Gas chromatography of metal β-diketonates and their analogues

Analytical Aspects of Metal Enolates

“…The GC of metal chelates derived from monothio-β-diketones, β-diketones, β-dithioketones and β-ketoenamines was reviewed. The discussion includes column phenomena, analytical improvements and limitations and various applications 106 . A study of the GC behavior of Group 13 β-diketonates 37 shows that when the chelate contains a Mef group its volatility is enhanced, while a Ph group tends to decrease it.…”

Sample Preparation for Chromatographic Analysis

“…The preparation of neutral chelates for the separation of metals by gas chromatography has been studied for many years [436,667,[669][670][671][672]. The principal limit to the success of this approach is the paucity of suitable reagents which can confer the necessary volatility, thermal stability and chemical inertness on the metal ions.…”

“…Only in the case of the HTFA derivatives of beryllium, aluminum and chromium have trace level concentrations of the elements in environmental samples been determined [449,[670][671][672]. Non-fluorinated chelates usually have only marginally suitable thermal and Chromatographie stability, often requiring elution temperatures that are too high for thermal degradation to be completely absent.…”

“…The most widely used derivatives are the dithiocarbamates, dithiozonates, ketoenamines, salicylaldimines, dialkyl thiophosphates, 8-hydroxyquinolines and the tetradentate Schiff bases [671,[673][674][675][676]. The most widely used derivatives are the dithiocarbamates, dithiozonates, ketoenamines, salicylaldimines, dialkyl thiophosphates, 8-hydroxyquinolines and the tetradentate Schiff bases [671,[673][674][675][676].…”

Investigation of the interaction of ethyl acetoacetate with nano alumina particle as Lewis acid in acetonitrile solvent

“…The β-diketonate complexes thus formed have been the topic of hundreds of papers and reviews [1][2][3][4][5], and widely used in a lot of aspects in industry, such as organic electroluminescent technology, luminescent materials, sensors for bioinorganic applications, luminescent labels in bioaffinity assays [1,2], NMR shift reagents [6][7][8], laser chelates [9,10], extraction agents [11][12][13], heat stabilizers for polymers, drugs [14,15], chemical and photochemical catalysts [16]. Moreover, they are used in manufacturing supra-conductors [17,18] and gas chromatography [19,20]. A few papers have also appeared in which β-diketones have been shown to act as neutral ligands by establishing a coordinative interaction with the metal cation [21][22][23][24][25][26].…”