A gas syringe is a piece of laboratory glassware used to insert or withdraw a volume of a gas from a closed system, or to measure the volume of gas evolved from a chemical reaction.[1] A gas syringe can also be used to measure and dispense liquids, especially where these liquids need to be kept free from air.[2]
A gas syringe has an inner syringe chamber which has a ground glass surface. The syringe barrel also has a ground glass surface. The ground surface of the barrel moves freely within the ground glass surface of the syringe chamber with very little friction. The close mating of these ground glass surfaces also gives a reasonably gas-tight seal.[3] Like a ground glass stopcock, the two parts of a gas syringe should preferably not be interchanged with another gas syringe of the same volume, unless told otherwise by the distributor.[3] Gas syringes come in various sizes from 500 ml to 0.25 ml and tend to be accurate to between 0.01 and 1 ml, depending on the size of the syringe.[4]
^Mattson, Bruce. Microscale Gas Chemistry: Determination of the Molar Mass of Gas. Microscale Gas Chemistry. Bruce Mattson, 15 Mar. 2010. Web. 17 Nov. 2011. <http://www.hkbu.edu.hk/~micschem/emanual/Expt%205-Molar_Volume%20final-english.pdf[permanent dead link]>.
^UCLA, comp. Procedures for Safe Use of Pyrophoric Liquid Reagents. Procedures for Safe Use of Pyrophoric Liquid Reagents. UCLA Chemistry & Biochemistry, Sept. 2009. Web. 17 Nov. 2011. <http://www.chemistry.ucla.edu/file-storage/publicview/pdfs/SOPLiquidReagents.pdf Archived 2012-04-25 at the Wayback Machine>.
A gassyringe is a piece of laboratory glassware used to insert or withdraw a volume of a gas from a closed system, or to measure the volume of gas evolved...
allowing the syringe to take in and expel liquid or gas through a discharge orifice at the front (open) end of the tube. The open end of the syringe may be...
glass syringes used for blood gas samples. Most syringes come pre-packaged and contain a small amount of heparin, to prevent coagulation. Other syringes may...
air gas burner used as laboratory equipment; it produces a single open gas flame, and is used for heating, sterilization, and combustion. The gas can...
plastic and their bulb can serve as the liquid-holding chamber. Pipetting syringes are hand-held devices that combine the functions of volumetric (bulb) pipettes...
rapid injection into the muscles of the thigh. In a developed case of nerve-gas poisoning, maximum atropinization is desirable. Atropine is often used in...
small chamber via a syringe through a septum – the heat facilitates volatilization of the sample and sample matrix. The carrier gas then either sweeps...
burette delivers measured volumes of liquid. Piston burettes are similar to syringes, but with a precision bore and a plunger. Piston burettes may be manually...
This is heated to about 900 °C, the zinc oxide vaporizes into a gas, and the zinc gas bonds with the molten copper. This reaction has to take place in...
in cell culture are sterilized and may feature vented closures to enhance gas exchange during incubation and shaking. The use of minimal liquid volumes...
cylinder Ostwald viscometer Pipette Tubes Drying Cragie Nuclear magnetic resonance (NMR) Test Thiele Thistle Other items Beaker Bell jar Gassyringe Vial...
An Orsat gas analyser or Orsat apparatus is a piece of laboratory equipment used to analyse a gas sample (typically fossil fuel flue gas) for its oxygen...
end of test tubes when they are heated, as there is no room for bubbles of gas to escape independently of the surrounding liquid. This phenomenon is called...
of solutions, transparent or opaque solids, such as polished glass, or gases. Although many biochemicals are colored, as in, they absorb visible light...
over Bunsen burners for safety purposes, and in laboratories where natural gas is not available. Their flame is limited to approximately 5 centimeters (two...
cylinder Ostwald viscometer Pipette Tubes Drying Cragie Nuclear magnetic resonance (NMR) Test Thiele Thistle Other items Beaker Bell jar Gassyringe Vial...
cylinder Ostwald viscometer Pipette Tubes Drying Cragie Nuclear magnetic resonance (NMR) Test Thiele Thistle Other items Beaker Bell jar Gassyringe Vial...
replacement of HEPA filters, it must be gas decontaminated. Gas decontamination involves filling the BSC with a poisonous gas, most commonly formaldehyde.: 25 ...
cylinder Ostwald viscometer Pipette Tubes Drying Cragie Nuclear magnetic resonance (NMR) Test Thiele Thistle Other items Beaker Bell jar Gassyringe Vial...
cylinder Ostwald viscometer Pipette Tubes Drying Cragie Nuclear magnetic resonance (NMR) Test Thiele Thistle Other items Beaker Bell jar Gassyringe Vial...
cylinder Ostwald viscometer Pipette Tubes Drying Cragie Nuclear magnetic resonance (NMR) Test Thiele Thistle Other items Beaker Bell jar Gassyringe Vial...
cylinder Ostwald viscometer Pipette Tubes Drying Cragie Nuclear magnetic resonance (NMR) Test Thiele Thistle Other items Beaker Bell jar Gassyringe Vial...
cylinder Ostwald viscometer Pipette Tubes Drying Cragie Nuclear magnetic resonance (NMR) Test Thiele Thistle Other items Beaker Bell jar Gassyringe Vial...
washer/gasket in the neck. The bottles were filled upside down, and pressure of the gas in the bottle forced the marble against the washer, sealing in the carbonation...
cylinder Ostwald viscometer Pipette Tubes Drying Cragie Nuclear magnetic resonance (NMR) Test Thiele Thistle Other items Beaker Bell jar Gassyringe Vial...
design of dewars to safely manage the gas which is released as the liquid slowly boils. The simplest dewars allow the gas to escape either through an open...