Article(id=1193674744454152486, tenantId=1146029695717560320, journalId=1190317699101192196, issueId=1193674740352119804, articleNumber=1001-2494(2025)06-0646-06, orderNo=null, doi=10.11669/cpj.2025.06.011, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1728403200000, receivedDateStr=2024-10-09, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1762523836481, onlineDateStr=2025-11-07, pubDate=1742572800000, pubDateStr=2025-03-22, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1762523836481, onlineIssueDateStr=2025-11-07, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1762523836481, creator=13701087609, updateTime=1762523836481, updator=13701087609, issue=Issue{id=1193674740352119804, tenantId=1146029695717560320, journalId=1190317699101192196, year='2025', volume='60', issue='6', pageStart='553', pageEnd='662', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1762523835503, creator=13701087609, updateTime=1762524041683, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1193675605205025683, tenantId=1146029695717560320, journalId=1190317699101192196, issueId=1193674740352119804, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1193675605205025684, tenantId=1146029695717560320, journalId=1190317699101192196, issueId=1193674740352119804, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=646, endPage=651, ext={EN=ArticleExt(id=1193674744676450600, articleId=1193674744454152486, tenantId=1146029695717560320, journalId=1190317699101192196, language=EN, title=Analysis Method for In Vitro Evaluation of Tobramycin and Dexamethasone Eye Drops Based on LC-MS/MS, columnId=null, journalTitle=Chinese Pharmaceutical Journal, columnName=null, runingTitle=null, highlight=null, articleAbstract=

OBJECTIVE To establish a liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for simultaneous determination of tobramycin and dexamethasone in artificial tears, and detect drug use concentration in human tears and in vitro release. METHODS Zorbax Eclipse plus-C8 column was used with 2 mmol·L-1 ammonium acetate aqueous solution as mobile phase A and 90% methanol aqueous solution as mobile phase B for gradient elution. The flow rate was 0.5 mL·min-1, the column temperature was maintained at 40 ℃, and the injection volume was 2 μL. A mass spectrometer was used with ESI ionization mode, MRM mode, and positive ion mode. RESULTS Tobramycin and dexamethasone showed good linearity in the concentration range of 200-5 000 ng·mL-1, and the lower limit of quantification was 200 ng·mL-1. CONCLUSION The established method is rapid, efficient, accurate and sensitive, and can be used for the detection of drug concentration in tears and in vitro release test of tobramycin and dexamethasone eye drops.

, correspAuthors=Zhu LIU, 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, authorCompany=null, fund=null, authors=null, authorsList=Shuang CHEN, Xiaoqin LIU, Xiaoling ZHENG, Yunfeng SHI, Jia ZHU, Ying LUO, Zhu LIU), CN=ArticleExt(id=1193674846497374717, articleId=1193674744454152486, tenantId=1146029695717560320, journalId=1190317699101192196, language=CN, title=基于LC-MS/MS技术的妥布霉素地塞米松滴眼液体外评价的分析方法研究, columnId=1190352405612040510, journalTitle=中国药学杂志, columnName=论著, runingTitle=null, highlight=null, articleAbstract=

目的 建立液相色谱-串联质谱联用(LC-MS/MS) 法同时测定人工泪液中妥布霉素和地塞米松的浓度,用于妥布霉素地塞米松滴眼液体外释放试验的研究中妥布霉素和地塞米松浓度的检测。方法 采用Agilent Zorbax Eclipse plus-C8色谱柱,以2 mmol·L-1乙酸铵水溶液为流动相A,体积分数90%甲醇水溶液为流动相B,梯度洗脱,流速0.5 mL·min-1,柱温40 ℃,进样体积2 μL;采用质谱检测器,电喷雾离子源(ESI)离子化方式,多重反应监测(MRM)模式,正离子模式。结果 妥布霉素、地塞米松均在200~5 000 ng·mL-1内线性良好,定量下限均为200 ng·mL-1。妥布霉素、地塞米松在样品处理后放置进样器48 h条件下稳定性良好。 结论 本研究建立的方法快速、高效、准确、灵敏,可用于妥布霉素地塞米松滴眼液在人工泪液中的药物浓度检测和体外释放试验的研究。

, correspAuthors=刘柱, authorNote=null, correspAuthorsNote=
*刘柱,男,硕士,高级工程师 研究方向:质量分析技术 Tel:(0571)86468480
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陈爽,女,硕士,副主任药师 研究方向:药物分析与质量控制

