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Using Barium Fluoride Fine Particles as Stationary Phase for TLC/FTIR Analysis
Alternative TitleUsing Barium Fluoride Fine Particles as Stationary Phase for TLC/FTIR Analysis
Liu Xi1; Pan Qinghua2; Ding Jie2; Zhu Qing1; He Anqi2; Yue Shijuan2; Li Xiaopei2; Hu Liping1; Xia Jinming4; Liu Cuige3; Wei Yongju3; Yu Jiang3; Yang Zhanlan2; Zhu Xi2; Xu Yizhuang2; Wu Jinguang2
2011
Source PublicationSPECTROSCOPY AND SPECTRAL ANALYSIS
ISSN1000-0593
Volume31Issue:7Pages:1767-1771
AbstractIn situ TLC/FIR technique has tremendous potential in the analysis of complex mixtures. However, the progress in this technique was quite slow. The reason is that conventional stationary phase such as silica gel etc. has strong absorption in FTIR spectrum and thus brings about severe interference in the detection of samples. To solve the problem, the authors propose to use barium fluoride fine particles as stationary phase of TLC plate. The reasons are as follows: Barium fluoride wafer has been extensively used as infrared window in FTIR experiments and it has no absorbance in an IR region between 4 000 and 800 cm(-1). As a matter of fact, the atomic mass of barium and fluoride is quite large, thus the normal vibration of BaF(2) lattice is limited in far-IR region and low frequency part of mid-IR region. Therefore, the interference caused by IR absorption of stationary phase can be resolved if BaF(2) is used as stationary phase of TLC plate. Moreover, BaF(2) is quite stable and insolvable in water and most organic solvents and it will not be dissolved by mobile phase or react with samples in TLC separation. Additionally, decreasing the particle size of BaF(2) is very important in TLC/FTIR analysis technique. The reason is two-fold: First, decreasing the particle size of stationary phase is helpful to improving the efficiency of separation by TLC plate; second, decreasing the size of BaF(2) particle can improve the quality of FTIR spectra by alleviating the problem of light scattering. By optimizing the synthetic conditions, fine particles of barium fluoride were obtained. SEM results indicate that the size of the BaF(2) particles is around 500 nm. FUR spectrum of the BaF(2) particles shows that no absorption of impurity was observed. Moreover, the elevation of baseline caused by light scattering is insignificant. The authors have developed a new technique named "settlement volatilization method" to prepare TLC plate without polymeric adhesive that may bring about significant interference in FTIR analysis. Preliminary TLC experiments proved that the TLC plate using BaF(2) fine particles as stationary phase can separate rhodamine B from methylene blue successfully. Applications of barium fluoride fine particles as stationary phase have bright perspective in the development of new in-situ TLC/FTIR analysis techniques.
KeywordPLANAR CHROMATOGRAPHY THIN-LAYER In situ TLC FUR Couple with Barium fluoride
Indexed ByCSCD
Language英语
CSCD IDCSCD:4225526
Citation statistics
Cited Times:2[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/154817
Collection中国科学院金属研究所
Affiliation1.辽宁大学
2.北京大学
3.陕西省地震局
4.中国科学院金属研究所
Recommended Citation
GB/T 7714
Liu Xi,Pan Qinghua,Ding Jie,et al. Using Barium Fluoride Fine Particles as Stationary Phase for TLC/FTIR Analysis[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2011,31(7):1767-1771.
APA Liu Xi.,Pan Qinghua.,Ding Jie.,Zhu Qing.,He Anqi.,...&Wu Jinguang.(2011).Using Barium Fluoride Fine Particles as Stationary Phase for TLC/FTIR Analysis.SPECTROSCOPY AND SPECTRAL ANALYSIS,31(7),1767-1771.
MLA Liu Xi,et al."Using Barium Fluoride Fine Particles as Stationary Phase for TLC/FTIR Analysis".SPECTROSCOPY AND SPECTRAL ANALYSIS 31.7(2011):1767-1771.
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