A New Quantification Method Using Electrochemical Mass Spectrometry
A New Quantification Method Using Electrochemical Mass Spectrometry
复制标题
使用电化学质谱法的新定量方法
DOI:
10.1007/s13361-018-2116-6
复制
发表时间:
2019
影响因子:
3.2
通讯作者:
Chen, Hao
中科院分区:
文献类型:
--
作者:
Xu, Chang;Zheng, Qiuling;Zhao, Pengyi;Paterson, Joseph;Chen, Hao
Mass spectrometry-based quantification method has advanced rapidly. In general, the methods for accurate quantification rely on the use of authentic target compounds or isotope-labeled compounds as standards, which might be not available or difficult to synthesize. To tackle this grand challenge, this paper presents a novel approach, based on electrochemistry (EC) combined with mass spectrometry (MS). In this approach, a target compound is allowed to undergo electrochemical oxidation and then subject to MS analysis. The oxidation current recorded from electrochemistry (EC) measurement provides information about the amount of the oxidized analyte, based on the Faraday’s Law. On the other hand, the oxidation reaction yield can be determined from the analyte MS signal changes upon electrolysis. Therefore, the total amount of analyte can be determined. In combination with liquid chromatography (LC), the method can be applicable to mixture analysis. The striking strength of such a method for quantitation is that neither standard compound nor calibration curve is required. Various analyte molecules such as dopamine, norepinephrine, and rutin as well as peptide glutathione in low quantity were successfully quantified using our method with the quantification error ranging from − 2.6 to + 4.6%. Analyte in a complicated matrix (e.g., uric acid in urine) was also accurately measured.
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DOI:
10.1039/c1an15286f
发表时间:
2011-10-07
期刊:
The Analyst
影响因子:
--
作者:
Cui W;Rohrs HW;Gross ML
通讯作者:
Gross ML
影响因子:
7.4
作者:
Zhang, Yun;Cui, Weidong;Zhang, Hao;Dewald, Howard D.;Chen, Hao
通讯作者:
Chen, Hao
影响因子:
46.2
作者:
Brodbelt JS
通讯作者:
Brodbelt JS
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
A. Q. Pedro;Soares Rf;D. Oppolzer;F. M. Santos;Rocha La;A. M. Gonçalves;M. Bonifácio;J. Queiroz;E. Gallardo;L. Passarinha
通讯作者:
L. Passarinha
影响因子:
4.4
作者:
Clough, Timothy;Key, Melissa;Vitek, Olga
通讯作者:
Vitek, Olga