Evaluation of the Oxidation of Rice Husks with Sodium Hypochlorite Using Gas Chromatography-Mass Spectrometry and Direct Analysis in Real Time-Mass Spectrometry

Wang, Shou-Ze; Fan, Xing; Zheng, Ai-Li; Lu, Yao; Wei, Xian‐Yong; Zhao, Yun‐Peng; Wang, Ruiyu; Dou, You-Quan; Wang, Yinghua; Wang, Chu‐Fan; Zhang, Fan; Shen, Yong; Li, Chunyan; Zheng, Liang; Liu, De-Ying

doi:10.1080/00032719.2013.831425

Cited by 12 publications

(8 citation statements)

References 29 publications

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“…For example, the chromatographic techniques coupled to mass spectrometers and high-resolution mass spectrometric techniques were used extensively in the analysis of the bio-oil, biomass, and lignin samples [20][21][22][23][24]. These methods concentrate on the detection of individual species basing on the chromatographic separation and high molecular resolution.…”

Section: Introductionmentioning

confidence: 99%

Structural Characterization of Lignin and Its Degradation Products with Spectroscopic Methods

Hong-qin

et al. 2017

Journal of Spectroscopy

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239

103

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Lignin is highly branched phenolic polymer and accounts 15-30% by weight of lignocellulosic biomass (LCBM). The acceptable molecular structure of lignin is composed with three main constituents linked by different linkages. However, the structure of lignin varies significantly according to the type of LCBM, and the composition of lignin strongly depends on the degradation process. Thus, the elucidation of structural features of lignin is important for the utilization of lignin in high efficient ways. Up to date, degradation of lignin with destructive methods is the main path for the analysis of molecular structure of lignin. Spectroscopic techniques can provide qualitative and quantitative information on functional groups and linkages of constituents in lignin as well as the degradation products. In this review, recent progresses on lignin degradation were presented and compared. Various spectroscopic methods, such as ultraviolet spectroscopy, Fourier-transformed infrared spectroscopy, Raman spectroscopy, and nuclear magnetic resonance (NMR) spectroscopy, for the characterization of structural and compositional features of lignin were summarized. Various NMR techniques, such as 1 H, 13 C, 19 F, and 31 P, as well as 2D NMR, were highlighted for the comprehensive investigation of lignin structure. Quantitative 13 C NMR and various 2D NMR techniques provide both qualitative and quantitative results on the detailed lignin structure and composition produced from various processes which proved to be ideal methods in practice.

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Section: Introductionmentioning

confidence: 99%

Structural Characterization of Lignin and Its Degradation Products with Spectroscopic Methods

Hong-qin

et al. 2017

Journal of Spectroscopy

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239

103

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“…Zhao et al investigated the quantification of small molecules in plasma and found that 300°C was the optimum temperature. Significantly, the temperature for analyzing the resulting portions from coals, biomass and petroleum usually ranged from 350 to 450°C . Therefore, we investigated the optimal temperature for ionizing oxidation products.…”

Section: Resultsmentioning

confidence: 99%

“…Significantly, the temperature for analyzing the resulting portions from coals, biomass and petroleum usually ranged from 350 to 450°C. 10,18,20,24 Therefore, we investigated the optimal temperature for ionizing oxidation products. In this study, 300, 350, 400, and 450°C were designed to explore the optimal ionization temperature of MCs.…”

Section: Effect Of the Gas Temperaturementioning

confidence: 99%

Rapid analysis of carboxylic acids and esters with a direct analysis in real time ion source

Wang

Wei

et al. 2018

Rapid Comm Mass Spectrometry

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“…The oxidation of coals [6-10] and their related model compounds [11][12][13] in aqueous sodium hypochlorite solution were extensively investigated. The oxidation of wheat straw [14] and rice husk [15] in aqueous sodium hypochlorite solution was also examined. Superoxide anion radical O 2 -.…”

Section: Resultsmentioning

confidence: 99%

Anthracene Oxidation in an Aqueous Sodium Hypochlorite Solution

Qie¹,

Wei²

2015

J Org Inorg Chem

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Anthracene was used as a model compound for condensed aromatics in coals and liquid fuels. Its oxidation in aqueous sodium hypochlorite solution at 30°C, 40°C and 50°C was investigated, respectively. The results from gas chromatography/ mass spectrometry analysis show that anthracene can be converted to 22 products completely within 48 h. Non-chloro-substituted compounds are the main products and their total yield is much higher than that of chloro-substituted compounds, especially in the reaction for 96 h. Anthraquinone is the most abundant product and its yield reached maximum in the oxidation for 96 h at 40°C. The mechanisms for anthracene oxidation and chlorination are discussed.

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Evaluation of the Oxidation of Rice Husks with Sodium Hypochlorite Using Gas Chromatography-Mass Spectrometry and Direct Analysis in Real Time-Mass Spectrometry

Cited by 12 publications

References 29 publications

Structural Characterization of Lignin and Its Degradation Products with Spectroscopic Methods

Structural Characterization of Lignin and Its Degradation Products with Spectroscopic Methods

Rapid analysis of carboxylic acids and esters with a direct analysis in real time ion source

Anthracene Oxidation in an Aqueous Sodium Hypochlorite Solution

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