Cartridges and Well Plates

Cartridges and Well Plates


Resprep CarboPrep Plus SPE Cartridges

  • Designed specifically for the cleanup of sample extracts for organochlorine pesticides analysis.
  • Excellent alternative to Florisil products, especially for the removal of nonvolatile matrix components that contaminate GC inlets and columns.
  • Proprietary treatment renders the carbon consistent and clean, ensuring the same selectivity tube to tube, and lot to lot with no interfering background.
  • Uses the same hardware, solvents, and solvent volumes as traditional Florisil cleanup, so switching is simple.

View Product Information

Resprep CarboPrep SPE Cartridges

  • Improved recovery of sulfonylurea herbicides, phenols, carbamates, and triazine herbicides, compared to C18 and C8 cartridges.
  • Wide range of selectivity for both analytes and their metabolites or degradation products.
  • Rapid sampling flow rates; uncompromised recoveries.
  • Maximum capacity for contaminant cleanup.
  • Controlled manufacturing improves cleanliness and ensures reproducible performance.
  • Excellent performance removing pigments from samples.

View Product Information

Pesticide Residue Cleanup SPE Cartridges

  • Convenient, multiple adsorbent beds in a single cartridge.
  • For use in multiresidue pesticide analysis to remove matrix interferences.
  • Excellent for cleanup of dietary supplement extracts.

View Product Information

Method Specific SPE Cartridges

These cartridges have been specifically designed to provide consistent and reproducible results for the method or application stated.

View Product Information

Resprep SPE Cartridges (Normal Phase)

Hydrophilic (polar) adsorbents used to extract hydrophilic analytes from nonpolar matrices, such as organic solvents (e.g., polar contaminants from sample extracts).

Meets requirements of EPA Methods 515.2 and 553.

View Product Information

Resprep EPH Fractionation SPE Cartridge

  • Method-specific performance for extractable petroleum hydrocarbon (EPH) analysis of soil and water samples.
  • Complete separation of aliphatic and aromatic compounds into distinct fractions.
  • Guaranteed background level under the strict reporting limits of MA and NJ EPH methods.
  • Superior lot-to-lot reproducibility and storage stability ensured by rigorous QC testing and moisture-resistant packaging.
  • Choose 5 g cartridges for higher loading capacity; use 2 g cartridges for automated systems, time-saving, and solvent reduction.

View Product Information

Resprep SLE Cartridges and 96-Well Plates

  • Faster and easier than SPE and liquid-liquid extraction: just load, wait 5 minutes, then elute.
  • Effective removal of proteins, phospholipids, and salts.
  • Quick concentration step increases sensitivity.
  • Easy to automate for high-throughput laboratories.
  • Suitable for a wide range of sample matrices and analyte pKa values.

Volume guidelines: Selecting an SLE format with sufficient loading capacity (1 mg sorbent to 1µL diluted sample) is very important because the entire sample volume (including 1:1 dilution in buffer) is absorbed into the diatomaceous earth sorbent. For example, a 100 µL sample should be diluted 1:1 with buffer for a total volume of 200 µL, which requires use of a 200 mg SLE product.

View Product Information

Resprep S-DVB SPE Cartridge (Reversed Phase)

  • High-purity material with highest reproducibility and lowest blank values due to an optimized manufacturing process.
  • Excellent recovery rates, especially for the enrichment of pharmaceuticals and active ingredients, due to the spherical particle shape, homogeneous surface, and optimized pore structure.
  • Hydrophobic styrene-divinylbenzene (SDVB) copolymer, pH stability 1–14.
  • Recommended analytes: pharmaceuticals/active ingredients from tablets, creams and water/wastewater; drugs from blood, plasma, serum, and urine; trace analysis of herbicides, pesticides, PAHs, PCBs, and phenols from water.

View Product Information

Resprep PLR SPE Products

  • Remove both proteins and phospholipids from biological samples in one easy, high-efficiency procedure.
  • Avoid signal suppression by removing interfering phospholipids from the sample matrix.
  • No method development—straightforward and effective sample preparation for acids, bases, and neutral compounds.
  • Offered in 96-well plate format for high-throughput or automated workflows and in cartridge format for lower throughput applications.
  • 3-way versatility for filtration—compatible with all common devices:
    • Vacuum manifolds
    • Positive pressure manifolds
    • Centrifugation

View Product Information

Resprep Polymeric SPE Cartridges and 96-Well Plates (Reversed Phase)

  • Silica-free, bonded polymeric material—no unwanted secondary silica interactions, even with basic compounds.
  • High surface area—higher loading capacity compared to silica-based sorbents.
  • Stable over a wide pH range (0–14)—won’t hydrolyze under extreme conditions.
  • Water-wettable—streamlined conditioning and equilibration steps drastically reduce solvent usage and sample prep time.
  • No flow-rate dependence—maintains retention and capacity after conditioning, even if dried out from vacuum or positive pressure flows.
  • Choose cartridges for high loading capacity; 96-well plates for high throughput and automation.

View Product Information

Resprep Closed End SPE Cartridge: Activated Sodium Sulfate

  • 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.

View Product Information

CarboPrep Reversing SPE Cartridges

  • High adsorbent capacity (surface area ~200 m2/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.

View Product Information

Resprep SPE Tube Parts & Accessories

Resprep tubes, frits, caps, and connectors for your method development needs.

View Product Information

Resprep SPE Cartridges (Bonded Reversed Phases)

Hydrophobic (nonpolar) silica-based adsorbents; used to extract hydrophobic analytes from polar matrices, such as water (e.g., pesticides from water).

C18 (high load, end-capped)

View Product Information

Restek Domestic Customer Service



Your Full Name

Your Email

Company Name


Spam Block (Please leave this blank)
Drag and Drop Attachments Here (optional)

all fields required

Thank you

Your message has been sent. We will be in touch shortly.

Message not sent

Sorry, your message could not be sent at this time. Please try again later, or contact Restek or your local Restek representative via phone.