The G112 Flow-through Leaf Chamber may be used for open flow measurements of photosynthetic carbon dioxide exchange and is supplied as part of the Plant CO2 Analysis Packages (CO500, CO500-FCM, CO650, CO650-FCM)

The leaf chamber consists of 2 pieces of Lexan bolted together and separated by gas-tight neoprene gaskets. Spacers placed on the bolts prevent the neoprene from being over-compressed, and also ensure that the chamber has a fixed inner volume.

Gas is supplied to the the G112 Flow -through Leaf Chamberr via tubing that branches into 2 gas inlet ports; one positioned to the side of the upper chamber lid, and the other to the side of the lower chamber lid. Gas passes from these ports into a manifold that directs it through small holes across the upper and lower surface of the leaf. This creates a turbulent flow that minimizes leaf boundary layer resistance. Gas leaves the chamber via small holes in the side of the chamber opposite the gas entry point. The gas enters a manifold in the upper and lower lids of the chamber, and passes from these into tubing that carries it to the drying column and the gas analyzer.

The G112 Leaf Chamber may be fitted with Qubit’s S171 Leaf Temperature Thermistor to measure temperature throughout an experiment. Note that the temperature is only monitored and that it is not controlled. Care should be taken concerning the radiant heat load on the leaf while it is in the chamber, particularly when using the halogen light.

Specifications:

• size (h/w/l) cm: 3.0/5.3/25.5
• weight (g): 400
• volume: 9 ml
• materials: Lexan, steel, velcro
• warranty: 1 year

The G111 Closed System Leaf Chamber is supplied as part of the PH1LP Photosynthesis Package. The leaf chamber consists of two pieces of Lexan bolted together and separated by gas-tight neoprene gaskets. Spacers placed on the bolts prevent the neoprene from being over-compressed, and also ensure that the chamber has a fixed inner volume. To prevent gas leakage into and out of the chamber, the neoprene gaskets should be coated with a very thin layer of the vacuum grease that is supplied with the package.

As part of PH1LP Photosynthesis Package G111 Closed System Leaf Chamber is supplied  with the gas port fittings, and the O2 sensor, incorporated into the upper lid of the leaf chamber.  These are attached securely to the Plexiglas, and the chamber is designed to provide years of trouble-free service. However, it should be noted that excessively rough handling of the chamber could cause components to break off, or to create cracks in the Plexiglas. The chamber should therefore be handled with care at all times.

The G104 Arabidopsis Leaf Chamber consists of 2 pieces of Plexiglas bolted together and separated by gas-tight neoprene gaskets. Spacers placed on the bolts prevent the neoprene from being over-compressed, and also ensure that the chamber has a fixed inner volume.

Specifications:

• size (h/w/l) cm: 3.0/3.5/20.0
• volume: 3ml
• weight (g): 270
• materials: steel and plexiglass
• warranty: 2 years

The G104 Arabidopsis Leaf Chamber encloses a 3 cm² area of an attached or detached arabidopsis leaf, or the leaf of any other small plant.

Gas is supplied to the chamber via tubing that branches into 2 gas inlet ports; one positioned to the side of the upper chamber lid, and the other to the side of the lower chamber lid. Gas passes from these ports into a manifold that directs it through small holes across the upper and lower surface of the leaf. This creates a turbulent flow that minimizes leaf boundary layer resistance. Gas leaves the chamber via small holes in the side of the chamber opposite the gas entry point. The gas enters a manifold in the upper and lower lids of the chamber, and passes from these into tubing that carries it to the drying column and the IRGA.

The G104 leaf chamber may be fitted with Qubit’s S171 Leaf Temperature Thermistor to measure temperature throughout an experiment. Note that the temperature is only monitored and that it is not controlled. Care should be taken concerning the radiant heat load on the leaf while it is in the chamber, particularly when using the halogen light.