Reliable analytical measurements in complex samples with low concentration levels require the use of precise, reproducible and robust methods with high sensitivity and selectivity. For these purposes chromatographic systems equipped with mass selective detectors are applied. Our institute possesses a GCMS and an HPLC-MS instrument.

Applications
The Agilent 1100 HPLC-MSD VL (1956A MSD) system is equipped with atmospheric pressure ionization interfaces (APCI and ESI), so both apolar and ionizable components can be determined. The quadrupole analyzer of the instrument has a working range of 50 - 1500 m/z. The single ion monitoring and scanning possibilities ensure the sensitive and selective measurements. The Agilent 6890N Network GC system with 7683 Series automatic injector and 5973 Network MS detector is equipped with a quadrupole analyzer working in the range of 2– 800 m/z. Both single ion monitoring and scanning possibilities are available thus complex samples with low concentrations can be handled.