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陈爽,女,硕士,副主任药师 研究方向:药物分析与质量控制

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陈爽,女,硕士,副主任药师 研究方向:药物分析与质量控制

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J Shenyang Pharm Univ(沈阳药科大学学报), 2023, 40(9): 1165-1172., articleTitle=Simultaneous determination of aspirin and salicylic acid in human plasma by LC-MS/MS, refAbstract=null), Reference(id=1193712812598981247, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1193674744454152486, doi=null, pmid=null, pmcid=null, year=2023, volume=58, issue=14, pageStart=1327, pageEnd=1333, url=null, language=null, rfNumber=[12], rfOrder=11, authorNames=MA L Y, WANG L M, ZHANG G C, journalName=Chin Pharm J(中国药学杂志), refType=null, unstructuredReference=MA L Y, WANG L M, ZHANG G C, et al. Using parallel artificial membrane permeability assay to test the in vitro FLUX of quetiapine fumatare tablets from different manufactures[J]. Chin Pharm J(中国药学杂志), 2023, 58(14): 1327-1333., articleTitle=Using parallel artificial membrane permeability assay to test the in vitro FLUX of quetiapine fumatare tablets from different manufactures, refAbstract=null), Reference(id=1193712812657701504, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1193674744454152486, doi=null, pmid=null, pmcid=null, year=2023, volume=58, issue=19, pageStart=1752, pageEnd=1758, url=null, language=null, rfNumber=[13], rfOrder=12, authorNames=GUO H H, XIE Q L, HONG Z, journalName=Chin Pharm J(中国药学杂志), refType=null, unstructuredReference=GUO H H, XIE Q L, HONG Z, et al. Preparation and in vitro drug release of diclofenac sodium microcapsules[J]. Chin Pharm J(中国药学杂志), 2023, 58(19): 1752-1758., articleTitle=Preparation and in vitro drug release of diclofenac sodium microcapsules, refAbstract=null)], funds=[Fund(id=1193712810615075442, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1193674744454152486, awardId=2024016, language=CN, fundingSource=浙江省药品监管系统科技计划项目资助(2024016), fundOrder=null, country=null), Fund(id=1193712810673795699, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1193674744454152486, awardId=2022001, language=CN, fundingSource=浙江省药品监管系统科技计划项目资助(2022001), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1193712805229589036, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1193674744454152486, xref=1, ext=[AuthorCompanyExt(id=1193712805242171949, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1193674744454152486, companyId=1193712805229589036, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1 Zhejiang Institute for Food and Drug Control, Hangzhou 310014, China), AuthorCompanyExt(id=1193712805250560558, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1193674744454152486, companyId=1193712805229589036, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1 浙江省食品药品检验研究院, 杭州 310014)]), AuthorCompany(id=1193712805326058031, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1193674744454152486, xref=2, ext=[AuthorCompanyExt(id=1193712805334446640, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1193674744454152486, companyId=1193712805326058031, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2 NMPA Key Laboratory for Core Technology of Generic Drug Evaluation, Hangzhou 310014, China), AuthorCompanyExt(id=1193712805347029553, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1193674744454152486, companyId=1193712805326058031, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2 国家药品监督管理局仿制药评价关键技术重点实验室, 杭州 310014)])], figs=[ArticleFig(id=1193712809377755748, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1193674744454152486, language=EN, label=Fig.1, caption=Typical mass spectrograph of TOB and DXM, figureFileSmall=ND8SgwHuG1xCsvrFfKHROQ==, figureFileBig=TBO0N9iD37k3KQCizrk6Eg==, tableContent=null), ArticleFig(id=1193712809449058917, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1193674744454152486, language=CN, label=图1, caption=TOB和DXM的典型质谱图, figureFileSmall=ND8SgwHuG1xCsvrFfKHROQ==, figureFileBig=TBO0N9iD37k3KQCizrk6Eg==, tableContent=null), ArticleFig(id=1193712809549722214, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1193674744454152486, language=EN, label=Fig.2, caption=MRM chromatograms of TOB(A) and DXM(B)

1-Blank matrix; 2-Blank matrix spiked with TOB; 3-Blank matrix spiked with DMX.

