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Resprep Polymeric SPE Cartridges and 96-Well Plates (Reversed-Phase mode, Ion-Exchange mode)

  • 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.
Ordering Notes

Certificates of analysis for this product are provided electronically. To view and download your certificate, simply visit www.restek.com/documentation

Documentation and Instructions Sheets

Resprep Polymeric SPE Cartridges and 96-Well Plates (Reversed-Phase mode, Ion-Exchange mode)

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Catalog # Clear All
28449 HLB 30 µm General-purpose for acids, bases, or neutrals; high capacity for polar compounds. 1 mL, 30 mg 100-pk. Resprep Polymeric SPE Cartridge Select Deselect

Catalog # 28449

Packing
HLB  
Particle Size
30 µm  
Recommended Analytes
General-purpose for acids, bases, or neutrals; high capacity for polar compounds.  
Volume
1 mL, 30 mg  
Units
100-pk.  
Product Name
Resprep Polymeric SPE Cartridge  
28450 HLB 60 µm General-purpose for acids, bases, or neutrals; high capacity for polar compounds. 3 mL, 60 mg 50-pk. Resprep Polymeric SPE Cartridge Select Deselect

Catalog # 28450

Packing
HLB  
Particle Size
60 µm  
Recommended Analytes
General-purpose for acids, bases, or neutrals; high capacity for polar compounds.  
Volume
3 mL, 60 mg  
Units
50-pk.  
Product Name
Resprep Polymeric SPE Cartridge  
28451 HLB 60 µm General-purpose for acids, bases, or neutrals; high capacity for polar compounds. 6 mL, 200 mg 30-pk. Resprep Polymeric SPE Cartridge Select Deselect

Catalog # 28451

Packing
HLB  
Particle Size
60 µm  
Recommended Analytes
General-purpose for acids, bases, or neutrals; high capacity for polar compounds.  
Volume
6 mL, 200 mg  
Units
30-pk.  
Product Name
Resprep Polymeric SPE Cartridge  
28452 HLB 60 µm General-purpose for acids, bases, or neutrals; high capacity for polar compounds. 6 mL, 500 mg 30-pk. Resprep Polymeric SPE Cartridge Select Deselect

Catalog # 28452

Packing
HLB  
Particle Size
60 µm  
Recommended Analytes
General-purpose for acids, bases, or neutrals; high capacity for polar compounds.  
Volume
6 mL, 500 mg  
Units
30-pk.  
Product Name
Resprep Polymeric SPE Cartridge  
28453 HLB 30 µm General-purpose for acids, bases, or neutrals; high capacity for polar compounds. 10 mg ea. Resprep Polymeric SPE 96-Well Plate Select Deselect

Catalog # 28453

Packing
HLB  
Particle Size
30 µm  
Recommended Analytes
General-purpose for acids, bases, or neutrals; high capacity for polar compounds.  
Volume
10 mg  
Units
ea.  
Product Name
Resprep Polymeric SPE 96-Well Plate  
28454 HLB 30 µm General-purpose for acids, bases, or neutrals; high capacity for polar compounds. 30 mg ea. Resprep Polymeric SPE 96-Well Plate Select Deselect

Catalog # 28454

Packing
HLB  
Particle Size
30 µm  
Recommended Analytes
General-purpose for acids, bases, or neutrals; high capacity for polar compounds.  
Volume
30 mg  
Units
ea.  
Product Name
Resprep Polymeric SPE 96-Well Plate  
28455 MAX 30 µm Acids 1 mL, 30 mg 100-pk. Resprep Polymeric SPE Cartridge Select Deselect

Catalog # 28455

Packing
MAX  
Particle Size
30 µm  
Recommended Analytes
Acids  
Volume
1 mL, 30 mg  
Units
100-pk.  
Product Name
Resprep Polymeric SPE Cartridge  
28456 MAX 60 µm Acids 3 mL, 60 mg 50-pk. Resprep Polymeric SPE Cartridge Select Deselect

Catalog # 28456

Packing
MAX  
Particle Size
60 µm  
Recommended Analytes
Acids  
Volume
3 mL, 60 mg  
Units
50-pk.  
Product Name
Resprep Polymeric SPE Cartridge  
28457 MAX 60 µm Acids 6 mL, 150 mg 30-pk. Resprep Polymeric SPE Cartridge Select Deselect

