Z991 Fluorpen - China

Z991 FluorPen is a chlorophyll fluorescence measuring device for the lab and the field.

This hand-held fluorometer uses high output LEDs to provide a saturating pulse for the measurement of Fv/Fm (QY) and other parameters.

The Z991 FluorPen is an accurate, portable option to bulky fiber optic chlorophyll fluorometers, especially when the user wants to screen a large number of plants for specific fluorescence parameters.

Four different versions of FluorPen are available.

All measure Ft, QY and kinetic responses such as OJIP, NPQ and Light Curve responses of QY, but have either a built in standard leaf clip (Z991) or are adapted to be used with detachable leaf clips (Z991-D).

The Fluorpen can also be purchased with a build in PAR meter for measurements in 400-700nm range (Z991-LM or Z991-LM-D) Ft – continuous fluorescence yield in non-actinic light.

Ft is equivalent to Fo if the leaf sample is dark-adapted.

QY – Photosystem II quantum yield.

In a dark-adapted leaf this is equivalent to Fv/Fm.

In a light-adapted leaf it is equivalent to Fv‘/Fm‘.

OJIP – Chlorophyll Fluorescence Induction Kinetics (fast transient analysis) is a simple and non-invasive tool to monitor chloroplast function.

Provided OJIP analysis is used as sensitive and reliable fast test for the functionality and vitality of photosynthetic system.

NPQ – Non-Photochemical Quenching.

Provided are two predefined NPQ protocols differing in the duration of light exposure and dark recovery phase as well as in the number of intervals between the pulses.

It is typically used for quantification of photochemical and non-photochemical quenching in dark-adapted samples.

Light Curve – Adaptation of Quantum Yield to Several Different Light Levels.

There are three predefined Light Curve protocols based on pulse modulated fluorometry differing in number and duration of single light phases and light intensities.

Light Curve protocols provide successive measurements of the sample photosynthesis under various light intensities of continuous illumination relating the rate of photosynthesis to photon flux density.

Company Contact:

• Posted By: Channel Tech scientific Instruments

• Phone: 15611257114

• Address: Suite 6B13 Huajie Plaza, 13 Dazhongsi, Haidian District, Beijing , BeiJing , China

• Email:

• Website: https://www.channeleco.com

• Business Description: For the purpose of introduction and promotion of global advanced instrumentation and technology in the fields of terrestrial ecology, aquatic ecology and life science