Authors:
Y. Yamada Hokuriku University School of Pharmacy Kanagawa-machi 920-11 Kanazawa (Japan)

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M. Itoh Kanazawa University Low level Radioactivity Laboratory Tatsunokuchi-machi 923-12 Ishikawa (Japan)

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N. Kiriyama Hokuriku University School of Pharmacy Kanagawa-machi 920-11 Kanazawa (Japan)

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C. Nishimoto Hokuriku University School of Pharmacy Kanagawa-machi 920-11 Kanazawa (Japan)

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K. Komura Kanazawa University Low level Radioactivity Laboratory Tatsunokuchi-machi 923-12 Ishikawa (Japan)

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K. Ueno Kanazawa University Low level Radioactivity Laboratory Tatsunokuchi-machi 923-12 Ishikawa (Japan)

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Abstract  

Explosive depressurization offered an effective pre-treatment for isolating -cellulose from wood chips using the common chlorite method. This operation shortened the time required for isolation of -cellulose of relatively high purity by up to 6 h, and raised the relative crystallinity of the product to 65–72% from 50% or below for the unexploded samples. The steam-explosion was carried out by combining 2 min of pre-hydrolysis at a pressure of 3.55 MPa with a rapid decompression. This was found to be the best operating condition for pine wood chips of 1 mm thickness to analyze the tritium content in tree rings accurately.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)