Establishment of device used to release internal standard and its application to analysis of evolved behavior of pyrolysis products

doi:10.3724/SP.J.1123.2016.09029

Abstract

Abstract:

Internal standard was applied to the analysis of evolved behavior of pyrolysis products. Liquid drop supporting device of gas flow-liquid drop microextraction (GF-LDME) was improved. The coupling device used to release internal standard and enrich the pyrolysis products was established. The internal standard and pyrolysis products were extracted into liquid drop under the same conditions. Coupled the device with gas chromatography-mass spectrometer (GC-MS), the comparison of relative amount for each pyrolysis product between different temperature ranges was achieved. The evolved behavior of pyrolysis products for green coffee beans was investigated. The experiments were conducted at a flowing air rate of 200 mL/min and a heating rate of 10℃/min. Identification of 13 pyrolysis products between 100℃ and 400℃ and the monitoring of evolved behavior were carried out. The hydroxyacetone, azabenzene, furfuryl alcohol, γ-butyrolactone and n-valeraldehyde evolved reached to a maximum evolved quantity at 280-300℃, while acetic acid, phenol, 2-cyclopentenone, 2-methoxyphenol evolved reached to a maximum quantity at 300-320℃. The method has obvious advantages in the analysis of complex pyrolysis products.

Key words: analysis of evolved behavior, gas flow-liquid drop microextraction (GF-LDME), green coffee beans, internal standard release device, pyrolysis, thermogravimetry (TG)

CLC Number:

O658

ZHU Wenhui, YANG Liu, CHEN Yongkuan, YANG Ji, LIU Hanqing, MIAO Mingming. Establishment of device used to release internal standard and its application to analysis of evolved behavior of pyrolysis products[J]. Chinese Journal of Chromatography, 2017, 35(2): 211-215.

References

[1] Zhou J Q, Gao P, Dong C Q, et al. Journal of Fuel Chemistry and Technology, 2015, 43(12):1427周建强, 高攀, 董长青, 等. 燃料化学学报, 2015, 43(12):1427
[2] Jin W, Shen D K, Liu Q, et al. Polym Degrad Stabil, 2016, 133:65
[3] Li S S, Ma X Q, Liu G C, et al. J Anal Appl Pyrol, 2016, 120:540
[4] Colman M D, da Silveira Lazzarotto S R, Lazzarotto M, et al. J Anal Appl Pyrol, 2016, 119:157
[5] Li J H, Yang S G, Li X T. Transactions of the Chinese Society of Agricultural Engineering, 2014(14):251李继红, 杨世关, 李晓彤. 农业工程学报, 2014(14):251
[6] Li S J, Mu J, Zhang Y. Spectroscopy and Spectral Analysis, 2014, 34(6):1497李思锦, 母军, 张宇. 光谱学与光谱分析, 2014, 34(6):1497
[7] Wang Q, Wang Z C, Jia C X, et al. Acta Petrolei Sinica (Petroleum Processing Section), 2015, 31(4):1003王擎, 王智超, 贾春霞, 等. 石油学报(石油加工), 2015, 31(4):1003
[8] Sun S B, Gao Q, Tian Y L, et al. Journal of Building Materials, 2014, 17(2):246孙诗兵, 高庆, 田英良, 等. 建筑材料学报, 2014, 17(2):246
[9] Fan D M, Zhu Z P, Lü Q G. Coal Conversion, 2014, 37(1):5范冬梅, 朱治平, 吕清刚. 煤炭转化, 2014, 37(1):5
[10] Zhang J Z, Chen T J, Wu J L, et al. Waste Manage, 2015, 43:152
[11] Hotová G, Slovák V. Thermochim Acta, 2016, 632:23
[12] Zhu W H, Yang L, Yang H Y, et al. Journal of Chinese Mass Spectrometry Society, 2009, 30(6):364朱文辉, 杨柳, 杨红燕, 等. 质谱学报, 2009, 30(6):364
[13] Zhao J W, Huang X M, Li X D. Journal of Southeast University (Natural Science Edition), 2014, 44(1):178赵洁雯, 黄晓明, 李晓东. 东南大学学报(自然科学版), 2014, 44(1):178
[14] Zhu W H, Yang L, Yang H Y, et al. Chinese Journal of Analytical Chemistry, 2010, 38(4):527朱文辉, 杨柳, 杨红燕, 等. 分析化学, 2010, 38(4):527
[15] Yang J, Yang L, Zhu W H, et al. Chinese Journal of Chromatography, 2010, 28(10):929杨继, 杨柳, 朱文辉, 等. 色谱, 2010, 28(10):929
[16] Zhu W H, Yang L, Yang J, et al. Chinese Journal of Analytical Chemistry, 2011, 39(1):51朱文辉, 杨柳, 杨继, 等. 分析化学, 2011, 39(1):51