dSPE tips can be ordered with a variety of high-quality sorbents in custom amounts and combinations. Depending on the tip format, dSPE tips can hold 1 to 100 mg of sorbent.
Micro-elution tips have a unique low-retention frit and are compatible with all sorbents with > 50 μm particle size.
Reversed Phase (RP)
Our reversed phase sorbent is a styrene divinylbenzene polymer with an average particle size of 75 μm. It is ideal for nonpolar and slightly polar compounds.
Weak Anion Exchange (WAX)
Our weak anion exchange (WAX) sorbent has a secondary amine phase with a styrene divinyl benzene backbone for the binding of strong acids, such as sulphates. WAX sorbents are offered in 10-20 μm and 55-65 μm particle size ranges.
Strong Anion Exchange (SAX)
Our strong anion exchange (SAX) sorbent has a quaternary amine phase with a styrene divinyl benzene backbone for the binding of acidic compounds. SAX sorbent is offered in a 55-65 μm particle size range.
Weak Cation Exchange (WCX)
Our weak cation exchange (WCX) sorbent has a carboxylic acid stationary phase with a styrene divinyl benzene backbone for the binding of strong bases such as quaternary amines. WCX sorbent is offered in a 30-70 μm particle size range.
Strong Cation Exchange (SCX)
Our strong cation exchange (SCX) sorbent has a sulfonated stationary phase with a styrene divinyl benzene backbone for the binding of basic compounds. SCX sorbents are offered in 10-20 μm, 25-35 μm and 55-65 μm particle size ranges.
Our silica sorbent is amenable to extraction via hydrogen bonding. It is available in a 40-60 μm particle size range.
Our C18 sorbent has a silica gel backbone. It is endcapped, with a carbon load of 18-22%, and 40-60 μm particle size range.
Our mixed mode products are completely customized by choosing any of the above chemistries to combine in one tip. Each sorbent’s mass can also be customized for optimal extraction characteristics for any analyte/matrix combination.
Hydrophilic-Lipophilic Balance (HLB)-Coming Soon!
DPX is in the beta-testing phase of their new HLB sorbent. Contact us for free sample tips!
HybridSPE® – Phospholipid Removal
DPX is proud to offer HybridSPE® (a Supelco/Sigma product) sorbent. It is a proprietary zirconia coated silica that selectively removes phospholipids from biological samples.
DPX Technologies provides tips that can be used manually with single or multi-channel pipettors, or on automated liquid handling systems.
- Hamilton 300 μL/ 1 mL
- Tecan 200 μL/1 mL
- Eppendorf epT.I.P.S. 1 mL
- Gerstel 1 mL
- Integra 300 μL/1250 μL