Macherey-Nagel™ Chromabond™ XTR Adsorbent

Features

• Base material coarse-grained kieselguhr (also known as diatomaceous earth, hydromatrix, celite)
• large pore size, high pore volume, constantly high batch-to-batch quality
• pH working range 1–13

Application

• Liquid-liquid extraction of highly viscous aqueous solutions such as physiological fluids (blood, plasma, and serum) in clinical chemistry, dyes in textiles, environmental and food analysis without use of a separation funnel
• High water loadability without breakthrough of water during elution with organic solvents
• Also suited for removing small amounts of water from solvents which are not miscible with water

Advantages

• Fast, reproducible and economical
• Simultaneous preparation of several samples
• No problems with phase separation no formation of emulsions
• High recovery rates
• Saving of time and solvents
• Organic solutions need not to be dried after separation

Solvents applicable for elution

• diethyl ether
• tert-butyl methyl ether
• ethyl acetate
• n-hexane
• cyclohexane
• toluene
• dichloromethane (methylene chloride)
• trichloromethane (chloroform)
• solvent mixtures:
• trichloromethane – methanol (90:10, v/v)
• trichloromethane – methanol (85:15, v/v)
• diethyl ether – ethanol (90:10, v/v)
• diethyl ether – ethanol (80:20, v/v)
• dichloromethane – 2-propanol (90:10, v/v)
• dichloromethane – 2-propanol (85:15, v/v)