Any combination of a cation associated with molecules or anions containing unshared pairs of electrons. The interaction can range from purely electrostatic to that approaching covalent character.

With respect to a complex we further define:

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

Instrument database: Thermo Finnigan - Surveyor Plus HPLC System
Enhanced level of toxic methylmercury in the aquatic environment caused by hydroelectric dams | EVISA's News
Company database: Matheson Tri-Gas
Instrument database: Helmut Fischer GmbH + Co.KG - FISCHERSCOPE® X-RAY
Journals database: Soil Systems
Instrument database: Shimadzu Europe - GCMS-QP2010 Plus
Instrument database: Flux Instruments GmbH & CO KG - Rheos HR
Instrument database: GERSTEL GmbH & Co.KG - Automated Solid Phase Extraction (SPE)
Instrument database: Thermo Scientific - Accela High Speed LC
Instrument database: Thermo Scientific - Thermo Scientific - Dionex™ ICS-6000 Standard Bore and Microbore System
Tribute to Jacques Buffle: founding father of dynamic metal speciation analysis | EVISA's News
Journals database: Progress in Lipid Research
Instrument database: Australian Scientific Instruments Pty. Ltd. - SHRIMP IIe and SHRIMP V
PLSG Invests $100,000 in Applied Isotope Technologies, Inc., for Development of New Technologies for Environmental and Biological Analyses | EVISA's News
Analytical Forum 2004 | EVISA's Agenda of Events
Instrument database: Thermo Scientific - iCAP 6300 - ICP-OES CID Spectrometer
Instrument database: CETAC Technologies - Solis-500 Solids Introduction System
Journals database: Berichte der Bunsen-Gesellschaft für Physikalische Chemie
Instrument database: Kratos Analytical - AXIMA CFR plus MALDI TOF Mass Spectrometer
Council Decision 77/586/EEC on the River Rhine | EVISA's News