Share This Author
Carbon nanotubes as assisted matrix for laser desorption/ionization time-of-flight mass spectrometry.
- Songyun Xu, Yongfeng Li, H. Zou, J. Qiu, Zhongxian Guo, B. Guo
- ChemistryAnalytical chemistry
- 4 October 2003
It has been found that carbon nanotubes can transfer energy to the analyte under laser irradiation, which makes analytes well desorbed/ionized, and the interference of intrinsic matrix ions can be eliminated.
Using oxidized carbon nanotubes as matrix for analysis of small molecules by MALDI-TOF MS
Zirconium phosphonate-modified porous silicon for highly specific capture of phosphopeptides and MALDI-TOF MS analysis.
The prepared ZrP-pSi wafer has been successfully applied for the enrichment of phosphopeptides from the tryptic digest of standard phosphoproteins beta- casein and alpha-casein and the excellent selectivity of this approach was demonstrated.
Highly specific enrichment of phosphopeptides by zirconium dioxide nanoparticles for phosphoproteome analysis
The high specificity of this approach was demonstrated by the isolation of phosphopeptides from the digests of model phosphoproteins, and Superior selectivity of ZrO2 nanoparticles for the enrichment of phosphorylated peptides than that of conventional immobilized metal affinity chromatography was observed.
Fe3+ immobilized metal affinity chromatography with silica monolithic capillary column for phosphoproteome analysis
It was demonstrated that Fe3+‐IDA silica monolithic IMAC capillary column could specifically capture the phosphopeptides from tryptic digest of α‐casein with analysis by MALDI‐TOF MS.
Characterization of small-molecule–biomacromolecule interactions: From simple to complex
Matrix with high salt tolerance for the analysis of peptide and protein samples by desorption/ionization time-of-flight mass spectrometry.
- Songyun Xu, M. Ye, Danke Xu, Xin Li, C. Pan, H. Zou
- Biology, ChemistryAnalytical chemistry
- 15 April 2006
A novel MALDI matrix, 3, 4-diaminobenzophenone (DABP), has been found with high tolerance for these contaminants in MAL DI MS analysis and can also effectively suppress the cation ion adduction of the peptides in the presence of high concentrations of metal ions in sample solution.
Enrichment of peptides from plasma for peptidome analysis using multiwalled carbon nanotubes.
A novel peptidome analysis approach using multiwalled carbon nanotubes (MWCNTs) as an alternative adsorbent to capture endogenous peptides from human plasma could hold promise of routine plasma peptidomes analysis.
Microfluidic Device for Coupling Capillary Electrophoresis and Matrix-Assisted Laser Desorption Ionization-Mass Spectrometry
Iminodiacetic acid derivatized porous silicon as a matrix support for sample pretreatment and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry analysis.
- Songyun Xu, Houjiang Zhou, H. Zou
- ChemistryRapid communications in mass spectrometry : RCM
- 15 June 2006
Iminodiacetic acid (IDA)-1,2-epoxy-9-decene has been synthesized and covalently linked to the surface of porous silicon wafer through a photochemical reaction, allowing the removal of contaminants prior to matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) by simply washing the porous silicon surface.