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1-空白基质;2-空白基质+妥布霉素;3-空白基质+地塞米松。

, figureFileSmall=Fcq85rbzytxQxKqdNgeZFQ==, figureFileBig=qrlKtYaGFhq9u18BCtv+IA==, tableContent=null), ArticleFig(id=1193712809730077288, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1193674744454152486, language=EN, label=Fig.3, caption=DMX Release profiles of TOB/DXM Eye Drops, figureFileSmall=uu0oMJzE58FjLxkgaPlYsg==, figureFileBig=f/jqUQEUoKsBnFt1Mxw9gg==, tableContent=null), ArticleFig(id=1193712809805574761, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1193674744454152486, language=CN, label=图3, caption=妥布霉素地塞米松滴眼液中DXM体外释放速率图, figureFileSmall=uu0oMJzE58FjLxkgaPlYsg==, figureFileBig=f/jqUQEUoKsBnFt1Mxw9gg==, tableContent=null), ArticleFig(id=1193712809864295018, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1193674744454152486, language=EN, label=Tab.1, caption=

MRM parameters for TOB and DMX

, figureFileSmall=null, figureFileBig=null, tableContent=
Analyte Mr m/z ( Q1) m/z(Q3) DP/V CE/eV
TOB 467.5 468.4[M+H]+ 163.2 70 26
DXM 392.5 393.2[M+H]+ 237.1 40 18
), ArticleFig(id=1193712809935598187, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1193674744454152486, language=CN, label=表1, caption=

妥布霉素(TOB)和地塞米松(DXM)的多重反应监测(MRM)最优参数

, figureFileSmall=null, figureFileBig=null, tableContent=
Analyte Mr m/z ( Q1) m/z(Q3) DP/V CE/eV
TOB 467.5 468.4[M+H]+ 163.2 70 26
DXM 392.5 393.2[M+H]+ 237.1 40 18
), ArticleFig(id=1193712810015289964, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1193674744454152486, language=EN, label=Tab.2, caption=

Precision and accuracy for the determination of TOB and DXM in artificial tears. $\bar{x} \pm s$

, figureFileSmall=null, figureFileBig=null, tableContent=
Analyte ρspiked
/ng·mL-1
Intra-day(n=6) Intra-day(n=18)
ρmean/ng·mL-1 CV/% RE/% ρmean/ng·mL-1 CV/% RE/%
TOB 200 204.8 ±4.2 2.1 2.4 204.4 ±7.3 3.6 2.0
208.7 ±8.4 4.0 4.3
198.5 ±5.3 2.7 -0.8
600 609.4 ±8.1 1.3 1.6 600.4 ±11.1 1.8 0.1
596.4 ±5.1 0.9 -0.6
595.3 ±13.4 2.3 -0.8
1 500 1 536.2 ±32.1 2.1 2.4 1 541.2 ±41.7 2.7 2.7
1 569.1 ±39.3 2.5 4.6
1 517.7 ±39.4 2.6 1.1
3 750 3 921.4 ±73.8 1.9 4.6 3 779.3 ±138.4 3.6 0.8
3 769.3 ±96.9 2.5 0.5
3 648.3 ±70.4 1.9 -2.7
DXM 200 186.5 ±5.5 2.9 -6.8 197.3 ±10.1 5.1 -1.3
205.1 ±7.1 3.4 2.6
200.4 ±6.6 3.3 0.2
600 591.4 ±15.6 2.6 -1.4 596.2 ±17.6 2.9 -0.6
590.0 ±21.9 3.7 -1.7
607.4 ±10.0 1.7 1.2
1 500 1 569.7 ±28.3 1.8 4.6 1 553.7 ±40.4 2.6 3.5
1 568.2 ±15.3 1.0 4.5
1 523.6 ±53.4 3.5 1.5
3 750 3 793.8 ±65.2 1.7 1.1 3 780.4 ±75.3 2.0 0.8
3 839.3 ±44.1 1.1 2.4
3 710.6 ±52.7 1.4 -1.1
), ArticleFig(id=1193712810103370349, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1193674744454152486, language=CN, label=表2, caption=

