Triptycene-derived heterocalixarene: A new type of macrocycle-based stationary phases for gas chromatography

High‐Resolution Performance of Polycaprolactone Functionalized with Guanidinium Ionic Liquid for Gas Chromatography

“…[5] The research on the developing highly selective stationary phases is the main content to work out the issues for separating complex samples in GC. Over the past decades, lots of novel stationary phases were continuously developed, such as polymers, [6] macrocycles, [7] metal-organic framework, [8] ionic liquids [9] and carbon nanomaterials, [10] et al Among them, polymers are widely used in the fields of GC due to their low melting points and good film-forming ability. Commercial polysiloxane [11,12] and polyethylene glycol (PEG) [13,14] columns exhibit advantageous resolving capacities for various structural and positional isomers with different polarity.…”

Investigation of the chiral recognition role of cyclodextrin hydroxyl moieties via high performance liquid chromatography

“…Among the various chiral separation techniques, chiral stationary phases (CSPs) are regarded as one of the most effective and attractive methods for separating chiral compounds. 4 Cellulose, 5,6 calixarene, 7,8 crown ethers 9,10 and cyclodextrins (CDs) 11–13 are considered to be effective chiral selectors that have contributed greatly to enantioseparation. Among them, CDs and their derivatives are probably the most frequently studied chiral selectors to date.…”

Increasing Mass Transfer Resistance of MOFs as a Reverse Tuning Strategy to Achieve High-Resolution Gas Chromatographic Separation

“…Developing high-performance stationary phases is the core of chromatographic separation science. − Accelerating the mass transfer of analytes in separators has always been recognized as an efficient way to enhance the separation ability of many gas chromatography (GC) stationary phases. For example, the Van Deemter equation indicts that reducing the eddy diffusion ( A term) and enhancing the diffusion coefficient of analytes in the stationary phase ( D s ) can achieve high column efficiency.…”