Sensor Sense Ethylene C2H4 Analyzer

Sensor Sense Ethylene C2H4 Analyzer

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Sensor Sense specializes in compact, highly sensitive ethylene detectors. Our user friendly detectors are robust and have a fast response time. This makes them suitable for real time measurements.

On-line and absolute measurements

Detection range 0-5 ppmv

Gas flow rate 0.25-5 l/h

Operating temperature between 10 and 28 C

Low maintenance

Easy to operate

Analog input for logging of external data

User friendly software included

Detected gas: Ethylene (C2H4)

Measurement range: 0 - 5 ppmv

Stability: <1% over 24 hours

Measuremnt time: 5 s

Calibration: annually with calibrated gas mixture

Warmup time: 30 min

Environmental

Airborne measurements

The ETD-300 ethylene detector is suitable for use inside aircraft, being extremely stable in harsh conditions (i.e. excessive vibrations, temperature changes and pressure variations). These unique characteristics were fully exploited during the Texas Air Quality Study (TexAQS II) in 2006 together with NOAA Chemical Sciences Division, Boulder, Colorado in monitoring ethylene emission from industrial sources near Houston. Ethylene is of particular interest since it plays a role in ozone chemistry in the atmosphere.

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Ethylene emission from various sources (blue triangles) measured with ETD-300

Medical

More than 400 volatile organic compounds have been identified in the human breath, some of them possible indicators of various diseases. To detect these diseases in their early stage by means of exhaled breath analysis, we need highly sensitive detectors able to measure volatile organic compounds at picomolar concentrations. In this way, breath analysis may have the chance to become an easy, non-invasive and convenient tool for medical diagnostics.

Breakdown of cell membranes due to lipid peroxidation produces, amongst others, traces ofethylene (C2H4) in exhaled air. In normal situations, free radical formation and radical scavenging are balanced. This balance can be disturbed by e.g. UV-light, trauma, skin diseases excessive work out or pulmonary diseases.

Currently, the ETD-300 ethylene detector is applied to assess the amount of damage to the tissue caused by a number of these processes. The ethylene can be measured either directly from the skin or from exhaled air, from spontaneous breathing people or intubated patients during and post-operation.

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Agriculture

Post-harvest

Post-harvest losses of crops are estimated to be between 25 and 40% worldwide, this demands for optimal storage facilities.lowered temperatures, Today, controlled atmosphere (CA) storage facilities, i.e. storage at low oxygen concentrations and elevated CO2 levels are quite common. Metabolic processes in CA-stored products, like fruits and vegetables, are slowed down and thus ripening and aging are delayed.

Ethylene (C2H4) is an important and sensitive marker for ripening of fruits that can be used to optimize CA conditions and prevent losses. The ETD-300 ethylene detector is currently in use for postharvest research in the Netherlands.

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Industry

Our C2H4 gas detectors can be used in power plants.

Biology

It is a fortunate coincidence that the ubiquitously active plant hormone ethylene (C2H4), is especially easy to detect with the ETD-300 ethylene detector. Ethylene is the only known gaseous plant hormone; it is involved in many aspects of the plant life cycle, as well as in response to external stress. Ethylene is responsible for signaling changes during seed germination, growth, flower and fruit development, senescence of plant organs, programmed cell death, etc. Also dehydration and drought, wounding, heavy metal stress, pathogen attack, interaction with other plant hormones are inducing changes in ethylene production.

The ETD-300 ethylene detector is becoming nowadays a well-established method successfully used in many applications in Life Science where traditional methods, such as gas chromatography, cannot be employed because of lack of sensitivity and time-consuming pre-concentration steps.

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Microbiology

Nitrogen (N2) fixation. Next to photosynthesis, nitrogen fixation ranks among the most vital processes on earth. To investigate the activity of nitrogenase (the enzyme responsible for N2 fixation), the acetylene reduction method is most widely used. A mini incubator in combination with the ETD-300 ethylene detector, allows on-line monitoring of changes in nitrogenase activity with a time resolution of 5 seconds under different oxygen concentrations, light intensity, temperature gradient etc.

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