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Quenching-Chemiluminescence Determination of Trace Amounts of l-Tyrosine Contained in Dietary Supplement by Chemiluminescence Reaction of an Iron-Phthalocyanine Complex
The chemiluminescence (CL) signal immediately appeared when a hydrogen peroxide solution was injected into an iron-phthalocyanine tetrasulfonic acid (Fe-PTS) aqueous solution. Moreover, the CL intensity of Fe-PTS decreased by adding l-tyrosine. Based on these results, the determination of trace amou...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Hindawi Publishing Corporation
2012
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3336182/ https://www.ncbi.nlm.nih.gov/pubmed/22567562 http://dx.doi.org/10.1155/2012/520248 |
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author | Ohtomo, Takao Igarashi, Shukuro Takagai, Yoshitaka Ohno, Osamu |
author_facet | Ohtomo, Takao Igarashi, Shukuro Takagai, Yoshitaka Ohno, Osamu |
author_sort | Ohtomo, Takao |
collection | PubMed |
description | The chemiluminescence (CL) signal immediately appeared when a hydrogen peroxide solution was injected into an iron-phthalocyanine tetrasulfonic acid (Fe-PTS) aqueous solution. Moreover, the CL intensity of Fe-PTS decreased by adding l-tyrosine. Based on these results, the determination of trace amounts of l-tyrosine was developed using the quenching-chemiluminescence. The calibration curve of l-tyrosine was obtained in the concentration range of 2.0 × 10(−7) M to 2.0 × 10(−5) M. Moreover, the relative standard deviation (RSD) was 1.63 % (n = 5) for 2.0 × 10(−6) M l-tyrosine, and its detection limits (3σ) were 1.81 × 10(−7) M. The spike and recovery experiments for l-tyrosine were performed using a soft drink. Furthermore, the determination of l-tyrosine was applied to supplements containing various kinds of amino acids. Each satisfactory relative recovery was obtained at 98 to 102%. |
format | Online Article Text |
id | pubmed-3336182 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2012 |
publisher | Hindawi Publishing Corporation |
record_format | MEDLINE/PubMed |
spelling | pubmed-33361822012-05-07 Quenching-Chemiluminescence Determination of Trace Amounts of l-Tyrosine Contained in Dietary Supplement by Chemiluminescence Reaction of an Iron-Phthalocyanine Complex Ohtomo, Takao Igarashi, Shukuro Takagai, Yoshitaka Ohno, Osamu J Anal Methods Chem Research Article The chemiluminescence (CL) signal immediately appeared when a hydrogen peroxide solution was injected into an iron-phthalocyanine tetrasulfonic acid (Fe-PTS) aqueous solution. Moreover, the CL intensity of Fe-PTS decreased by adding l-tyrosine. Based on these results, the determination of trace amounts of l-tyrosine was developed using the quenching-chemiluminescence. The calibration curve of l-tyrosine was obtained in the concentration range of 2.0 × 10(−7) M to 2.0 × 10(−5) M. Moreover, the relative standard deviation (RSD) was 1.63 % (n = 5) for 2.0 × 10(−6) M l-tyrosine, and its detection limits (3σ) were 1.81 × 10(−7) M. The spike and recovery experiments for l-tyrosine were performed using a soft drink. Furthermore, the determination of l-tyrosine was applied to supplements containing various kinds of amino acids. Each satisfactory relative recovery was obtained at 98 to 102%. Hindawi Publishing Corporation 2012 2012-03-27 /pmc/articles/PMC3336182/ /pubmed/22567562 http://dx.doi.org/10.1155/2012/520248 Text en Copyright © 2012 Takao Ohtomo et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Article Ohtomo, Takao Igarashi, Shukuro Takagai, Yoshitaka Ohno, Osamu Quenching-Chemiluminescence Determination of Trace Amounts of l-Tyrosine Contained in Dietary Supplement by Chemiluminescence Reaction of an Iron-Phthalocyanine Complex |
title | Quenching-Chemiluminescence Determination of Trace Amounts of
l-Tyrosine Contained in Dietary Supplement by Chemiluminescence Reaction of an Iron-Phthalocyanine Complex |
title_full | Quenching-Chemiluminescence Determination of Trace Amounts of
l-Tyrosine Contained in Dietary Supplement by Chemiluminescence Reaction of an Iron-Phthalocyanine Complex |
title_fullStr | Quenching-Chemiluminescence Determination of Trace Amounts of
l-Tyrosine Contained in Dietary Supplement by Chemiluminescence Reaction of an Iron-Phthalocyanine Complex |
title_full_unstemmed | Quenching-Chemiluminescence Determination of Trace Amounts of
l-Tyrosine Contained in Dietary Supplement by Chemiluminescence Reaction of an Iron-Phthalocyanine Complex |
title_short | Quenching-Chemiluminescence Determination of Trace Amounts of
l-Tyrosine Contained in Dietary Supplement by Chemiluminescence Reaction of an Iron-Phthalocyanine Complex |
title_sort | quenching-chemiluminescence determination of trace amounts of
l-tyrosine contained in dietary supplement by chemiluminescence reaction of an iron-phthalocyanine complex |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3336182/ https://www.ncbi.nlm.nih.gov/pubmed/22567562 http://dx.doi.org/10.1155/2012/520248 |
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