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:

Instrument database: Analytik Jena AG - novAA® 400 P - fully automated AAS spectrometer
Instrument database: Physical Electronics - TRIFT IV TOF-SIMS
High Levels of Arsenic in American Wines | EVISA's News
Arctic Mercury Cycling May Be Linked to Ice Cover | EVISA's News
Component database: Glass Expansion - TruFlo Sample Monitor
EPA Study: Mercury Levels in Women of Childbearing Age Drop 34 Percent | EVISA's News
Instrument database: ANALAB SARL - EVAPOCLEAN 12 x 125 ml
Source for butyltin compounds in wine | EVISA's News
Directory of scientists: Zuzana Gajdosechova
Link database: CBI: Germany legislation: Chromium in leather and textile products (additional requirements)
Material database: Institute of Nuclear Chemistry and Technology (INCT/ICHTJ) - CTA-OTL-1 ORIENTAL TOBACCO LEAVES
Tools for elemental speciation
Component database: Glass Expansion - IsoMist XR - programmable temperature controlled cyclonic spray chamber
23nd Annual International Conference on Soils, Sediments & Water | EVISA's Agenda of Events
Instrument database: Elemental Scientific Inc. (ESI) - scoutDX Automated Process Monitoring
Instrument database: Analytik Jena GmbH - novAA 400
Instrument database: Julabo Labortechnik GmbH - F200 Recirculating Cooler
Instrument database: Thermo Scientific - UltiMate™ 3000 BioRS System
Instrument database: Barloworld Scientific - Distinction Water Still
Deemed Essential to Health for Decades, Chromium Has No Nutritional Effect, UA Researchers Show | EVISA's News