.1B - Flammable solid hazardous materials
WGK
WGK 3
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
문서
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.
프로토콜
Melamine was extracted from milk using Supelco® Discovery® DSC-SCX SPE tubes. Analysis was performed by HPLC, using an Ascentis® Express HILIC column.
Retention occurs through polar interaction between the sorbent and analytes. Typical sample matrices that can be employed in normal-phase SPE include hydrocarbon or fatty oils diluted in a solvent like hexane, isooctane, chlorinated solvent, THF, diethyl ether, or ethyl acetate.
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