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Quality Instrumentation for the Life Sciences

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Online Analyzers

Get to know your water… with bbe Moldaenke

For more than 10 years now, bbe Moldaenke GmbH has been one of the leading manufacturers of top-quality products in environmental technology. bbe develops and produces measuring instruments and software to assess and manage water quality. Their instruments are made for use in oceanography, limnology, drinking water monitoring, river dam monitoring, bathing water analysis, supervision of aqua culture systems and environmental assessment. To learn more about these products and to determine which instrument best suits your application, please get in contact with PP Systems to speak to a products specialist. We look forward to being of assistance.

Algae On-Line Analyzer

Algae On-Line Analyzer from bbe Moldaenke

Chlorophyll, algae class and photosynthetic activity-continuous determination in real time

Applications

  • Regulatory control
  • Environmental monitoring
  • Limnological work
  • Research and education
  • Supervision of aquaculture

The fluorescence of algae via excitation by visible light mainly depends on the chlorophyll-a, a common pigment in the plant world. The presence of other pigments indicates different algae classes. The interaction of these different pigments with chlorophyll-a results in a special excitation spectrum for taxonomic algae classes.

The special patterns of this algal fluorescence – so-called fingerprints – are used in bbe fluorometers for the qualification of different algae classes. The light sources for the excitation are LEDs with selected wavelengths. The fingerprints of four algae classes and for yellow substances are pre-defined in the instrument. However, user-specific fingerprints can also be defined.

The physiological performance of the algae (algae activity) on photosynthesis is determined by exitation using additional background light. The resulting variable fluorescence allows the calculation of algae activity given as the Genty parameter. This Genty parameter represents the quantum yield and is also an expression of the vitality of the algae.

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Product Features

  • Online chlorophyll analysis for measuring stations as well as for laboratory use
  • Simultaneous determination of chlorophyll concentration, photosynthetic activity of chlorophyll and transmission
  • Determination of different algae classes by excitation using coloured LEDs; calculation of the content of green algae, blue-green algae (cyanobacteria), brown algae (diatoms and dinoflagellates) and cryptophytes
  • Direct measurement without sample preparation by filtration or dilution.
  • Information on the photosynthetic activity of chlorophyll due to different patterns of excitation, correlated to oxygen evolution; the commonly used fluorescence signals f0, f, fm are used for calculation according to the Genty parameter method
  • Yellow substances measurement (CDOM) to correct the calculation of the content of chlorophyll
  • Integrated cleaning unit in the sensor –  prevents growth of biofilms during prolonged measurements
  • Batch mode:
    instrument can be switched from flow-through measurement to single measurement mode for laboratory operation

AlgaeGuard

AlgaeGuard from bbe Moldaenke

Continuous, cost-effective chlorophyll analysis with cleaning device. Detection of green algae, cyanobacteria, diatoms and cryptophyceae

Applications

  • Power plants
  • Drinking water monitoring stations
  • Lake and river analysis
  • Environmental monitoring
  • Research and education

The AlgaeGuard is designed as a “plug and play” instrument, i.e. measurements are carried out automatically using pre-defined parameter settings immediately after boot-up or by pressing the start button on the touchscreen panel.  Continuous configuration by the operator is not necessary. Maintenance is as low as 1 hour per month.  Parameters can be changed using the external bbe PC software if necessary.

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Product Features

  • Quick, simple chlorophyll determination with algae class analysis
  • Direct measurement without sample preparation
  • Simple operation and virtually maintenance-free
  • Different communication ports, also in an industrial setting:
    • up to 8 alarm outputs (potential-free contacts)
    • up to 16 analog outputs (4-20mA)
    • serial interface for data transfer
    • USB port for simple firmware updates
  • Integrated cleaning unit in measuring chamber prevents biofouling
  • Touchscreen display
  • PC operation with bbe AOA software

Algae Lab Analyzer

Algae Lab Analyzer from bbe Moldaenke

An instrument for chlorophyll and photosynthetic activity measurement in the laboratory

Applications

  • Waterway analysis and assessment
  • General environmental management
  • Intake monitoring
  • Chemical analysis
  • Toxicity testing
  • Waste detection
  • Dam monitoring
  • Limnological work
  • Research and education

The fluorescence of algae via excitation with visible light mainly depends on the chlorophyll-a, a pigent wide-spread in the plant world.  The presence of other pigments is typical for different algae classes.  The interaction of these different pigments systems with chlorophyll-a result in a special excitation spectrum for taxonomic algae classes.

The special patterns of algal fluorescence – so-called fingerprints – are used in bbe fluorometers for the qualification of different algae classes. The light sources for the excitation are LEDs with selected wavelengths. The fingerprints of four algae classes and for yellow substances are pre-defined in the instrument. However, special user-specific fingerprints can also be defined.  The determination of algal activity (Genty parameter) is performed using additional background light.

Data SheetRequest a Quote

Product Features

  • Simultaneous determination of chlorophyll concentrations, photosynthetic activity of chlorophyll and transmission
  • The detection of different algae classes via excitation using different coloured LEDs; calculation of biomass on green algae, blue-green algae, brown algae (diatoms and dinoflagellates) and cryptophytes
  • Direct measurement without sample preparation via filtration, dilution or stirring etc.
  • Results of photosynthetic activity of the chorophyll usng different excitation patterns; the common fluorescence signals  are used via the Genty parameter method
  • Yellow substances (CDOM) measurement to correct the calculation of total chlorophyll
  • Integrated stirrer unit – no problems with sedimentation during long-term measurements