Study of residual lignin in pulp by UV resonance raman spectroscopy

Mari Halttunen, Jouko Vyörykkä, Bo Hortling, Tarja Tamminen, David Batchelder, Anette Zimmermann, Tapani Vuorinen

Research output: Contribution to journalArticleScientificpeer-review

48 Citations (Scopus)

Abstract

A major problem in the development of new bleaching technologies for pulp is the difficulty of analysing the changes induced by bleaching chemicals in the structures of residual lignin. Separation and isolation of the residual lignin before the analysis may modify the constituents of interest, whereas if the pulp is analysed directly, the responses from cellulose and hemicelluloses will overlap the signal from the residual lignin. In this study, UV resonance Raman spectroscopy, a powerful technique for detecting trace components in complex mixtures, was applied to detect the changes in the residual lignin content after bleaching stages. The resonance Raman technique was found to be highly sensitive and selective for lignin structures allowing the detection of trace amounts of lignin after the final bleaching stages. Furthermore, it enabled rapid and easy determination of hexenuronic acid content. UV resonance Raman spectroscopy would appear to be a technique of great potential for pulping and bleaching research.
Original languageEnglish
Pages (from-to)631-638
Number of pages8
JournalHolzforschung
Volume55
Issue number6
DOIs
Publication statusPublished - 2001
MoE publication typeA1 Journal article-refereed

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Lignin
Pulp
Raman spectroscopy
Bleaching
Complex Mixtures
Cellulose
Acids

Cite this

Halttunen, M., Vyörykkä, J., Hortling, B., Tamminen, T., Batchelder, D., Zimmermann, A., & Vuorinen, T. (2001). Study of residual lignin in pulp by UV resonance raman spectroscopy. Holzforschung, 55(6), 631-638. https://doi.org/10.1515/HF.2001.103
Halttunen, Mari ; Vyörykkä, Jouko ; Hortling, Bo ; Tamminen, Tarja ; Batchelder, David ; Zimmermann, Anette ; Vuorinen, Tapani. / Study of residual lignin in pulp by UV resonance raman spectroscopy. In: Holzforschung. 2001 ; Vol. 55, No. 6. pp. 631-638.
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Halttunen, M, Vyörykkä, J, Hortling, B, Tamminen, T, Batchelder, D, Zimmermann, A & Vuorinen, T 2001, 'Study of residual lignin in pulp by UV resonance raman spectroscopy', Holzforschung, vol. 55, no. 6, pp. 631-638. https://doi.org/10.1515/HF.2001.103

Study of residual lignin in pulp by UV resonance raman spectroscopy. / Halttunen, Mari; Vyörykkä, Jouko; Hortling, Bo; Tamminen, Tarja; Batchelder, David; Zimmermann, Anette; Vuorinen, Tapani.

In: Holzforschung, Vol. 55, No. 6, 2001, p. 631-638.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Study of residual lignin in pulp by UV resonance raman spectroscopy

AU - Halttunen, Mari

AU - Vyörykkä, Jouko

AU - Hortling, Bo

AU - Tamminen, Tarja

AU - Batchelder, David

AU - Zimmermann, Anette

AU - Vuorinen, Tapani

PY - 2001

Y1 - 2001

N2 - A major problem in the development of new bleaching technologies for pulp is the difficulty of analysing the changes induced by bleaching chemicals in the structures of residual lignin. Separation and isolation of the residual lignin before the analysis may modify the constituents of interest, whereas if the pulp is analysed directly, the responses from cellulose and hemicelluloses will overlap the signal from the residual lignin. In this study, UV resonance Raman spectroscopy, a powerful technique for detecting trace components in complex mixtures, was applied to detect the changes in the residual lignin content after bleaching stages. The resonance Raman technique was found to be highly sensitive and selective for lignin structures allowing the detection of trace amounts of lignin after the final bleaching stages. Furthermore, it enabled rapid and easy determination of hexenuronic acid content. UV resonance Raman spectroscopy would appear to be a technique of great potential for pulping and bleaching research.

AB - A major problem in the development of new bleaching technologies for pulp is the difficulty of analysing the changes induced by bleaching chemicals in the structures of residual lignin. Separation and isolation of the residual lignin before the analysis may modify the constituents of interest, whereas if the pulp is analysed directly, the responses from cellulose and hemicelluloses will overlap the signal from the residual lignin. In this study, UV resonance Raman spectroscopy, a powerful technique for detecting trace components in complex mixtures, was applied to detect the changes in the residual lignin content after bleaching stages. The resonance Raman technique was found to be highly sensitive and selective for lignin structures allowing the detection of trace amounts of lignin after the final bleaching stages. Furthermore, it enabled rapid and easy determination of hexenuronic acid content. UV resonance Raman spectroscopy would appear to be a technique of great potential for pulping and bleaching research.

U2 - 10.1515/HF.2001.103

DO - 10.1515/HF.2001.103

M3 - Article

VL - 55

SP - 631

EP - 638

JO - Holzforschung

JF - Holzforschung

SN - 0018-3830

IS - 6

ER -

Halttunen M, Vyörykkä J, Hortling B, Tamminen T, Batchelder D, Zimmermann A et al. Study of residual lignin in pulp by UV resonance raman spectroscopy. Holzforschung. 2001;55(6):631-638. https://doi.org/10.1515/HF.2001.103