Organic
Dissolved organic substances are an important component of surface waters. They are either introduced from external sources or are formed directly in the water body as a metabolic and degradation product of plants and animals. In the water body they influence the light distribution in water bodies, bind trace metals or serve as food for microorganisms. A characterization of dissolved organic components thus allows a general characterization of the carbon cycle in water bodies and serves as an important parameter in water quality monitoring.
We analyze yellow matter (CDOM) in your samples by its fluorescence. Furthermore, we can determine organic tracers such as fluorescine and rhodamine. By means of sensor systems we can directly measure yellow substance content as well as chlorophylla and photosynthetically active radiation directly in the water.
We are happy to advise you regarding your samples.
Method | Measuring range | Device |
Fluorescence spectroscopy | Fluorescence: Excitation: 210-630nm Emission: 210-620nm Absorption: Scan range: 230-800nm | Aqualog, Horiba Scientific |
Sensor systems | Detected parameters | Range of application |
BIOFISH Towing system | Depth T, LF, O2, pH value Turbidity CDOM, Chla photosynthetically active radiation | With boat at v < 10km/h and depths < 120 m direct visualization of recorded data water sampling (5x50 mL) by integrated, remote controlled sampling system |
BIOLIFT Buoy | Depth T, LF, O2, pH value Turbidity CDOM, Chla photosynthetically active radiation | vertical profiling up to 10 m depth water sampling system (8x50 mL) Recording of meteorological parameters Long-term use |