Article(id=1292126482885796509, tenantId=1146029695717560320, journalId=1246415772164075586, issueId=1292126460546929080, articleNumber=null, orderNo=null, doi=10.13699/j.cnki.1001-6821.2026.03.012, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1755100800000, receivedDateStr=2025-08-14, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1785996560069, onlineDateStr=2026-08-06, pubDate=1771257600000, pubDateStr=2026-02-17, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1785996560069, onlineIssueDateStr=2026-08-06, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1785996560068, creator=13701087609, updateTime=1785996560068, updator=13701087609, issue=Issue{id=1292126460546929080, tenantId=1146029695717560320, journalId=1246415772164075586, year='2026', volume='42', issue='3', pageStart='301', pageEnd='450', issueExtLink='null', onlineDate='null', pubDate='1771257600000', pubDateStr='2026-02-17', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1785996554742, creator='13701087609', updateTime=1786014541627, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1292201903060963536, tenantId=1146029695717560320, journalId=1246415772164075586, issueId=1292126460546929080, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1292201903060963537, tenantId=1146029695717560320, journalId=1246415772164075586, issueId=1292126460546929080, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=373, endPage=380, ext={EN=ArticleExt(id=1292126483623994014, articleId=1292126482885796509, tenantId=1146029695717560320, journalId=1246415772164075586, language=EN, title=Determination of the concentration of the active component polymyxin E in the plasma of patients treated with colistimethate sodium using LC-MS/MS, columnId=1246531413395263850, journalTitle=Chinese Journal of Clinical Pharmacology, columnName=Research Method, runingTitle=null, highlight=null, articleAbstract=
Objective

To establish a liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for determining the plasma concentration of the active component polymyxin E in patients treated with colistimethate sodium.

Methods

Polymyxin B1 was used as an internal standard, and solid phase extraction (SPE) was employed to process the samples. The chromatographic column was a Kinetex C18 (3 mm×100 mm, 2.6 μm). Mobile phase A was an aqueous solution containing 0.1% formic acid and 5 mmol·L-1 ammonium acetate, and mobile phase B was a methanol solution containing 0.1% formic acid. Gradient elution was performed at a flow rate of 0.5 mL·min-1. An electrospray ionization (ESI) source was used with positive ion multiple reaction monitoring (MRM) for detection. The ion pairs for quantitative analysis were as follows: m/z 585.6→241.1 (polymyxin E1), m/z 578.6→227.2 (polymyxin E2), and m/z 602.6→101.2 (polymyxin B1). The selectivity, standard curve, residues, precision and accuracy, extraction recovery rate, matrix effect and stability of the method were investigated, and the plasma concentrations of polymyxin E1 and E2 in patients treated with colistimethate sodium were measured.

Results

The linear relationships of polymyxin E1 and E2 concentrations were good within the ranges of 0.02–3.86 μg·mL-1 and 0.03–5.65 μg·mL-1, respectively. The lower limits of quantification (LLOQ) for polymyxin E1 and E2 were 0.02 μg·mL-1 and 0.03 μg·mL-1, respectively. The standard curve equations for polymyxin E1 and E2 are Y=4.55×10-1X-2.92×10-2 (r=0.994 2)、Y=8.61×10-1X-1.38×10-2 (r=0.996 4), respectively. The within-day and day-to-day precision, accuracy, extraction recovery, matrix effects, and stability of polymyxin E1 and E2 all met the methodological requirements. Using this method, the AUC of polymyxin E in 26 patients receiving colistimethate sodium ranged from 28.42 to 317.51 μg·mL-1.

Conclusion

This method is accurate, sensitive, rapid, and stable, and can be used for the determination of the plasma concentrations of polymyxin E1 and E2 in human plasma.

, authors=Shu-ting ZHANG1, 2, Li-ying WANG1, Rong CHEN1, Yang DENG3, Nan HU1, 3, Xu-ping YANG1, authorsList=Shu-ting ZHANG, Li-ying WANG, Rong CHEN, Yang DENG, Nan HU, Xu-ping YANG, authorCompany=null, correspAuthors=Xu-ping YANG, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1292126484123116191, articleId=1292126482885796509, tenantId=1146029695717560320, journalId=1246415772164075586, language=CN, title=LC-MS/MS法测定多黏菌素E甲磺酸钠治疗患者血浆中活性成分多黏菌素E的浓度, columnId=1246531413600784769, journalTitle=中国临床药理学杂志, columnName=研究方法, runingTitle=null, highlight=null, articleAbstract=
目的

建立液相色谱串联质谱(LC-MS/MS)法测定多黏菌素E甲磺酸钠治疗患者血浆中活性成分多黏菌素E的血药浓度。

方法

以多黏菌素B1为内标,用固相萃取法处理样品。色谱柱为Kinetex C18(3 mm×100 mm,2.6 μm),流动相A为含0.1%甲酸和5 mmol·L-1乙酸铵的水溶液,流动相B为含0.1%甲酸的甲醇溶液,梯度洗脱,流速0.5 mL·min-1。选用电喷雾离子源(ESI),正离子多反应监测扫描检测(MRM),用于定量分析的离子对分别为m/z 585.6→241.1(多黏菌素E1),m/z 578.6→227.2(多黏菌素E2),m/z 602.6→101.2(多黏菌素B1),对方法的选择性、标准曲线、残留、精密度与准确度、回收率、基质效应和稳定性进行了考察。并测定使用多黏菌素E甲磺酸钠的患者血浆中多黏菌素E1、E2的血药浓度。

