**Acknowledgements**

The authors would like to thank CSIRO (Commonwealth Scientific and Industrial Research Organization), Division of Petroleum Resources (AUS) for assembling LmPy-GC/MSMS system, and PETROBRAS/Brazil for financial support. Special thanks to *CNPq (Conselho Nacional de Desenvolvimento Científico e Tecnológico)* for financial support for the development of research through the project "*Caracterização molecular de componentes orgânicos através do sistema Micropirólise a Laser acoplado a CG-EMEM* (401497/2016-0)".
