52737-U

Discovery^® DSC-WCX SPE Tube

bed wt. 50 mg, volume 1 mL, pk of 108

• UNSPSC Code: 41115712
• NACRES: NB.21

Properties

• material: polypropylene tube
• Quality Level: 100
• 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

Description

General description

Retention Mechanism: Cation exchange
Sample Matrix Compatibility: Organic or aqueous solutions

• A polymerically bonded, ethylenediamine triacetic acid phase with a pKa of 4.8
• Counter ion is Na⁺
• Ion exchange capacity is ∼ 0.15 meq/g
• Carries a negative charge at pH 6.8 or above
• A pH of 2.8 or below neutralizes this phase for easier elution of strong cationic analytes that are neutralized only at extreme basic conditions
• Typically used when dealing with very strong cationic (high pKa) compounds that may be irreversibly retained on strong cation exchangers

Legal Information

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

Safety Information

• Pictograms: GHS05,GHS07
• Signal Word: Danger
• Hazard Statements: H317,H318,H412
• Precautionary Statements: P261 - P272 - P273 - P280 - P302 + P352 - P305 + P351 + P338
• 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