Performance and selectivity of dicyanuric-functionalized polycaprolactone as stationary phase for capillary gas chromatography.
Dicyanuric-functionalized polycaprolactone (DPCL) was explored for its separation performance in gas chromatography (GC). The statically coated DPCL capillary column (0.25mm, i.d.) showed column efficiency of 3460 plates/m determined by naphthalene at 120°C. McReynolds constants and Abrahaḿs system constants were also determined to evaluate the polarity and possible molecular interactions of the stationary phase. As a result, DPCL column exhibited excellent separation performance for diverse types of analytes with good peak shapes. Most interestingly, it shows unique amphiphilic selectivity and high-resolution capability for both apolar to polar isomers. In addition, DPCL column had good column repeatability with the RSD values below 0.06% for run-to-run, 0.09-0.40% for day-to-day and 1.7-3.6% for column-to-column, and good thermal stability up to 280°C. The high selectivity and resolving capability demonstrate the great advantages of the DPCL stationary phase for simultaneous determination of analytes of great variety in complex samples.
Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials and School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, China.
Jianlin
J
Peng
Key Laboratory of Soft Matter Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China.
Yonggang
Y
Shi
Key Laboratory of Soft Matter Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China.
Zhishuai
Z
Yang
Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials and School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, China. Electronic address: mlqi2013@163.com.
Meiling
M
Qi
Key Laboratory of Soft Matter Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China. Electronic address: drfwang@ustc.edu.cn.
Feng
F
Wang
D002849:Chromatography, Gas / Q000379:methods*; D007536:Isomerism; D011091:Polyesters / Q000737:chemistry*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
D011091:Polyesters; C016240:polycaprolactone
Amphiphilic selectivity; Capillary gas chromatography; Dicyanuric-functionalized polycaprolactone; Isomers; Separation performance; Stationary phase