Structure-retention relationships for polychIorinated biphenyls and polyaromatic hydrocarbons on different GC phases
The mechanistic interactions that occur between different GC phases(BP 1,BP5,BPX5,HT8, BPX35 and BPX50)and PCB congeners are discussed in terms of silphenylene and carborane content relative to their sterically forced and electronically preferred conformations and the degree of steric hindrancce around the less hindered aromatic ring. Retention is found to respond to priorities that are weighted according to phase type.The factors are(1)forced conformation and restricted rotation determined by the ortho effect,(2) preferred conformation driven by electronic effects,(3)steric hindrance of the π/π*orbitals by the substitution pattern of the less hindered ring,(4)electron density on the less crowded ring and(5)overall electron density.
PCB congener resolution GC phases HT8 BP5 BPX5 BPX35 BPX50
Roy Hibbert Phillip Marriott Naza Lahoutifard Paul Wynne
SGE Analytical Science,7 Argent P1.,Ringwood,3134,Australia School of Physical Sciences,RMIT,Melbourne,Australia SGE Europe,12 av.Du Quebec,BP98,91943 Courtaboeuf,France
国际会议
北京
英文
1-4
2009-08-24（万方平台首次上网日期，不代表论文的发表时间）