Analytical Instrument Documents

In this study aroma compounds in Hojicha leaves were analyzed using thermal desorption (TD)-GC-MS. The data were then analyzed using msFineAnalysis IQ Ver.3, and the results of the integrated analysis are reported here.

In this MSTips, we report a case study of AI Structure Analysis of oyster aroma compounds using HS-SPME-GC-QMS and msFineAnalysis IQ Ver.3. Molecular mass information obtained from the CI data was used to evaluate whether the structure reported for oyster alcohol, 1,5-octadien-3-ol, could be proposed as a candidate structure by AI Structure Analysis.

To address the challenges associated with manual structural elucidation using GC-QMS data, we developed msFineAnalysis IQ, which incorporates a structural elucidation approach based on deep learning-assisted mass spectrum prediction (AI Structure Analysis). Accordingly, the product name was changed from msFineAnalysis iQ to msFineAnalysis IQ to reflect the incorporation of AI technology. This application note introduces the AI Structure Analysis function in msFineAnalysis IQ.

In this report, we analyzed the oligomer region of the same samples using a high-resolution MALDI-TOFMS JMS-S3000 "SpiralTOF™-plus 2.0" in combination with Kendrick Mass Defect (KMD) analysis.

In this application, we report the analysis of off-flavor components in natural rubber by using HS-GC/MS/MS.

In this report, we performed structural analysis of the end groups of poly(methyl methacrylate) by using MALDI-TOFMS and pyrolysis GC-TOFMS in a complementary manner.

This application note reports the syringe sampling procedure, and measurement results of example compounds that are sensitive to heat and light.

In MSTips No. 333, we reported the measurement results of anionic surfactants less than m/z 1000. In this application note, we report the measurement of polyethylene glycol (average molecular weight 5000) having phosphate groups as an end group.

In this report, simazine and thiobencarb, pesticides subject to environmental standards for water pollution, were measured with hydrogen carrier gas. The results show good linearity of the calibration curve and reproducibility at the lower limit of quantification.

In this application note, two types of commercially available PET resins are analyzed by reactive pyrolysis GC-TOFMS and NMR, and the results of analysis to determine whether they are PET or G-PET are reported.