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
Depending on the concentration of the analytes eluates can be analysed immediately, or the organic solvent is evaporated. The pH value of the aqueous solution can be altered on the column, which enables elution of different compounds of a sample under optimised conditions. Under certain circumstances, acidic, neutral, and basic compounds can be fractionated in this way.
Eluents with too high alcohol contents cause an increase in volume of the aqueous phase on the CHROMABOND® XTR. Here the column could be overloaded and the aqueous phase displaced from the column. In this case, a greater capacity column should be used.
Ordering information
column volume
1 mL
3 mL
6 mL
15 mL
30 mL
45 mL
70 mL
150 mL
adsorbent weight
250 mg
500 mg
1 g
3 g
4.5 g
8.3 g
14.5 g
37.5 g
pack of
100
50
30
30
30
30
30
10
CHROMABOND® XTR polypropylene columns
730501
730502
730487
730489
730505
730506
730507
730509
CHROMABOND® XTR polypropylene columns · BigPacks
730487.250 (pack of 250)
730507.100 (pack of 100)
CHROMABOND® MULTI 96 XTR
96er plates 96 x 150 mg, packs of 1 plate, for max. 96 x 0.2 mL aqueous solution
738131.150M
CHROMABOND® XTR adsorbent
50 bags of 14.5 g (for max. 20 mL aqueous solution each)
for 70 mL PP columns with 100 PE filter elements
730585
for NT20 with 50 PE filter elements (dia. 10 mm)
730586
500 g
730595.500 *
1 kg
730595.1000 *
5 kg
730595.5000 *
Accessories for liquid-liquid extraction with CHROMABOND® XTR
variable polypropylene rack for 24 positions, incl. 24 PP stopcocks and 24 PP needles
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