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首页> 外文OA文献 >Quenching-Chemiluminescence Determination of Trace Amounts of l-Tyrosine Contained in Dietary Supplement by Chemiluminescence Reaction of an Iron-Phthalocyanine Complex
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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

机译：淬火-化学发光法测定痕量的痕量 铁酞菁配合物的化学发光反应在膳食补充剂中包含的酪氨酸

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摘要

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%.
机译：当将过氧化氢溶液注入铁酞菁四磺酸（Fe-PTS）水溶液中时，立即出现化学发光（CL）信号。此外，通过添加l-酪氨酸，Fe-PTS的CL强度降低。基于这些结果，使用猝灭化学发光法测定了痕量的l-酪氨酸。在2.0×10−7 M至2.0×10−5 M的浓度范围内获得了L-酪氨酸的校准曲线。此外，对于2.0×10−M的相对标准偏差（RSD）为1.63％（n = 5） 6 M L-酪氨酸及其检出限（3σ）为1.81×10-7 M.使用软饮料对L-酪氨酸进行加标和回收实验。此外，1-酪氨酸的测定适用于含有各种氨基酸的补品。每种满意的相对回收率均达到98％至102％。

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