Durham tube

Durham tube
Durham tube
Uses Gas detection
Related items Test tube

Durham tubes are used in microbiology to detect production of gas by microorganisms. They are simply smaller test tubes inserted upside down in another test tube. This small tube is initially filled with the solution in which the microorganism is to be grown. If gas is produced after inoculation and incubation, a visible gas bubble will be trapped inside the small tube. The initial air gap produced when the tube is inserted upside down is lost during sterilization, usually performed at 121°C for 15 or so minutes.



Wikimedia Foundation. 2010.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • Durham tube — 1. [Arthur Edward Durham] a jointed tracheostomy tube. 2. [Herbert Edward Durham] a small inverted test tube used in determining bacterial gas production …   Medical dictionary

  • Tube — A long hollow cylinder. There are many tube like structures in the human body, such as the auditory tube (Eustachian tube) in the ear. * * * 1. A hollow cylindrical structure or canal. 2. A hollow cylinder or pipe. SYN: tuba [TA]. [L. tubus]… …   Medical dictionary

  • Durham tube1 — Dur·ham tube1 (d rґəm) [Arthur Edward Durham, English surgeon, 1834–1895.] see under tube …   Medical dictionary

  • Durham tube2 — Dur·ham tube2 (d rґəm) [Herbert Edward Durham, English bacteriologist, 1866–1945] see under tube …   Medical dictionary

  • Durham — Arthur E., English surgeon, 1834–1895. See D. tube …   Medical dictionary

  • Cal Durham — Supersupportingbox| caption=Cal Durham and Aquaman, art by Dick Giordano character name=Cal Durham publisher=DC Comics debut= Adventure Comics #452 (July 1977) creators=David Micheline Jim Aparo real name =Cal Durham species = homeworld = Sub… …   Wikipedia

  • A1 broth — An A1 broth is a liquid culture medium used in microbiology for the detection of fecal coliforms in foods, treated wastewater and seawater bays using the most probable number (MPN) method. It is prepared according to the formulation of Andrews… …   Wikipedia

  • Tyne Tees Television — Tyne Tees redirects here. For the football derby between Newcastle United F.C. and Middlesbrough F.C., see Tyne Tees derby. Tyne Tees Television The design of the current logo is generic to the ITV network. Based in Gateshead (pre …   Wikipedia

  • Henry Doorly Zoo — Omaha s Henry Doorly Zoo Sign at the main entrance Date opened 1894 as Riverview Park Zoo Location Omaha, Nebraska, USA Land area Over 130 acres (53 …   Wikipedia

  • Life Sciences — ▪ 2009 Introduction Zoology       In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …   Universalium

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”