In trace analysis, this is the unintentional introduction of analyte(s) or other species which are not present in the original sample and which may cause an error in the determination. It can occur at any stage in the analysis. Quality assurance procedures, such as analyses of blanks or of reference
materials, are used to check for contamination problems.

The term "contamination" was found in the following pages:

Component database: Glass Expansion - TruFlo Sample Monitor
Instrument database: Hewlett-Packard - HP 6890 GC System
Mercury in Fish: Groups Sue FDA for Seafood Health Information | EVISA's News
New CDC study on the effect of thimerosal exposure on neuropsychological characteristics of children is fueling the debate about the origin of autism | EVISA's News
22nd Annual International Conference on Soils, Sediments & Water | EVISA's Agenda of Events
Call for Papers: 6th SETAC World Congress 2012 - SETAC Europe 22nd Annual Meeting | EVISA's News
Instrument database: KONIK INSTRUMENTS INC. - MS Q 12C
Sample preservation for speciation analysis - General recommendations | EVISA's News
27 SETAC Annual Meeting | EVISA's Agenda of Events
Instrument database: CETAC Technologies - ASX-100 Micro Autosampler
Instrument database: CAMECA SAS - IMS Wf
Is the methylmercury paradox real ? | EVISA's News
Instrument database: Elemental Scientific Inc. (ESI) - SC-Micro Autosampler
Link database: Blacksmith Institute: Artisanal Gold Mining - Mercury Pollution
Books on Speciation Analysis published before 1995 | EVISA's News
Instrument database: PerkinElmer Inc. - Pyris 6 DSC
Instrument database: Claisse, Inc - The Bee-Electric Fluxer
Instrument database: Buck Scientific - BLC-10 Isocratic HPLC System
Mercury "speciation analysis" by using thermal desorption analysis | EVISA's News
Instrument database: Lauda Dr. R. Wobser GmbH & Co. KG - LAUDA Aqualine AL 25 Heateed water bath