人工泪液中TOB和DXM测定方法的准确度与精密度。$\bar{x} \pm s$

, figureFileSmall=null, figureFileBig=null, tableContent=
Analyte ρspiked
/ng·mL-1
Intra-day(n=6) Intra-day(n=18)
ρmean/ng·mL-1 CV/% RE/% ρmean/ng·mL-1 CV/% RE/%
TOB 200 204.8 ±4.2 2.1 2.4 204.4 ±7.3 3.6 2.0
208.7 ±8.4 4.0 4.3
198.5 ±5.3 2.7 -0.8
600 609.4 ±8.1 1.3 1.6 600.4 ±11.1 1.8 0.1
596.4 ±5.1 0.9 -0.6
595.3 ±13.4 2.3 -0.8
1 500 1 536.2 ±32.1 2.1 2.4 1 541.2 ±41.7 2.7 2.7
1 569.1 ±39.3 2.5 4.6
1 517.7 ±39.4 2.6 1.1
3 750 3 921.4 ±73.8 1.9 4.6 3 779.3 ±138.4 3.6 0.8
3 769.3 ±96.9 2.5 0.5
3 648.3 ±70.4 1.9 -2.7
DXM 200 186.5 ±5.5 2.9 -6.8 197.3 ±10.1 5.1 -1.3
205.1 ±7.1 3.4 2.6
200.4 ±6.6 3.3 0.2
600 591.4 ±15.6 2.6 -1.4 596.2 ±17.6 2.9 -0.6
590.0 ±21.9 3.7 -1.7
607.4 ±10.0 1.7 1.2
1 500 1 569.7 ±28.3 1.8 4.6 1 553.7 ±40.4 2.6 3.5
1 568.2 ±15.3 1.0 4.5
1 523.6 ±53.4 3.5 1.5
3 750 3 793.8 ±65.2 1.7 1.1 3 780.4 ±75.3 2.0 0.8
3 839.3 ±44.1 1.1 2.4
3 710.6 ±52.7 1.4 -1.1
), ArticleFig(id=1193712810208227950, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1193674744454152486, language=EN, label=Tab.3, caption=

Stability of TOB and DXM in blank matrix stored for 48 h at 15 ℃. n=6,$\bar{x} \pm s$

, figureFileSmall=null, figureFileBig=null, tableContent=
Analyte ρspiked/ng·mL-1 ρmean/ng·mL-1 CV/% RE/%
TOB 600.0 613.8 0.7 2.3
3 750.2 3 726.2 2.4 -0.6
DXM 600.0 644.5 1.7 7.4
3 750.5 3 763.3 1.2 0.3
), ArticleFig(id=1193712810279531119, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1193674744454152486, language=CN, label=表3, caption=

空白基质中TOB和DXM的稳定性考察(15 ℃,48 h)。n=6,$\bar{x} \pm s$

, figureFileSmall=null, figureFileBig=null, tableContent=
Analyte ρspiked/ng·mL-1 ρmean/ng·mL-1 CV/% RE/%
TOB 600.0 613.8 0.7 2.3
3 750.2 3 726.2 2.4 -0.6
DXM 600.0 644.5 1.7 7.4
3 750.5 3 763.3 1.2 0.3
), ArticleFig(id=1193712810363417200, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1193674744454152486, language=EN, label=Tab.4, caption=

DXM IVRT data of tobramycin and dexamethasone eye drops. n=6

, figureFileSmall=null, figureFileBig=null, tableContent=
Items
t/h
TS RLD
AMT/% Qn/μg·cm-2 AMT/% Qn/μg·cm-2
AVG CV/% AVG CV/% AVG CV/% AVG CV/%
0.5 11.7 3.6 66.2 3.5 7.9 3.5 44.76 2.4
1 17 3.6 95.9 3.7 14 3.7 79.24 1.7
2 25.5 5.7 143.9 5.7 25.6 5.7 144.71 1.7
3 32.8 6.4 185.2 6.4 35.8 6.4 202.13 2
4 38.3 5.8 216.3 5.8 45.4 5.8 256.5 2
5 42.2 4.4 238.5 4.4 54.3 4.4 306.64 2.4
6 45.4 3.3 256.2 3.2 61.3 3.2 346.15 3
), ArticleFig(id=1193712810438914673, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1193674744454152486, language=CN, label=表4, caption=

