Double-Modulation Fluorometer FL 6000 measures chlorophyll α ﬂuorescence. Measured ﬂuorescence emission is excited by a set of light-emitting diodes that generate measuring ﬂashes of few microseconds in duration and low light intensity; the photochemistry is driven by single-turnover ﬂashes or by continuous actinic irradiance. Chlorophyll α ﬂuorescence is detected by a PIN photodiode and digitized by a 16-bit A/D converter.
The fast version of FL 6000-F allows measuring Flash Fluorescence Induction (FFI) experiments which leads to a calculation of the effective antenna size, antenna connectivity and rapid lights curves. The major feature of this ﬂuorometer is the capacity of the instrument to generate rectangular actinic ﬂashes of extremely high power also with 620 nm excitation light source. This feature is helpful for cyanobacteria measurements. Full reduction of QA acceptor can be achieved within 25 µs and the instrument can measure ﬂuorescence induction during such a single-turnover saturating ﬂash. This technique is used to determine the effective antenna size of the Photosystem II as well as its heterogeneity and connectivity without disturbing the measured system by DCMU or other herbicides.
Photosynthetically active samples, either suspensions, leaves, or even corals, can be investigated for their photochemical yields, quenching parameters, state transitions, or for the kinetics of photosynthetic redox reactions. The FL 6000 has two input channels. First channel is used for Chlα-ﬂuorescence measurements. The second channel can be optionally used for temperature reading or dissolved oxygen probe signal measurements. FAR-LED unit with 735 nm LEDs can be optionally connected to the SuperHead measuring unit.
|Fast Fluorometer FL 6000-F||Includes measuring optical head with a cuvette, multipurpose control unit, power supply, FluorWin software, user’s guide.||9,990 €|
|Standard Fluorometer FL 6000-S||Includes measuring optical head with a cuvette, multipurpose control unit, power supply, FluorWin software, user’s guide.||8,490 €|
|Additional measuring unit||This measuring unit can be constructed with respect to customer's experimental needs: specific LED colors (Blue, Cyan, Amber) and detection bands (ChlA, ChlB).||3,490 €|
|Infra-Red LED Unit||Allows measuring F0' and PAR absorbance||1,490 €|
|Magnetic Stirrer||For uniform sample stirring. Two stirring bars are included in the price.||998 €|
|Oxygen detector convertor||Serves for oxygen evolution detection based on dynamic quenching of fluorescence (no electrode included).||1,550 €|
|Oxygen Electrode *||Probe for oxygen detector module.||690 €|
|PC with Preinstalled Control Software *||Notebook PC with preinstalled software.||390 €|
|Thermoregulator TR 6000||Precise temperature control of liquid sample. Temperature range
from 5 °C to +60 °C.