species-specific isotope dilution

Species-specific isotope dilution (sometimes also called speciated isotope dilution) is an isotope dilution technique using a spike compound identical to the compound under investigation but labeled with a specific isotope of the target element. Species-specific ID analysis is only possible for element species well defined in their structure and composition. The equilibration of the spike and the analyte in the sample, attainable in classical IDMS by multiple sequential dissolution and evaporation cycles, cannot be guaranteed to be achieved for species-specific ID analysis of solid samples. If applicable, the method can correct for loss of analyte during sample preparation following the spike addition, incomplete derivatisation yield and for intensity suppression/enhancement during detection.



The term "species-specific isotope dilution" was found in the following pages:

The Determination of Hexavalent Chromium in Airborne Particulate Matter in Presence of High Amounts of Trivalent Chromium | EVISA's News
On-column internal standardisation as an alternative calibration strategy for speciation analysis | EVISA's News
Problems to be solved
Directory of scientists: H. M. "Skip" Kingston
Double spiking species-specific isotope dilution result calculations simplified | EVISA's News
Material database: LGC Ltd. - LGC7330 - Selenomethionine enriched with 76Se
New findings about Thimerosal Neurotoxicity | EVISA's News
Quantification of copper chlorophylls in green table olives | EVISA's News
Problems to be solved in the field of speciation analysis
Directory of scientists: Tea Zuliani
New quick test for methylmercury | EVISA's News
Effect of cooking on the speciation of chromium in food | EVISA's News
Chromium speciation in solid matrices | EVISA's News
ERM-AE671: A new Certified Reference Material to make methylmercury measurements in food more reliable | EVISA's News
Species-specific isotope dilution analysis has been adopted as an official method under US legislation | EVISA's News
Material database: IRMM - Institute for Reference Materials and Measurements - ERM-AE671 CH3(202Hg)Cl in 2 % Ethanol/Water
A new quantification strategy for bioimaging by laser ablation - inductively coupled plasma-mass spectrometry based on isotope dilution analysis | EVISA's News
Sample preservation for speciation analysis - General recommendations | EVISA's News
A short report from the speciation workshop TraceSpec 2009 | EVISA's News
Speciation Analysis - Striving for Quality | EVISA's News