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:

Journals database: Toxicology and Industrial Health
Journals database: Journal of Food Safety
Instrument database: Analytik Jena GmbH - novAA 400
Instrument database: Ohaus Corporation - Voyager® Pro Analytical Balances
Instrument database: Varian Inc. - Vista MPX Simultaneous ICP-OES
Instrument database: Shimadzu Europe - Nexera-e - Comprehensive Two-Dimensional Liquid Chromatograph
Instrument database: Bruker Daltonics - micrOTOF - benchtop ESI-TOF MS
4th Workshop on Field-Flow Fractionation – Mass Spectrometry (FFF-MS) | EVISA's Agenda of Events
Instrument database: Scinco Co. Ltd - STA S-650/1000/1500
Instrument database: Millbrook Imstruments Limited - Millbrock MiniSIMS
Company database: Food and Environment Research Agency (FERA)
Instrument database: Bruker Daltonics - apex-ultra - Hybrid Qq-FTMS
Link database: Geochemical Modeling - Chemical Speciation
Experts in Speciation Analysis came together in Münster, September 4-7, 2007 | EVISA's News
Instrument database: Varian Inc. - 820-MS
Int. Workshop on Harmonization of Mercury Measurements Methods and Models to Assess Source-Receptor Impact on Air Quality and Human Health | EVISA's Agenda of Events
Instrument database: Inficon - Scentograph CMS100
Instrument database: Applied Biosystems - Voyager-DE™ STR Biospectrometry Workstation
Link database: Aluminum Geochemistry Eh-pH, pe-pH diagrams and Solubility
Instrument database: Applied Spectra - Aurora LIBS Spectrometer