Catalog # 28457

Packing
MAX  
Particle Size
60 µm  
Recommended Analytes
Acids  
Volume
6 mL, 150 mg  
Units
30-pk.  
Product Name
Resprep Polymeric SPE Cartridge  
28458 MAX 60 µm Acids 6 mL, 500 mg 30-pk. Resprep Polymeric SPE Cartridge Select Deselect

Catalog # 28458

Packing
MAX  
Particle Size
60 µm  
Recommended Analytes
Acids  
Volume
6 mL, 500 mg  
Units
30-pk.  
Product Name
Resprep Polymeric SPE Cartridge  
28459 MAX 30 µm Acids 10 mg ea. Resprep Polymeric SPE 96-Well Plate Select Deselect

Catalog # 28459

Packing
MAX  
Particle Size
30 µm  
Recommended Analytes
Acids  
Volume
10 mg  
Units
ea.  
Product Name
Resprep Polymeric SPE 96-Well Plate  
28460 MAX 30 µm Acids 30 mg ea. Resprep Polymeric SPE 96-Well Plate Select Deselect

Catalog # 28460

Packing
MAX  
Particle Size
30 µm  
Recommended Analytes
Acids  
Volume
30 mg  
Units
ea.  
Product Name
Resprep Polymeric SPE 96-Well Plate  
28461 MCX 30 µm Bases 1 mL, 30 mg 100-pk. Resprep Polymeric SPE Cartridge Select Deselect

Catalog # 28461

Packing
MCX  
Particle Size
30 µm  
Recommended Analytes
Bases  
Volume
1 mL, 30 mg  
Units
100-pk.  
Product Name
Resprep Polymeric SPE Cartridge  
28462 MCX 60 µm Bases 3 mL, 60 mg 50-pk. Resprep Polymeric SPE Cartridge Select Deselect

Catalog # 28462

Packing
MCX  
Particle Size
60 µm  
Recommended Analytes
Bases  
Volume
3 mL, 60 mg  
Units
50-pk.  
Product Name
Resprep Polymeric SPE Cartridge  
28463 MCX 60 µm Bases 6 mL, 150 mg 30-pk. Resprep Polymeric SPE Cartridge Select Deselect

Catalog # 28463

Packing
MCX  
Particle Size
60 µm  
Recommended Analytes
Bases  
Volume
6 mL, 150 mg  
Units
30-pk.  
Product Name
Resprep Polymeric SPE Cartridge  
28464 MCX 60 µm Bases 6 mL, 500 mg 30-pk. Resprep Polymeric SPE Cartridge Select Deselect

Catalog # 28464

Packing
MCX  
Particle Size
60 µm  
Recommended Analytes
Bases  
Volume
6 mL, 500 mg  
Units
30-pk.  
Product Name
Resprep Polymeric SPE Cartridge  
28465 MCX 30 µm Bases 10 mg ea. Resprep Polymeric SPE 96-Well Plate Select Deselect

Catalog # 28465

Packing
MCX  
Particle Size
30 µm  
Recommended Analytes
Bases  
Volume
10 mg  
Units
ea.  
Product Name
Resprep Polymeric SPE 96-Well Plate  
28466 MCX 30 µm Bases 30 mg ea. Resprep Polymeric SPE 96-Well Plate Select Deselect

Catalog # 28466

Packing
MCX  
Particle Size
30 µm  
Recommended Analytes
Bases  
Volume
30 mg  
Units
ea.  
Product Name
Resprep Polymeric SPE 96-Well Plate  
28467 WAX 30 µm Strong acids 1 mL, 30 mg 100-pk. Resprep Polymeric SPE Cartridge Select Deselect

Catalog # 28467

Packing
WAX  
Particle Size
30 µm  
Recommended Analytes
Strong acids  
Volume
1 mL, 30 mg  
Units
100-pk.  
Product Name
Resprep Polymeric SPE Cartridge  
28468 WAX 60 µm Strong acids 3 mL, 60 mg 50-pk. Resprep Polymeric SPE Cartridge Select Deselect

