575657-U
HybridSPE®-Phospholipid
96-well Plate, bed wt. 50 mg, volume 2 mL, pk of 20
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About This Item
Código UNSPSC:
41104018
NACRES:
NB.21
Produtos recomendados
forma
solid
composição
bed wt., 50 mg
embalagem
pk of 20
técnica(s)
solid phase extraction (SPE): suitable
volume
2 mL
Grupo ativo da matriz
zirconia-based phase
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Descrição geral
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.
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.
Características e benefícios
- 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
Informações legais
HybridSPE is a registered trademark of Merck KGaA, Darmstadt, Germany
Código de classe de armazenamento
11 - Combustible Solids
Classe de risco de água (WGK)
WGK 3
Ponto de fulgor (°F)
Not applicable
Ponto de fulgor (°C)
Not applicable
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Determination of carboplatin in human plasma using HybridSPE-precipitation along with liquid chromatography-tandam mass spectrometry
Hongliang, J,, et al.
Journal of Chromatography. B, Biomedical Applications, 879 (22), 2162-2170 (2011)
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
C Ferreiro-Vera et al.
Journal of chromatography. A, 1240, 21-28 (2012-04-17)
Fractionation of biological fluids for proper analysis by LC-MS of low-abundance metabolites in the presence of high-abundant endogenous metabolites is of interest, particularly when the latter cause undesirable phenomena such as ionization suppression, as is the case with phospholipids (PLs).
Improved sensitivity of sedimentary phospholipid analysis resulting from a novel extract cleanup strategy
Zhu, Z., et al.
Organic Geochemistry, 65, 46-52 (2013)
Identification and elimination of ion suppression in the quantitative analysis of sirolimus in human blood by LC/ESI-MS/MS
Mano, N., et al.
Journal of Chromatography. B, Biomedical Applications, 879 (13-14), 968-974 (2011)
Artigos
We are presenting an article focusing on ion-suppression and phospholipid contamination and some of their major causes and difficulties.
Protocolos
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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