96-well Plate, bed wt. 50 mg, volume 2 mL, pk of 1


Quality Level


bed wt., 50 mg


pk of 1


solid phase extraction (SPE): suitable


2 mL

matrix active group

zirconia-based phase

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General description

HybridSPE-Phospholipid technology is a simple and generic sample prep platform designed for the gross level removal of endogenous protein and phospholipid interferences from biological plasma and serum prior to LC-MS or LC-MS/MS analysis. Biological plasma or serum is first subjected to protein precipitation via the addition and mixing of acidified acetonitrile. Precipitated proteins are then removed by centrifugation and the resulting supernatant is loaded on the HybridSPE-Phospholipid 96-well plate or cartridge which acts as a chemical filter that specifically targets the removal of endogenous sample phospholipids. The phospholipid retention mechanism is based on a highly selective Lewis acid-base interaction between the proprietary zirconia ions functionally bonded to the HybridSPE-Phospholipid stationary phase and the phosphate moiety consistent with all phospholipids. The resulting eluent is ready for immediate LC-MS or LC-MS-MS analysis.

The "In-well" and "In-cartridge" precipitation methods are available for the HybridSPE-Phospholipid 96-well version and HybridSPE-Phospholipid Ultra cartridge in which biological plasma/serum is first added to either the well or cartridge, followed by acidified acetonitrile (precipitation agent). After a brief mixing/vortexing step, vacuum is applied. Because the 96-well and Ultra cartridge versions contain a series of low porosity hydrophobic filters/frits, the packed-bed filter/frit assembly acts as a depth filter facilitating the concurrent removal of both phospholipids and precipitated proteins during the extraction process. Standard HybridSPE-Phospholipid cartridges require an "off-line" precipitation method.

Features and Benefits

  • Merges the simplicity of protein precipitation and the selectivity of SPE via the targeted removal of phospholipids
  • Reduce ion-suppression through the complete removal of phospholipids and precipitated proteins
  • 2-3 step generic procedure
  • Minimal to no method development
  • Available in 96-well and 1 mL cartridge dimensions

Legal Information

HybridSPE is a registered trademark of Sigma-Aldrich Co. LLC


NONH for all modes of transport

WGK Germany


A high-throughput method for liquid chromatography-tandem mass spectrometry determination of plasma alkylresorcinols, biomarkers of whole grain wheat and rye intake
Ross, A.B., et al.
Analytical Biochemistry, 499, 1-7 (2016)
Pankaj K Kanaujia et al.
Journal of chromatography. A, 1218(38), 6612-6620 (2011-08-25)
Selective extraction and enrichment of nerve agent degradation products has been achieved using zirconia based commercial solid-phase extraction cartridges. Target analytes were O-alkyl alkylphosphonic acids and alkylphosphonic acids, the environmental markers of nerve agents such as sarin, soman and VX....
Improved sensitivity of sedimentary phospholipid analysis resulting from a novel extract cleanup strategy
Zhu, Z., et al.
Organic Geochemistry, 65, 46-52 (2013)
Investigation of endogenous blood plasma phospholipids, cholesterol and glycerides that contribute to matrix effects in bioanalysis by liquid chromatography/mass spectrometry
Ismaiel, O., et al.
Journal of Chromatography. B, Biomedical Applications, 878 (31), 3303-3316 (2010)
Nora Unceta et al.
Journal of pharmaceutical and biomedical analysis, 70, 529-533 (2012-06-01)
This work proposes a liquid chromatography-electrospray ionization ion trap mass spectrometry (LC-ESI-ITMS) method, for the quantification of sildenafil (SDF), tadalafil (TDF) and vardenafil (VDF) and their metabolites N-desmethylSDF, O-desethylSDF and N-desethylVDF, preceded by a sample preparation step based on protein...
This Sigma-Aldrich article continues to detail new methodology for the analysis of Vitamin D metabolites using HybridSPE-Phospholipid technology.
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This study demonstrates the impact of various mobile phase modifiers on the separation; formate modifiers outperform acetate in terms of MS signals (or sensitivity) and chromatographic resolution.
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We are presenting an article focusing on ion-suppression and phospholipid contamination and some of their major causes and difficulties.
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This Sigma-Aldrich article discusses how the HybridSPE-Phospholipid Technology works and how the phospholipids are removed.
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his study demonstrates the analysis of Warfarin in plasma samples utilizing chiral and achiral (reversed-phase) LC-MS and effective sample prep to remove endogenous phospholipids
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A simple method to enrich phospholipids from plasma samples, involving a HybridSPE-PPT 96-well plate that both retains phospholipids and removes precipitated proteins.
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The conversion of clinical methods to LC/MS/MS offers advantages; however, is accompanied by a few limitations, notably interference effects from the endogenous sample matrix.
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