contamination free

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• Free Base — Pour les articles homonymes, voir Freebase. La free base (de l anglais « base libre ») est une technique concernant l utilisation de substances psychotropes sous leur forme basique par opposition à la forme salifiée. Elle consiste à… …   Wikipédia en Français

• free — ▪ I. free free 1 [friː] adjective 1. costing nothing: • First class passengers will have four films to choose from, all of them free. • Like pizza, Chinese food is more expensive than hamburgers and can bear the cost of free delivery. • In order… …   Financial and business terms

• Free base — Pour les articles homonymes, voir Freebase. Free base (de l anglais « base libre ») réfère à la forme pure, basique d une amine, souvent un alcaloïde naturel, par opposition à ces formes salifiées comme par exemple le chlorhydrate. Un… …   Wikipédia en Français

• Soil contamination — Excavation showing soil contamination at a disused gasworks. Soil contamination or soil pollution is caused by the presence of xenobiotic (human made) chemicals or other alteration in the natural soil environment. This type of contamination… …   Wikipedia

• Gluten-free diet — A gluten free diet is recommended amongst other things in the treatment of coeliac disease and wheat allergy. It is a diet completely free of ingredients derived from gluten containing cereals: wheat (including kamut and spelt), barley, rye, and… …   Wikipedia

• Air-free technique — Air free techniques refer to a range of manipulations in the chemistry laboratory for the handling of compounds that are air sensitive. These techniques prevent the compounds from reacting with components of air, usually water and oxygen; less… …   Wikipedia

• Spin contamination — In computational chemistry, spin contamination is the artificial mixing of different electronic spin states. This can occur when an approximate orbital based wave function is represented in an unrestricted form – that is, when the spatial parts… …   Wikipedia

• Forward-contamination — is the contamination of other worlds with Earth microbes. The risk of forward contamination is twofold: that human beings may accidentally seed a previously sterile world, thus creating extraterrestrials that are really of terrestrial origin (and …   Wikipedia

• Oxygen-free copper — The CuOFP capsule used as overpack for spent nuclear fuel disposal in the KBS 3 concept (Finnish version) Oxygen free copper (OFC) or Oxygen free high thermal conductivity (OFHC) copper generally refers to a group of wrought high conductivity… …   Wikipedia

• Cell-free protein array — technology produces protein microarrays by performing in vitro synthesis of the target proteins from their DNA templates. This method of synthesizing protein microarrays overcomes the many obstacles and challenges faced by traditional methods of… …   Wikipedia

• Nuclear-Free Future Award — Since 1998 the Nuclear Free Future Award (NFFA) is an award given to anti nuclear activists, organizations and communities. The award is intended to promote the opposition to uranium mining, nuclear weapons and nuclear power.[1] The NFFA is a… …   Wikipedia