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SAMPLE HANDLING |
SAMPLE PREPARATION
SPE Cartridges
*PTFE frits
**Glass tubes with PTFE frits
R spr p® SPE Cartridg s
(Normal Phase)
Hydrophilic (polar) adsorbents used to extract hydrophilic analytes from nonpolar
matrices, such as organic solvents (e.g., polar contaminants from sample extracts).
All cartridges are manufactured using high-
density polypropylene and have polyethylene
frits unless otherwise noted.
Cartridges may be processed by any one or all
of these techniques: positive pressure, sidearm
flask, centrifuge, or vacuum manifold.
R spr p® SPE Cartridg s
(Bonded Reversed Phases)
Hydrophobic (nonpolar) silica-based adsorbents; used to extract hydrophobic
analytes from polar matrices, such as water (e.g., pesticides from water).
Clos d End SPE Cartridg : Activat d Sodium Sulfat
• High quality anhydrous sodium sulfate.
• Approximately 2 grams prepackaged in a convenient capped cartridge with both
male and female luer ends for easy connection to a variety of devices or equipment.
• The adsorbent is fully activated and ready to use for removal of excess water from
organic solvent solutions, prior to many types of analysis.
• Capped cartridges will remain active for long periods of storage in the lab.
1
Crescenzi, C.; DiCorcia, A.; Guerriero, E.; and Saperi, R. “Development of a Multiresidue Method for Analyzing Pesticide
Traces in Water Based on Solid-Phase Extraction and Electrospray Liquid Chromatography Mass Spectrometry”,
Environmental Science & Technology vol.31, no. 2 (1997) 479-488.
(Reference not available from Restek.)
CarboPr p® R v rsing SPE Cartridg s
• High adsorbent capacity (surface area ~200 m
2
/g) for large volume sampling.
• Chromatographic grade graphitized carbon provides consistent and quantitative
recoveries of a wide variety of semivolatiles, pesticides, and herbicides.
• 500 mg bed weight.
Reversing cartridge design allows convenient inverted elution of strongly retained
analytes using minimum solvent volumes. Ideal design for extraction of pesticides in
water.
1
24031
3 mL/500 mg 6 mL/500 mg 6 mL/1,000 mg 15 mL/2 g
(50-pk.)
(30-pk.)
(30-pk.)
(15-pk.)
Florisil
(EPA SW 846 methods and CLP protocols)
24031
24034
26228
24032*
26086**
26085**
Silica (EPA SW 846 methods)
24035
24038
24036*
1 mL/100 mg 3 mL/200 mg 3 mL/500 mg 6 mL/500 mg 6 mL/1,000 mg 60 mL/10 g
(100-pk)
(50-pk.)
(50-pk.)
(30-pk.)
(30-pk.)
(16-pk.)
C18 (high load,
endcapped)
26030
26031
24050
24052
24051
26035
SPE Cartridge
Bed Weight
qty.
cat#
price
Activated Sodium Sulfate
2 g
50-pk.
26207
SPE Cartridge
Bed Weight
qty.
cat#
price
CarboPrep 200 Reversing Cartridge
500 mg
30-pk.
26206
26030
26207
26206