Description
Hills-Scientific is pleased to offer the Fast Isoprene Sensor (FIS) to the research community. Fast Isoprene Sensors in use worldwide provide continuous isoprene monitoring from <1 ppb in atmospheric studies to ppm levels in biological and medical research.
The sensors are used in chamber and cuvette studies as continuous monitors supporting fundamental photosynthetic and process research. They routinely measure atmospheric isoprene and have been used for many years in eddy-covariance flux studies.
The FIS is based on chemiluminescence. Isoprene/ozone chemiluminescence measurement is extremely sensitive as the reaction has a high quantum efficiency for light production in addition to the light appearing on a near-zero background and since single-photon counting detection is used in all our instruments.
Custom LabVIEW software controls the photon counting and displays the chemiluminescence signal and isoprene concentration (ppb) in real-time as well as archiving the data. The FIS signal is linear over all typical measurement regimes (4 orders-of-magnitude concentration range) allowing simple data interpretation and easy one or two point calibration.
A microprocessor controller automatically zeros and calibrates the instrument on a user defined schedule using ultra-clean pneumatically controlled valving. Electronic mass-flow controllers control all gas flows and monitor reaction cell pressure. Flows, pressure, and instrument status signals are available as outputs.
The instruments are designed using 3-D CAD and housed in custom 6061 chassis boxes which are fabricated to mil-spec and powder-coated. Graphics are then silk screened on using epoxy paint. In short, every detail of the Fast Isoprene Sensor is designed to deliver high performance in a bombproof and easy to service instrument. --We build them to last a lifetime--