ICP-MS can be applied to the determination of metals and metalloids in trace and ultra-trace concentrations in aqueous solutions or via coupling to laser ablation also directly in solid samples.
Quadrupole-ICP-MS-spectrometer XSeries II (Thermo Scientific, Bremen, Germany) with collision cell technology.
For feeding of liquid samples an autosampler ASX 520 (Fa. Teledyne CETAC, Omaha, USA) is available.
For the direct analysis of solid samples a 213 nm Nd:YAG laser ablation system LSX-213G2+ (Teledyne CETAC, Omaha, USA) can be coupled. Sample chambers with 52 mm diameter (height 50 mm) and 102 mm diameter (height 50 mm) are available.
Liquid samples (a volume of at least 5 mL is required, if less volume is available please contact Dirk Merten in advance) must be free of particles (filtration < 0.45μm or suitable centrifugation).
Subsequent to filtration samples must be acidified to pH<2 using HNO3. Samples must delivered with a list of electrical conductivities prior to acidification. If samples originate from extractions or the digestion of solid samples the used weight of the solid samples and the volume, concentration and kind of extracting solutions have to be delivered.
Sample preparation of solid samples for the spatially resolved anaylsis by LA-ICP-MS have to be discussed with Arno Märten in advance.