The selectivity of a polydimethylsiloxane-based triblock copolymer as the stationary phase for capillary gas chromatography

ACS Appl. Mater. Interfaces

Huang

et al. 2022

Self Cite

In this work, the fabrication, synthesis, and characterization of a new stationary phase based on an amphiphilic pillar[6]arene (P6A-C10-2NH2) for gas chromatographic analyses are reported. The gas chromatography (GC) column prepared with P6A-C10-2NH2 stationary phase exhibited a medium polarity, an efficiency of 3219 plates/m, and unmatched resolving capabilities toward chloroaniline, bromoaniline, iodoaniline, and toluidine isomers. Furthermore, the P6A-C10-2NH2 column showed excellent repeatability with maximum relative standard deviations equal to 0.02, 0.07, and 2.56% for run-to-run, day-to-day, and column-to-column, respectively, demonstrating a great potential as a new stationary phase in separation science.

Section: Resultsmentioning

confidence: 99%

Chromatographic Separation of Aromatic Amine Isomers: A Solved Issue by a New Amphiphilic Pillar[6]arene Stationary Phase

Sun

ACS Appl. Mater. Interfaces

Huang

et al. 2022

Self Cite

“…[23,24] In our previous works, the triblock copolymers including PCL-PDMS-PCL and PCL-PEG-PCL found that the improving chromatographic performance originated from the addition of PCL block. [25][26][27] However, as with most hydroxy terminated polymeric materials, the relatively low thermal stability of PCL necessitates its functionalization.…”

Section: Introductionmentioning

confidence: 99%

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

Chi

Chemistry & Biodiversity

et al. 2023

Self Cite

This work firstly reported a new polycaprolactone based material functionalized with guanidinium ionic liquid (PCL‐GIL) as the stationary phase with high resolution performance for capillary gas chromatography (GC). It is composed of polycaprolactone (PCL) and guanidinium ionic liquid (GIL) with amphiphilic conformation. The PCL‐GIL capillary column coated by static method exhibited high column efficiency of 3942 plates/m and moderate polarity. As a result, the PCL‐GIL column exhibited high‐resolution capability. For a mixture of 27 analytes with a wide ranging polarity and outperformed the PCL‐2OH and HP‐35 columns, showing its advantageous separation capability for analytes of diverse types. Moreover, the PCL‐GIL column showed high resolving capability for various positional isomers and cis‐/trans‐isomers, including alkylbenzenes, chlorobenzenes, naphthalenes, bromonitrobenzenes, chloronitrobenzenes, benzaldehydes, phenols, alcohols, respectively. In a word, PCL derivatized by GIL units as a new type of stationary phase has a promising future in GC separations.

“…Capillary gas chromatography (GC) has been widely used in petrochemical, pharmaceutical, environmental, biochemistry, food and other fields, while the stationary phase is the key of GC analysis because the separation performance and retention behavior of a capillary GC column mostly depend on the chromatographic features of its stationary phase. [1][2][3][4] Currently, polymers, [5][6][7][8] macrocyclics, [9][10][11][12] ionic liquids, 13,14 metal-organic frameworks (MOFs), 15,16 and covalent organic frameworks (COFs) 17,18 have been reported as stationary phases for GC separations. It is worth noting that polymers are the most popular chromatographic stationary phases because of their excellent physicochemical properties such as good film-forming properties, chemical stability and easy modification.…”

Section: Introductionmentioning

confidence: 99%

An Amphiphilic Star-Shaped Polymer (Star-PEG-PCL2) used as a Stationary Phase for GC

Chi

Zhang

et al. 2023

ACSi

A star-shaped polymer (Star-PEG-PCL2) was synthesized to with PCL and PEG, and used as a stationary phase for gas chromatography. The statically coated Star-PEG-PCL2 column exhibited an efficiency of 2260 plates/m determined by naphthalene at 120 °C and moderate polarity. The Star-PEG-PCL2 column showed high resolution performance for isomers of a wide ranging polarity, including methylnaphthalenes, halogenated benzenes, nitrobenzene, phenols, and anilines, and displayed dual-nature selectivity for a mixture of 17 analytes. Also, the Star-PEG-PCL2 column exhibited good separation performance and column inertness for Grob test mixture and a series of cis-/trans-isomers. In addition, it exhibited advantageous separation performance over the commercial HP-35 and PEG-20M columns for chloroaniline and bromoaniline isomers through its unique three-dimensional framework. In conclusion, it has good potential as a new stationary phase for separating a variety of analytes because of its special structure and excellent separation performance.