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Please use this identifier to cite or link to this item: http://hdl.handle.net/10112/6002

Title: Quantitative Analysis of an Antioxidant Additive in Insoluble Plastics by Surface-Assisted Laser Desorption/Ionization Mass Spectrometry (SALDI-MS) Using TiO2 Nanoparticles
Authors: Osaka, Issey
Okamura, Koji
Miyake, Naoki
Watanabe, Takehiro
Nozaki, Kazuyoshi
Kawasaki, Hideya
Arakawa, Ryuichi
Author's alias: 大坂, 一生
奥村, 晃司
三宅, 直毅
渡辺, 健宏
野崎, 和吉
川崎, 英也
荒川, 隆一
Keywords: SALDI
DIOS
MALDI
Antioxidant additive
Quantitation
Issue Date: 2010
Publisher: Mass Spectrometry Society of Japan
出版者の別表記: 日本質量分析学会
Shimei: Journal of the Mass Spectrometry Society of Japan
Volume: 58
Issue: 4
Start page: 123
End page: 127
Abstract: The applicability of matrix-free surface-assisted laser desorption/ionization mass spectrometry using porous silicon (DIOS-MS) and TiO2 nanoparticles (TiO2-SALDI-MS) was examined by analyzing an antioxidant added to insoluble polypropylene (PP) materials. The optimized solvent extraction, which involved freezing and crushing the PP, results in a good recovery, 89±4 and 97±8% for 0.5 wt% of the added antioxidant, tetrakis[methylene3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate]methane (commercial name; Irganox1010) in laboratory-produced and commercial PP composites, respectively. The positive ion measurements in DIOS and TiO2-SALDI-MS yielded sodium adduct ions without any interference from other signals. Using an internal standard with a similar structure, a good calibration curve linearity was established in the Irganox1010 concentration range of 0.01-2.0 mg/mL in PP, which was sufficient for monitoring the plastic additives. However, TiO2-SALDI-MS was superior to DIOS-MS in terms of mass resolution and easiness of sample preparation. A solvent extraction method followed by TiO2-SALDI-MS appears to be a anticipated method for the analysis of additives in insoluble plastics.
type: Journal Article
URI: http://hdl.handle.net/10112/6002
ISSN: 13408097
NCID: AA1254271X
Text Version: publisher
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