Correction to “A LC–MS/MS Method for the Simultaneous Determination of 6-Cyanodopamine, 6-Nitrodopamine, 6-Nitrodopa, 6-Nitroadrenaline and 6-Bromodopamine in Human Plasma and Its Clinical Application in Patients With Chronic Kidney Disease”
{"title":"Correction to “A LC–MS/MS Method for the Simultaneous Determination of 6-Cyanodopamine, 6-Nitrodopamine, 6-Nitrodopa, 6-Nitroadrenaline and 6-Bromodopamine in Human Plasma and Its Clinical Application in Patients With Chronic Kidney Disease”","authors":"","doi":"10.1002/bmc.70207","DOIUrl":null,"url":null,"abstract":"<p>\n <span>Ribeiro, LF</span>, <span>Babadopulos, T</span>, <span>Oliveira, M</span>, <span>Nishimaru, F</span>, <span>Zatz, R</span>, <span>Motta, R</span>, <span>Moraes, O</span>, <span>Moraes, E</span>, <span>Peterson, LW</span>, <span>De Nucci, G</span>. <span>A LC–MS/MS Method for the simultaneous Determination of 6-Cyanodopamine, 6-Nitrodopamine, 6-Nitrodopa, 6-Nitroadrenaline, and 6-Bromodopamine in Human Plasma and Its Clinical Application in Patients With Chronic Kidney Disease</span>, <i>Biomedical Chromatography</i>. <span>2024</span> Volume <span>38</span>, Issue <span>8</span> https://doi.org/10.1002/bmc.5896.\n </p><p>We identified two errors that need to be corrected in the manuscript. The mobile phases A and B are inverted, and in the sample extraction procedure, it is written that a wash and sample dilution were made with ammonium acetate, which in reality were made with deionized water.</p><p>In paragraph 8 of “2.5 Extraction procedure” section, the text in the second sentence: “Ammonium acetate (200 mm, 0.5 ml) was added, and the sample was homogenized under vortex for 20 s” was incorrect. This should have read: “Deionized H<sub>2</sub>O (0.5 ml) was added, and the sample was homogenized under vortex for 20 s”.</p><p>Also in paragraph 8 of “2.5 Extraction procedure” section, the text in the fifth sentence: “The samples (1 ml) were applied to the SPE cartridges followed by washing with 200 mm ammonium acetate (1.5 ml).” was incorrect. This should have read: “The samples (1 ml) were applied to the SPE cartridges followed by washing with deionized water (1.5 ml).”</p><p>In the Abstract, the text in the second sentence: “… perfused with 82% mobile phase A (acetonitrile–H<sub>2</sub>O; 90:10, v/v) + 0.4% acetic acid and 18% mobile phase B (deionized H<sub>2</sub>O)+ 0.2% formic acid …” was incorrect. This should have read: “… perfused with 82% mobile phase A (deionized H<sub>2</sub>O)+ 0.2% formic acid and 18% mobile phase B (acetonitrile–H<sub>2</sub>O; 90:10, v/v) + 0.4% acetic acid …”.</p><p>In paragraph 9 of “2.6 Quantification of Catecholamines” section, the text in the second sentence: “… perfused by 82% of mobile phase A (acetonitrile–H2O; 90:10, v/v) + 0.4% acetic acid and 18% mobile phase B (deionized H2O) + 0.2% formic acid …” was incorrect. This should have read: “… perfused by 82% of mobile phase A (deionized H2O) + 0.2% formic acid and 18% mobile phase B (acetonitrile–H2O; 90:10, v/v) + 0.4% acetic acid …”.</p><p>In the caption of fig. 4, of “3.3 LC-MS/MS analysis” section, the second sentence of the caption: “Chromatographic conditions: mobile phase A, 90:10 (v/v) acetonitrile/water + 0.4% acetic acid; mobile phase B, water + 0.2% formic acid; isocratic flow, composed of 82% mobile phase A and 18% mobile phase B;” was incorrect. This should have read: “Chromatographic conditions: mobile phase A, water + 0.2% formic acid; mobile phase B, 90:10 (v/v) acetonitrile/water + 0.4% acetic acid; isocratic flow, composed of 82% mobile phase A and 18% mobile phase B;”.</p><p>We apologize for these errors.</p><p>Luiz Fernando Ribeiro, Ph.D, correspondence author</p>","PeriodicalId":8861,"journal":{"name":"Biomedical Chromatography","volume":"39 10","pages":""},"PeriodicalIF":1.7000,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://analyticalsciencejournals.onlinelibrary.wiley.com/doi/epdf/10.1002/bmc.70207","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biomedical Chromatography","FirstCategoryId":"3","ListUrlMain":"https://analyticalsciencejournals.onlinelibrary.wiley.com/doi/10.1002/bmc.70207","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"BIOCHEMICAL RESEARCH METHODS","Score":null,"Total":0}
引用次数: 0
Abstract
Ribeiro, LF, Babadopulos, T, Oliveira, M, Nishimaru, F, Zatz, R, Motta, R, Moraes, O, Moraes, E, Peterson, LW, De Nucci, G. A LC–MS/MS Method for the simultaneous Determination of 6-Cyanodopamine, 6-Nitrodopamine, 6-Nitrodopa, 6-Nitroadrenaline, and 6-Bromodopamine in Human Plasma and Its Clinical Application in Patients With Chronic Kidney Disease, Biomedical Chromatography. 2024 Volume 38, Issue 8 https://doi.org/10.1002/bmc.5896.
We identified two errors that need to be corrected in the manuscript. The mobile phases A and B are inverted, and in the sample extraction procedure, it is written that a wash and sample dilution were made with ammonium acetate, which in reality were made with deionized water.
In paragraph 8 of “2.5 Extraction procedure” section, the text in the second sentence: “Ammonium acetate (200 mm, 0.5 ml) was added, and the sample was homogenized under vortex for 20 s” was incorrect. This should have read: “Deionized H2O (0.5 ml) was added, and the sample was homogenized under vortex for 20 s”.
Also in paragraph 8 of “2.5 Extraction procedure” section, the text in the fifth sentence: “The samples (1 ml) were applied to the SPE cartridges followed by washing with 200 mm ammonium acetate (1.5 ml).” was incorrect. This should have read: “The samples (1 ml) were applied to the SPE cartridges followed by washing with deionized water (1.5 ml).”
In the Abstract, the text in the second sentence: “… perfused with 82% mobile phase A (acetonitrile–H2O; 90:10, v/v) + 0.4% acetic acid and 18% mobile phase B (deionized H2O)+ 0.2% formic acid …” was incorrect. This should have read: “… perfused with 82% mobile phase A (deionized H2O)+ 0.2% formic acid and 18% mobile phase B (acetonitrile–H2O; 90:10, v/v) + 0.4% acetic acid …”.
In paragraph 9 of “2.6 Quantification of Catecholamines” section, the text in the second sentence: “… perfused by 82% of mobile phase A (acetonitrile–H2O; 90:10, v/v) + 0.4% acetic acid and 18% mobile phase B (deionized H2O) + 0.2% formic acid …” was incorrect. This should have read: “… perfused by 82% of mobile phase A (deionized H2O) + 0.2% formic acid and 18% mobile phase B (acetonitrile–H2O; 90:10, v/v) + 0.4% acetic acid …”.
In the caption of fig. 4, of “3.3 LC-MS/MS analysis” section, the second sentence of the caption: “Chromatographic conditions: mobile phase A, 90:10 (v/v) acetonitrile/water + 0.4% acetic acid; mobile phase B, water + 0.2% formic acid; isocratic flow, composed of 82% mobile phase A and 18% mobile phase B;” was incorrect. This should have read: “Chromatographic conditions: mobile phase A, water + 0.2% formic acid; mobile phase B, 90:10 (v/v) acetonitrile/water + 0.4% acetic acid; isocratic flow, composed of 82% mobile phase A and 18% mobile phase B;”.
We apologize for these errors.
Luiz Fernando Ribeiro, Ph.D, correspondence author
期刊介绍：
Biomedical Chromatography is devoted to the publication of original papers on the applications of chromatography and allied techniques in the biological and medical sciences. Research papers and review articles cover the methods and techniques relevant to the separation, identification and determination of substances in biochemistry, biotechnology, molecular biology, cell biology, clinical chemistry, pharmacology and related disciplines. These include the analysis of body fluids, cells and tissues, purification of biologically important compounds, pharmaco-kinetics and sequencing methods using HPLC, GC, HPLC-MS, TLC, paper chromatography, affinity chromatography, gel filtration, electrophoresis and related techniques.
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