结果

多黏菌素E1、E2分别在0.02~3.86 μg·mL-1和0.03~5.65 μg·mL-1与测定值线性关系良好,多黏菌素E1、E2的定量下限分别为0.02 μg·mL-1和0.03 μg·mL-1标准曲线方程分别为Y=4.55×10-1X-2.92×10-2r=0.994 2)、Y=8.61×10-1X-1.38×10-2r=0.996 4)。多黏菌素E1、E2日内与日间精密度、准确度、提取回收率、基质效应、稳定性均符合方法学要求,应用本方法测定接受多黏菌素E甲磺酸钠治疗的26例患者,多黏菌素E的AUC24 h范围是28.42~317.51 mg·h-1·L-1

结论

本方法准确、灵敏、快速,稳定性良好,可用于检测人血浆中多黏菌素E1、E2的血药浓度。

, authors=张淑婷1, 2, 王莉英1, 陈荣1, 邓阳3, 胡楠1, 3, 杨旭萍1, authorsList=张淑婷, 王莉英, 陈荣, 邓阳, 胡楠, 杨旭萍, authorCompany=null, correspAuthors=杨旭萍, authorNote=

张淑婷(1999-),女,主要从事临床药学相关研究

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杨旭萍,主管药师 MP: 13584592904 E-mail:
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LC-MS/MS法测定多黏菌素E甲磺酸钠治疗患者血浆中活性成分多黏菌素E的浓度
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张淑婷 1, 2 , 王莉英 1 , 陈荣 1 , 邓阳 3 , 胡楠 1, 3 , 杨旭萍 1
中国临床药理学杂志 | 研究方法 2026,42(3): 373-380
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中国临床药理学杂志 |研究方法 2026 , 42 (3) : 373 -380
LC-MS/MS法测定多黏菌素E甲磺酸钠治疗患者血浆中活性成分多黏菌素E的浓度
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张淑婷1, 2, 王莉英1, 陈荣1, 邓阳3, 胡楠1, 3, 杨旭萍1
作者信息
  • 1.苏州大学附属第三医院/常州市第一人民医院 药学部,江苏 常州 213003
  • 2.苏州大学 药学院,江苏 苏州 215000
  • 3.长沙市第三医院 抗耐药微生物湖南省重点实验室,湖南 长沙 410015
通讯作者:
杨旭萍,主管药师 MP: 13584592904 E-mail:
作者简介:

张淑婷(1999-),女,主要从事临床药学相关研究

Determination of the concentration of the active component polymyxin E in the plasma of patients treated with colistimethate sodium using LC-MS/MS
Shu-ting ZHANG1, 2, Li-ying WANG1, Rong CHEN1, Yang DENG3, Nan HU1, 3, Xu-ping YANG1
Affiliations
  • 1.Department of Pharmacy, The Third Affiliated Hospital of Soochow University/Changzhou First People’s Hospital, Changzhou 213003, Jiangsu province, China
  • 2.College of Pharmaceutical Sciences, Soochow University, Suzhou 215000, Jiangsu province, China
  • 3.Hunan Provincial Key Laboratory of Anti-Resistance Microbial Drugs, The Third Hospital of Changsha, Changsha 410015, Hunan Province, China
出版时间: 2026-02-17 doi: 10.13699/j.cnki.1001-6821.2026.03.012
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目的

建立液相色谱串联质谱(LC-MS/MS)法测定多黏菌素E甲磺酸钠治疗患者血浆中活性成分多黏菌素E的血药浓度。

方法

以多黏菌素B1为内标,用固相萃取法处理样品。色谱柱为Kinetex C18(3 mm×100 mm,2.6 μm),流动相A为含0.1%甲酸和5 mmol·L-1乙酸铵的水溶液,流动相B为含0.1%甲酸的甲醇溶液,梯度洗脱,流速0.5 mL·min-1。选用电喷雾离子源(ESI),正离子多反应监测扫描检测(MRM),用于定量分析的离子对分别为m/z 585.6→241.1(多黏菌素E1),m/z 578.6→227.2(多黏菌素E2),m/z 602.6→101.2(多黏菌素B1),对方法的选择性、标准曲线、残留、精密度与准确度、回收率、基质效应和稳定性进行了考察。并测定使用多黏菌素E甲磺酸钠的患者血浆中多黏菌素E1、E2的血药浓度。

结果

多黏菌素E1、E2分别在0.02~3.86 μg·mL-1和0.03~5.65 μg·mL-1与测定值线性关系良好,多黏菌素E1、E2的定量下限分别为0.02 μg·mL-1和0.03 μg·mL-1标准曲线方程分别为Y=4.55×10-1X-2.92×10-2r=0.994 2)、Y=8.61×10-1X-1.38×10-2r=0.996 4)。多黏菌素E1、E2日内与日间精密度、准确度、提取回收率、基质效应、稳定性均符合方法学要求,应用本方法测定接受多黏菌素E甲磺酸钠治疗的26例患者,多黏菌素E的AUC24 h范围是28.42~317.51 mg·h-1·L-1

结论

本方法准确、灵敏、快速,稳定性良好,可用于检测人血浆中多黏菌素E1、E2的血药浓度。

多黏菌素E甲磺酸钠  /  多黏菌素E1  /  多黏菌素E2  /  液相色谱-串联质谱  /  固相萃取  /  血药浓度
Objective

To establish a liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for determining the plasma concentration of the active component polymyxin E in patients treated with colistimethate sodium.

Methods

Polymyxin B1 was used as an internal standard, and solid phase extraction (SPE) was employed to process the samples. The chromatographic column was a Kinetex C18 (3 mm×100 mm, 2.6 μm). Mobile phase A was an aqueous solution containing 0.1% formic acid and 5 mmol·L-1 ammonium acetate, and mobile phase B was a methanol solution containing 0.1% formic acid. Gradient elution was performed at a flow rate of 0.5 mL·min-1. An electrospray ionization (ESI) source was used with positive ion multiple reaction monitoring (MRM) for detection. The ion pairs for quantitative analysis were as follows: m/z 585.6→241.1 (polymyxin E1), m/z 578.6→227.2 (polymyxin E2), and m/z 602.6→101.2 (polymyxin B1). The selectivity, standard curve, residues, precision and accuracy, extraction recovery rate, matrix effect and stability of the method were investigated, and the plasma concentrations of polymyxin E1 and E2 in patients treated with colistimethate sodium were measured.

Results

The linear relationships of polymyxin E1 and E2 concentrations were good within the ranges of 0.02–3.86 μg·mL-1 and 0.03–5.65 μg·mL-1, respectively. The lower limits of quantification (LLOQ) for polymyxin E1 and E2 were 0.02 μg·mL-1 and 0.03 μg·mL-1, respectively. The standard curve equations for polymyxin E1 and E2 are Y=4.55×10-1X-2.92×10-2 (r=0.994 2)、Y=8.61×10-1X-1.38×10-2 (r=0.996 4), respectively. The within-day and day-to-day precision, accuracy, extraction recovery, matrix effects, and stability of polymyxin E1 and E2 all met the methodological requirements. Using this method, the AUC of polymyxin E in 26 patients receiving colistimethate sodium ranged from 28.42 to 317.51 μg·mL-1.

Conclusion

This method is accurate, sensitive, rapid, and stable, and can be used for the determination of the plasma concentrations of polymyxin E1 and E2 in human plasma.

colistimethate sodium  /  polymyxin E1  /  polymyxin E2  /  liquid chromatography-tandem mass spectrometry  /  solid phase extraction  /  plasma concentration
张淑婷, 王莉英, 陈荣, 邓阳, 胡楠, 杨旭萍. LC-MS/MS法测定多黏菌素E甲磺酸钠治疗患者血浆中活性成分多黏菌素E的浓度. 中国临床药理学杂志, 2026 , 42 (3) : 373 -380 . DOI: 10.13699/j.cnki.1001-6821.2026.03.012
Shu-ting ZHANG, Li-ying WANG, Rong CHEN, Yang DENG, Nan HU, Xu-ping YANG. Determination of the concentration of the active component polymyxin E in the plasma of patients treated with colistimethate sodium using LC-MS/MS[J]. Chinese Journal of Clinical Pharmacology, 2026 , 42 (3) : 373 -380 . DOI: 10.13699/j.cnki.1001-6821.2026.03.012
  • 江苏省药学会恒瑞医院药学科研基金资助项目(H202301)
  • 抗耐药微生物药物湖南省重点实验室基金资助项目(2023TP1013)
  • 常州市科技基础设施建设计划-常州市临床药学重点实验室基金资助项目(CM20223005)
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doi: 10.13699/j.cnki.1001-6821.2026.03.012
  • 接收时间:2025-08-14
  • 首发时间:2026-08-06
  • 出版时间:2026-02-17
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  • 收稿日期:2025-08-14
基金
江苏省药学会恒瑞医院药学科研基金资助项目(H202301)
抗耐药微生物药物湖南省重点实验室基金资助项目(2023TP1013)
常州市科技基础设施建设计划-常州市临床药学重点实验室基金资助项目(CM20223005)
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    1.苏州大学附属第三医院/常州市第一人民医院 药学部,江苏 常州 213003
    2.苏州大学 药学院,江苏 苏州 215000
    3.长沙市第三医院 抗耐药微生物湖南省重点实验室,湖南 长沙 410015

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杨旭萍,主管药师 MP: 13584592904 E-mail:
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2种不同金属材料的力学参数

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Genus
种数
Number of
species
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Percentage of total
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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