Quantitative Analysis of an Antioxidant Additive in Insoluble Plastics by Surface-Assisted Laser Desorption/Ionization Mass Spectrometry (SALDI-MS) Using TiO2 Nanoparticles
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- OSAKA Issey
- Center for Nano Materials and Technology, Japan Advanced Institute of Science and Technology
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- OKUMURA Koji
- Faculty of Chemistry, Materials and Bioengineering, Kansai University
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- MIYAKE Naoki
- Faculty of Chemistry, Materials and Bioengineering, Kansai University
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- WATANABE Takehiro
- Faculty of Chemistry, Materials and Bioengineering, Kansai University
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- NOZAKI Kazuyoshi
- Faculty of Chemistry, Materials and Bioengineering, Kansai University
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- KAWASAKI Hideya
- Faculty of Chemistry, Materials and Bioengineering, Kansai University
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- ARAKAWA Ryuichi
- Faculty of Chemistry, Materials and Bioengineering, Kansai University
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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.
Journal
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- Journal of the Mass Spectrometry Society of Japan
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Journal of the Mass Spectrometry Society of Japan 58 (4), 123-127, 2010
The Mass Spectrometry Society of Japan
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Details 詳細情報について
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- CRID
- 1390001206496955648
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- NII Article ID
- 10026518008
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- NII Book ID
- AA1254271X
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- ISSN
- 18804225
- 18843271
- 13408097
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- HANDLE
- 10112/6002
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- NDL BIB ID
- 10783105
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- Text Lang
- en
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed