Location
- Research Support Building (CACTUS)
- Rúa de Constantino Candeira, 1. Campus Vida , 15782Santiago de Compostela
- Phones
- 881 816 242
The fragmentation allows the compound to be identified by searching in spectra libraries (NIST, WILLEY, etc.). This is why the purity of the sample to be measured is important, since any impurity can interfere with the measurement and subsequent identification, due to the fact that there is no separation prior to the mass spectrometer.
The instrument used for Probe EI/CI has the possibility of direct introduction of the sample with a heated DIP (Direct Injection Probe), which can be heated up to 450 °C. The ideal samples to measure with these techniques are apolar compounds with high volatility and low molecular weight (50-1000 Da) and high thermal stability.
The samples must be solid or in solution (non-polar solvents such as dichloromethane, chloroform, hexane...), in a vial or tube labelled with the sample code; and in a concentration between 0.2 and 1 mg/mL.
Mass Spectrometry and Proteomics Unit
- Research Support Building (CACTUS)
- Rúa de Constantino Candeira, 1. Campus Vida , 15782Santiago de Compostela
- 881 816 242