Analytical process of the controlled conversion of species originally present in a sample into forms with improved chromatographic yield or separation coefficient. The most popular is derivatization of ionic or highly polar species into non-polar species that can be readilly separated by GC (e.g. Grignard derivatization).

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

Speciation Analysis - Striving for Quality | EVISA's News
Instrument database: GBC Scientific Equipment Ltd. - LC1650 Automated Chromatography Sample Introduction System (ACSIS)
GC-ICP-MS: A very sensitive hyphenated system for speciation analysis | EVISA's News
Directory of scientists: Olivier F.X. Donard
Link database: NIOSH Method 7605: Hexavalent Chromium by Ion Chromatography
Instrument database: Varian Inc. (Part A) - ProStar 410 Autosampler
Certified reference materials for mercury in soils and sediments | EVISA's News
Instrument database: GERSTEL GmbH & Co.KG - MPS 3 MultiPurpose Sampler
Instrument database: Gilson, Inc - ASPEC™ XLi SPE System with On-line Injection
Trends in Sample Preparation 2004 | EVISA's Agenda of Events
Instrument database: Shimadzu Europe - GCMS-QP2010 SE
Certified reference materials for mercury in biological materials | EVISA's News
Atomic Fluorescence Spectrometry as a Detection System for Speciation Analysis | EVISA's News
Quantification of Glyphosate and AMPA by HPLC-ICP-MS/MS | EVISA's News
Material database: Wohleb Scientific, Inc. - ILE Deep Well Plates
TRISP '11: Trends in Sample Preparation 2011 | EVISA's Agenda of Events
EVISA welcomes Sigma-Aldrich as a new supporting company for EVISA's material database | EVISA's News
Instrument database: SYKAM Chromatographie Vertriebs GmbH - S5200 HPLC Sample injector
Instrument database: Jasco Inc. - AS-2059 Intelligent Autosampler
Instrument database: Waters Corporation - 717plus Autosampler