analytical procedure to increase the concentration of analytes in the analytical solution in comparison with that present in the original sample. The techniques used include cryofocussing, gas-solid extraction, solid-phase extraction (SPE), solid-phase microextrraction (SPME), solvent extraction and evaporation.

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

Journals database: Microchimica Acta
Instrument database: Tekran Instruments Corporation - Series 2600 Mercury Analysis System
Directory of scientists: Maďté Bueno
Link database: US EPA Method 0061: Determination of Hexavalent Chromium Emissions from Stationary Sources
Instrument database: Mercury Instruments GmbH - UT-3000 Mercury Ultratracer
Instrument database: Elemental Scientific Inc. (ESI) - seaFAST - Automated ICPMS Preconcentration System for Undiluted Seawater
Directory of scientists: Pawel Pohl
Instrument database: PerkinElmer Inc. - TurboMatrix Automated Headspace Samplers HS-110/HS-16/HS-40
Directory of scientists: Carlos Bendicho Hernández
Directory of scientists: Dimiter L. Tsalev
CANAS'09: Colloquium Analytical Atomic Spectroscopy | EVISA's Agenda of Events
5th Black Sea Basin Conference on Analytical Chemistry | EVISA's Agenda of Events
Material database: Canadian Certified Reference Materials Project (CCRMP) - MA-1b Gold Ore
Directory of scientists: Christian Dietz
Non-chromatographic separation techniques for speciation analysis | EVISA's News
Analytical Forum 2004 | EVISA's Agenda of Events
Flow-injection inductively coupled plasma mass spectrometry for speciation analysis | EVISA's News
Occurrence of monoethylmercury in the Florida Everglades verified | EVISA's News
Instrument database: Tekran Instruments Corporation - Series 3300 Speciating Mercury CEM - Overview
Mercury isotope ratio measurements of methylmercury in fish | EVISA's News