Analysis of Exhaust Components from the Pump Using the Multipurpose Ion Source “ChemZo”
Purpose
As an example of an application beyond retronasal aroma analysis, the exhaust from a diaphragm pump was measured using the ChemZo ion source for real-time gas analysis. This demonstrates the potential of real-time gas measurement in material science as well.
Methods
| Ion Source | ChemZo (BioChromato) |
| Mass Spectrometer | compact QTOF (Bruker) |
| Data Processing | Differential analysis was performed using the IDS (Intelligent Data Subtraction) tool in Spectra Scope, identifying peaks that appeared only during the pump operation. Compounds were estimated using database search through Compound Search. |
Results
Fig. 2 shows the mass spectra during pump operation. Peaks corresponding to plasticizers, likely from the diaphragm pump membrane, were detected. Fig.3 shows the results from the Compound Search. For m/z = 217.1064, no match was found in the database, so the composition was determined through precise mass analysis. As there was no need for sample pretreatment or column separation, the measurement and compound estimation were completed in approximately 5 minutes.
