Separation characteristics of fatty acid methyl esters using SLB-IL111, a new ionic liquid coated capillary gas chromatographic column

Evaluation of ionic liquid stationary phases for one dimensional gas chromatography–mass spectrometry and comprehensive two dimensional gas chromatographic analyses of fatty acids in marine biota

“…The value obtained for C20:1n9 (ECL = 20.62) (here, using a temperature gradient) corresponds well with the data reported by Ando and Sasaki (ECL = 20.57-20.73, depending on isothermal temperature) [35]. Recently, an even more polar IL phase (SLB-IL 111) was also evaluated for FAME analysis [36]. On this column, the unsaturated fatty acids are even more retained and saturated fatty acids (C x :0) interfere with mono-unsaturated fatty acids with one carbon less (C x−1 :1).…”

“…Polar ionic liquid phases were used for the analysis of fatty acid methyl esters [32][33][34], and their potential for the separation of eicosenoic acid (C20:1) isomers [35] and octadecenoic acid (C18:1) and octadecadienoic acid (C18:2) isomers [36] was demonstrated. For these applications, flame ionization detection (FID) was used.…”

Quantitative Analysis of the Distribution of<i> cis</i>-Eicosenoic Acid Positional Isomers in Marine Fishes from the Indian Ocean

“…2 and 12 and Nakamura et al 14 for the same GC column and Ando and Sasaki 15 for the SLB-IL100 GC column. The IS c14-20:1 eluted Fig.…”

“…The SLB-IL111 GC capillary column has the stationary phase with the highest polarity that has been commercialized for use in capillary GC 12 .…”

“…Nevertheless, the identification of LC-MUFA positional isomers from a complex mixture of fatty acid methyl esters FAME presents a major challenge due to overlap with other FAs. It has been previously reported that the geometric isomers of α-linolenic acid, γ-linolenic acid, and heneicosanoic acid 21:0 overlap with the isomers of c-20:1 on the SLB-IL111 GC column 12 .…”