OGTAC CC

physical access: “hands-on” training at OGTAC CC

OGTAC CC has launched as a Calibration Centre for the analysis of organic tracers and particle-phase constituents within EUROCHAMP-2020. It will be the first worldwide and will be focused on tracers and main SOA constituents of biogenic and anthropogenic origin.

ILCs = Inter laboratory comparisons: Here, samples of a defined concentration will be provided to participants. Considered target species are compounds like pinic acid, terpenylic acid, MBTCA, pinonic acid, methyl-erythritol, methyl-threitol and nitro-catechols. The participants will determine the concentration of the target species and all data will be collected, evaluated and distributed.

Training: All users will get training at state of the art instruments, e.g. High-Performance Liquid Chromatography Electrospray Ionization coupled to Time-of-Flight Mass Spectrometry (HPLC/(-)ESI-TOFMS), Ultra-Performance Liquid Chromatography Electrospray Ionization coupled to Ion-Mobility Mass Spectrometer with a Time-of-Flight Mass Spectrometry (UPLC/ESI-IMS-QTOFMS) and High-Performance Anion-Exchange Chromatography with Pulsed Amperometric Detection (HPAEC-PAD). Thus the infrastructure covers the separation of the target compounds (HPLC, UPLC, HPAEC) as well as their detection (TOFMS, PAD). The application of IMS will provide information about the ion mobility of the target.

OPTAC CC is open to all users interested in the field of organic analytics in atmospheric chemistry.

ILCs = Inter laboratory comparisons and training will be done under the frame of EUROCHAMP-2020.
Users outside of Germany have to undergo a TNA application process, as defined on the website, while German users presently pay an access fee to the Calibration Center. The OGTAC CC will be operated by a couple of scientist who are only dedicated for the above described actions and developments of new analytical methods.

There will be 6 training workshops announced per year. The duration is one working week (Monday to Friday) for each instrument. For the ILCs, samples of a defined concentration of SOA marker compounds will be provided once a year. The data will be collected and distributed between the groups.