FLUORESCENCE ANALYSERS

Bibliography

Information

Contacts

Fluorescence

Chlorophyll Fluorometer - WAL-IMAGING

The WAL-IMAGING is a highly compact device for measuring images of photosynthetic activity of leaves and other photosynthetical active organisms. Saturation pulse quenching analysis can be applied in a very similar way as with standard PAM Fluorometers. It is particulary useful in the detection of heterogeneities, as caused by infections, local stress and mutations. Various versions will be available for the investigation of areas ranging from 1cm² to 8x12 cm micro titer plate format.

Pulse-amplitude modulation for measurements in ambient light,

Images of F_o, F_m, F,F_m', DF/F_m', NPQ, absorbed PAR and relative rate of photosynthesis,

Induction Curves and Light Response Curves for selected areas of interest,

Digitization within camera; no frame grabber required; rapid data transfer via Firewire-port.

IMAG-MIC Micro Measuring Head

The Micro Measuring Head IMAG-MIC was developed for the study of small size samples or small areas of interest in larger objects. Areas of 3.5 x 4.5 mm are imaged, corresponding to approximately 40-fold magnification on the PC Monitor Screen. Details down to 100 µm can be resolved.

Extremely compact design,

Directly mounted on top of CDD Camera,

No separate stand required,

Integrate blue LED lamp,

Illumination via objective lens.

Underwater Fluorometer - WAL-DIVING

The WAL-DIVING Underwater Fluorometer is a worldwide unique instrument for studying in situ photosynthesis in underwater plants, including macroalgae, sea grasses and corals. It opens the way for a profound analysis of these organisms under natural conditions.

Safe operation down to 50 m depth,

Special Windows-software provided for data analysis,

Wide spectrum of chlorophyll fluorescence quenching analysis,

Automized recordings of light response curves,

Integrated water temperature and depth sensors,

External fiber quantum sensor.

Dual-Channel Yield Analyzer - WAL-TOXY

The WAL-ToxY is a highly specialized chlorophyll fluorometer designed to detect very small differences in the effective quantum yield (Y) between two photosynthetically active samples. Displaying a detection limit equivalent to ca. 0.02 µg Diuron/l, it is exceptionally well suited for detecting toxic substances in water samples(e.g. drinking water and water used in food industry). Due to the dual-channel measuring principle and the outstanding precision with which the ToxY-PAM determines the effective quantum yield of PS II, it can also serve as a valuable tool in applied photosynthesis research, particularly with respect to the effect of various stress treatments.

Highly accurate determination of effective quantum yield (Y),

Assessment of inhibition with respect to reference sample,

Optimal results using dilute suspensions at 0.5-1 µg chl/ml,

Toxicity bioassay in conjunction with standardized suspensions of thylakoids or unicellular algae,

Dedicated Windows-software ToxyWin,

Easy to handle with stand-alone or PC operation.

Chlorophyll Fluorometer - WAL-MICROSCOPY

The WAL-MICROSCOPY enables the full spectrum of chlorophyll fluorescence quenching analysis at the single cell level. Its operation is based on the PAM-CONTROL unit, which can be also used in conjunction with the WAL-WATER and the WAL-MICROFIBER. The same WinControl software is used as with the WAL-DIVING.

Detailed fluorescence quenching analysis at the level of single cells and even single chloroplasts,

Excellent signal/noise ratio with standard Epifluorescence Microscope (model H600 AFL, Hund),

Special adapter set for microscopes of Zeiss Axio-series,

Stand-alone or operation via PC using dedicated WinControl Software.

Chlorophyll Fluorometer - WAL-WATER

While the standard version of the WAL-WATER employs red LEDs for measuring and actinic light, very recently a "blue version" of the WAL-WATER has been developped which compared to the red version displays several-fold increased sensitivity with diatoms, dinoflagellates and green algae. On the other hand, this unit is distinctly less sensitive with cyanobacteria. A special fiberoptics version (WAL-WATEREDF) is available which is suited for periphyton and microphytobenthos investigations.

Extreme sensitivity: Detection limit below 0.1 µg chlorophyll/liter,

Stand-alone or PC operation using dedicated WinControl-Software,

Detailed fluorescence information based on fluorescence quenching analysis,

Automated recordings of Light Response Curves and chart recordings of Induction Curves,

Far-red light for preferential PS I excitation,

Continuous flow through special Emitter-Detector is now available for WATER PAM. Please contact us for more information.

Chlorophyll Fluorometer - WAL-PHYTO

The WAL-PHYTO is a 4-wavelength chlorophyll fluorometer which can differentiate between the contributions of green algae, diatoms and cyanobacteria. It not only measures chlorophyll content, but also photosynthetic performance by assessment of quantum yields, relative electron transport rates and light response curves. While the standard version based on a modular Optical Unit is designed for laboratory work, the new emitter-detector units feature a highly compact design well-suited for field and on deck work.

Differentiating between green algae, diatoms and cyanobacteria,

Measuring the concentration of active chlorophyll down to 0.1µg Chl/l for standard version, 0.5 µg Ch/l for compact version,

Assessment of effective quantum yield and relative electron transport rate,

Automatized recordings of light response curves of Yield and ETR,

PhytoWin Software for system control, data acquisition and analysis via PC,

Emitter-detector unit featuring fiber optics (WAL-PHYTOEDF) is available for periphyton and µphytobenthons measurements.

Chlorophyll Fluorometer - WAL-TEACH

The WAL-TEACH fluorometer is an extremely miniaturized PAM fluorometer for photosynthesis research and practical teaching. It can be used through a PC via a complete software provided with the instrument. For field measurements it features LC-display, keypad and data logger to allow independence from PC (special Windows-software, Trans210, is provided for data transfer to a PC at a later stage).

This instrument has proven its high efficiency for practical teaching in universities : easy to operate, robust and reliable. The software allows works on different levels of complexity from very simple actions to sophisticated fluorescence quenching analysis. A booklet for students is provided which outlines the principles of chlorophyll fluorescence measurements and describes a number of informative experiments.

Miniaturized low-cost version PAM fluorometer,

Unique optical design for high quality measurements using leaves or suspensions,

Excellent signal/noise ratio with small sample sizes,

Optional miniature fiberoptics and leaf clip for on-site measurements,

Full spectrum of sophisticated fluorescence quenching analysis,

Alternatively PC- or stand-alone operation, featuring LC-display, keypad and data logger,

Booklet with simple intriductory experiments for teaching courses.

.................................