52667-U

Discovery^® DSC-SAX SPE Tube

bed wt. 2 g, volume 12 mL, pk of 20

• UNSPSC 코드: 41115712
• NACRES: NB.21

속성

• material: polypropylene tube
• 구성: bed wt., 2 g
• 포장: pk of 20
• 기술: solid phase extraction (SPE): suitable
• 표면적: 480 m²/g
• 용적: 12 mL
• Matrix: Silica gel base material (irregularly shaped, acid washed)
• 기질 활성군: ammonium ion, quaternary bonding, polymerically bonded, chloride counter-ion
• 입자 크기: 50 μm
• 공극 크기: 0.9 mL/g pore volume; 70 Å pore diameter
• 용량: 0.14 meq/g total capacity
• 응용 분야: food and beverages
• 분리 기술: ion exchange

설명

일반 설명

Retention Mechanism: Anion-exchange
Sample Matrix Compatibility: Organic or aqueous solutions

• A polymerically bonded quarternary amine that remains positively charged at all pH levels
• Counter ion is Cl^-
• Ion exchange capacity is ∼ 0.14 meq/g
• Commonly used when extracting weaker anions (e.g., carboxylic acids) that may not bind strongly enough to weaker anion-exchangers
• Selectivity can be modified by changing the counter ion with the appropriate buffer during conditioning

법적 정보

Discovery is a registered trademark of Merck KGaA, Darmstadt, Germany

안전성 정보

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point (°F): >464.0 °F
• Flash Point (°C): > 240 °C