Simultaneous determination of five triarylmethane colorants in syrup by applying multivariate curve resolution to second-derivative visible absorption spectra

Simultaneous determination of five triarylmethane colorants in syrup by applying multivariate curve resolution to second-derivative visible absorption spectra
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应用二阶导数可见吸收光谱多元曲线分辨率同时测定糖浆中五种三芳基甲烷着色剂

DOI:
10.1007/s44211-022-00203-6
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发表时间:
2023
影响因子:
1.6
通讯作者:
Yamasaki Tomomi
Yamasaki Tomomi
中科院分区:
化学4区
文献类型:
--
作者:
Matsui Hiroshi;Yamasaki Tomomi

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提出了一种同时测定糖浆样品中5种三芳基甲烷着色剂(亮蓝FCF、专利蓝V、专利蓝VF、坚固绿FCF和绿色S)的方法,将多元曲线分辨率应用于柠檬酸盐和碳酸盐缓冲溶液中的二阶导数可见吸收光谱。即使对于严重重叠的光谱,采用二阶导数光谱和在柠檬酸盐和碳酸盐缓冲溶液中的多向分析提高了分析物的专属性,并实现了预测性能,对所有五种分析物的决定系数(R2) > 为0.90,预测均方误差 < 为0.20 mg/L,检出限为 < 为0.50 mg/L。基组展开法成功地对干扰物质的二阶导数光谱进行了合理的估计。对于商业糖浆样品,本方法预测的结果与用液相色谱-质谱法测定的结果没有显著差异。所提出的方法为食品样品中多种着色剂的定量提供了一种快速替代高效液相色谱技术的方法。
A method for the simultaneous determination of five triarylmethane colorants (brilliant blue FCF, patent blue V, patent blue VF, fast green FCF, and green S) in syrup samples was proposed by applying multivariate curve resolution to second-derivative visible absorption spectra in citrate and carbonate buffer solutions. Even for heavily overlapping spectra, adopting second-derivative spectra and multiway analysis in citrate and carbonate buffer solutions enhanced specificity for the analytes and achieved prediction performance with a coefficient of determination (R2) > 0.90, root mean square error of prediction (RMSEP) < 0.20 mg/L, and limit of detection (LOD) < 0.50 mg/L for all five analytes. The basis set expansion method succeeded in a reasonable estimation of the second-derivative spectra with the interferant. For commercial syrup samples, the present method predicted results without significant differences compared to the results measured using liquid chromatography-mass spectrometry. The proposed method provides a rapid alternative to liquid chromatography techniques for the quantification of multiple colorants in food samples.Graphical Abstract
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