Analysis of an Alanine/Arginine Mixture by Using TLC/FTIR Technique

Liu, Jun; Zhou, Fengshan; Guo, Ruyan; Jiang, Ye; Fan, Xiaokun; He, Aiyong; Zhai, Yuanzheng; Weng, Shifu; Yang, Zhuo; Xu, Yizhuang; Noda, Isao; Wu, Jinguang

doi:10.1155/2014/925705

Cited by 3 publications

(2 citation statements)

References 14 publications

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“…In these studies, by using reflection techniques, although it has been highlighted the diffuse reflectance (DRIFT), it was mentioned that there were difficulties related to time of analysis and interference of absorptions of materials used in DRIFT-TLC analysis, such as silica present on the TLC plate, with those relating to additives to be identified. Recently, FT-IR microscopy technique [11] , have been focused as more promising, but we think that other reflection techniques, less complex and quicker can be used, such as universal attenuated total reflection (UATR), which has been used successfully to polymer analysis at IAE laboratories [6] . Therefore, in this paper, it was evaluated the applicability of the coupling/association TLC /IR techniques for the analysis of two EPDM rubber compositions, aiming to contribute to increase for increasing the knowledge for characterization of additives in rubber by potential reflection techniques, such as UATR.…”

Section: Introductionmentioning

confidence: 99%

TLC/IR (UATR) off-line coupling for the characterization of additives in EPDM rubber compositions

et al. 2016

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SbstractThe knowledge of the components that constitutes a rubber composition is important to justify the properties of the final device, particularly when it comes to elastomeric compositions used in the aerospace industry. The development of methodologies that can detect components, specially the smallest proportion of the rubbers composition is a constant challenge and an important gap in the studies of this nature. Therefore, methodologies by using standard techniques and/or of last generation are important in rubber industry and research laboratories, aiming application in related research. In this context, this study shows the coupling/association techniques (off-line) of thin layer chromatography and infrared spectroscopy (TLC/IR), being the IR spectra obtained by universal attenuated total reflection (UATR), applied to the analysis of additives in rubber compositions of ethylene-propylene-diene rubber (EPDM). Two EPDM compositions, a kind of eluent system and Gibbs' reagent, as developer, were used. Basically, all organic components were detected by this methodology, being possible to suggest that it can be applied for detecting additives of similar chemical structures, even though it's presents in small amounts in the composition.

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Section: Introductionmentioning

confidence: 99%

TLC/IR (UATR) off-line coupling for the characterization of additives in EPDM rubber compositions

et al. 2016

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“…Satisfactory results have been obtained. 29,30 All these work have demonstrated that TLC/FTIR by using AgI as stationary phase is applicable to real chemical systems.…”

Section: Introductionmentioning

confidence: 99%

Finding a suitable separation condition for TLC/FTIR analysis by using multiple-narrow-band TLC technique

et al. 2015

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Use of CuO Particles as an Interface in LC-FTIR Analysis

et al. 2017

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In this study, the feasibility of using copper oxide (CuO) as an interface for the coupling of liquid chromatography (LC) and Fourier-transform infrared (FTIR) spectroscopy was investigated. CuO exhibits low absorption in the 4000 to 1000 cm -1 FTIR spectral region. In addition, LC-FTIR using CuO as the interface was extended to the analysis of sample mixtures containing benzamide and dioctyl sebacate; both analytes were successfully separated. After complete removal of the mobile phase, benzamide and dioctyl sebacate were successfully identified from the FTIR spectrum. Surprisingly, the interference from adsorbed water or conventionally used LC solvents in the FTIR spectrum was completely eliminated by using CuO particles as the interface in the off-line hyphenation of LC-FTIR. Based on these results, CuO demonstrates potential as an ideal interface for LC-FTIR analysis.

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Analysis of an Alanine/Arginine Mixture by Using TLC/FTIR Technique

Cited by 3 publications

References 14 publications

TLC/IR (UATR) off-line coupling for the characterization of additives in EPDM rubber compositions

TLC/IR (UATR) off-line coupling for the characterization of additives in EPDM rubber compositions

Finding a suitable separation condition for TLC/FTIR analysis by using multiple-narrow-band TLC technique

Use of CuO Particles as an Interface in LC-FTIR Analysis

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