Catalog # 28468

Packing
WAX  
Particle Size
60 µm  
Recommended Analytes
Strong acids  
Volume
3 mL, 60 mg  
Units
50-pk.  
Product Name
Resprep Polymeric SPE Cartridge  
28469 WAX 60 µm Strong acids 6 mL, 150 mg 30-pk. Resprep Polymeric SPE Cartridge Select Deselect

Catalog # 28469

Packing
WAX  
Particle Size
60 µm  
Recommended Analytes
Strong acids  
Volume
6 mL, 150 mg  
Units
30-pk.  
Product Name
Resprep Polymeric SPE Cartridge  
28470 WAX 60 µm Strong acids 6 mL, 500 mg 30-pk. Resprep Polymeric SPE Cartridge Select Deselect

Catalog # 28470

Packing
WAX  
Particle Size
60 µm  
Recommended Analytes
Strong acids  
Volume
6 mL, 500 mg  
Units
30-pk.  
Product Name
Resprep Polymeric SPE Cartridge  
28471 WAX 30 µm Strong acids 10 mg ea. Resprep Polymeric SPE 96-Well Plate Select Deselect

Catalog # 28471

Packing
WAX  
Particle Size
30 µm  
Recommended Analytes
Strong acids  
Volume
10 mg  
Units
ea.  
Product Name
Resprep Polymeric SPE 96-Well Plate  
28472 WAX 30 µm Strong acids 30 mg ea. Resprep Polymeric SPE 96-Well Plate Select Deselect

Catalog # 28472

Packing
WAX  
Particle Size
30 µm  
Recommended Analytes
Strong acids  
Volume
30 mg  
Units
ea.  
Product Name
Resprep Polymeric SPE 96-Well Plate  
28473 WCX 30 µm Strong bases 1 mL, 30 mg 100-pk. Resprep Polymeric SPE Cartridge Select Deselect

Catalog # 28473

Packing
WCX  
Particle Size
30 µm  
Recommended Analytes
Strong bases  
Volume
1 mL, 30 mg  
Units
100-pk.  
Product Name
Resprep Polymeric SPE Cartridge  
28474 WCX 60 µm Strong bases 3 mL, 60 mg 50-pk. Resprep Polymeric SPE Cartridge Select Deselect

Catalog # 28474

Packing
WCX  
Particle Size
60 µm  
Recommended Analytes
Strong bases  
Volume
3 mL, 60 mg  
Units
50-pk.  
Product Name
Resprep Polymeric SPE Cartridge  
28475 WCX 60 µm Strong bases 6 mL, 200 mg 30-pk. Resprep Polymeric SPE Cartridge Select Deselect

Catalog # 28475

Packing
WCX  
Particle Size
60 µm  
Recommended Analytes
Strong bases  
Volume
6 mL, 200 mg  
Units
30-pk.  
Product Name
Resprep Polymeric SPE Cartridge  
28476 WCX 60 µm Strong bases 6 mL, 500 mg 30-pk. Resprep Polymeric SPE Cartridge Select Deselect

Catalog # 28476

Packing
WCX  
Particle Size
60 µm  
Recommended Analytes
Strong bases  
Volume
6 mL, 500 mg  
Units
30-pk.  
Product Name
Resprep Polymeric SPE Cartridge  
28477 WCX 30 µm Strong bases 10 mg ea. Resprep Polymeric SPE 96-Well Plate Select Deselect

Catalog # 28477

Packing
WCX  
Particle Size
30 µm  
Recommended Analytes
Strong bases  
Volume
10 mg  
Units
ea.  
Product Name
Resprep Polymeric SPE 96-Well Plate  
28478 WCX 30 µm Strong bases 30 mg ea. Resprep Polymeric SPE 96-Well Plate Select Deselect

Catalog # 28478

Packing
WCX  
Particle Size
30 µm  
Recommended Analytes
Strong bases  
Volume
30 mg  
Units
ea.  
Product Name
Resprep Polymeric SPE 96-Well Plate  

HLB – Hydrophilic-Lipophilic Balance
MAX – Mixed-Mode, Strong Anion Exchange
MCX – Mixed-Mode, Strong Cation Exchange
WAX – Mixed-Mode, Weak Anion Exchange
WCX – Mixed-Mode, Weak Cation Exchange