妥布霉素地塞米松滴眼液中DXM体外释放试验数据。n=6

, figureFileSmall=null, figureFileBig=null, tableContent=
Items
t/h
TS RLD
AMT/% Qn/μg·cm-2 AMT/% Qn/μg·cm-2
AVG CV/% AVG CV/% AVG CV/% AVG CV/%
0.5 11.7 3.6 66.2 3.5 7.9 3.5 44.76 2.4
1 17 3.6 95.9 3.7 14 3.7 79.24 1.7
2 25.5 5.7 143.9 5.7 25.6 5.7 144.71 1.7
3 32.8 6.4 185.2 6.4 35.8 6.4 202.13 2
4 38.3 5.8 216.3 5.8 45.4 5.8 256.5 2
5 42.2 4.4 238.5 4.4 54.3 4.4 306.64 2.4
6 45.4 3.3 256.2 3.2 61.3 3.2 346.15 3
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基于LC-MS/MS技术的妥布霉素地塞米松滴眼液体外评价的分析方法研究
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陈爽 1, 2 , 刘小勤 1, 2 , 郑小玲 1 , 石云峰 1, 2 , 朱价 1 , 罗英 1, 2 , 刘柱 1, *
中国药学杂志 | 论著 2025,60(6): 646-651
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中国药学杂志 | 论著 2025, 60(6): 646-651
基于LC-MS/MS技术的妥布霉素地塞米松滴眼液体外评价的分析方法研究
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陈爽1, 2, 刘小勤1, 2, 郑小玲1, 石云峰1, 2, 朱价1, 罗英1, 2, 刘柱1, *
作者信息
  • 1 浙江省食品药品检验研究院, 杭州 310014
  • 2 国家药品监督管理局仿制药评价关键技术重点实验室, 杭州 310014
  • 陈爽,女,硕士,副主任药师 研究方向:药物分析与质量控制

通讯作者:

*刘柱,男,硕士,高级工程师 研究方向:质量分析技术 Tel:(0571)86468480
Analysis Method for In Vitro Evaluation of Tobramycin and Dexamethasone Eye Drops Based on LC-MS/MS
Shuang CHEN1, 2, Xiaoqin LIU1, 2, Xiaoling ZHENG1, Yunfeng SHI1, 2, Jia ZHU1, Ying LUO1, 2, Zhu LIU1, *
Affiliations
  • 1 Zhejiang Institute for Food and Drug Control, Hangzhou 310014, China
  • 2 NMPA Key Laboratory for Core Technology of Generic Drug Evaluation, Hangzhou 310014, China
出版时间: 2025-03-22 doi: 10.11669/cpj.2025.06.011
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目的 建立液相色谱-串联质谱联用(LC-MS/MS) 法同时测定人工泪液中妥布霉素和地塞米松的浓度,用于妥布霉素地塞米松滴眼液体外释放试验的研究中妥布霉素和地塞米松浓度的检测。方法 采用Agilent Zorbax Eclipse plus-C8色谱柱,以2 mmol·L-1乙酸铵水溶液为流动相A,体积分数90%甲醇水溶液为流动相B,梯度洗脱,流速0.5 mL·min-1,柱温40 ℃,进样体积2 μL;采用质谱检测器,电喷雾离子源(ESI)离子化方式,多重反应监测(MRM)模式,正离子模式。结果 妥布霉素、地塞米松均在200~5 000 ng·mL-1内线性良好,定量下限均为200 ng·mL-1。妥布霉素、地塞米松在样品处理后放置进样器48 h条件下稳定性良好。 结论 本研究建立的方法快速、高效、准确、灵敏,可用于妥布霉素地塞米松滴眼液在人工泪液中的药物浓度检测和体外释放试验的研究。

液相色谱-串联质谱联用  /  体外评价  /  人工泪液  /  妥布霉素  /  地塞米松

OBJECTIVE To establish a liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for simultaneous determination of tobramycin and dexamethasone in artificial tears, and detect drug use concentration in human tears and in vitro release. METHODS Zorbax Eclipse plus-C8 column was used with 2 mmol·L-1 ammonium acetate aqueous solution as mobile phase A and 90% methanol aqueous solution as mobile phase B for gradient elution. The flow rate was 0.5 mL·min-1, the column temperature was maintained at 40 ℃, and the injection volume was 2 μL. A mass spectrometer was used with ESI ionization mode, MRM mode, and positive ion mode. RESULTS Tobramycin and dexamethasone showed good linearity in the concentration range of 200-5 000 ng·mL-1, and the lower limit of quantification was 200 ng·mL-1. CONCLUSION The established method is rapid, efficient, accurate and sensitive, and can be used for the detection of drug concentration in tears and in vitro release test of tobramycin and dexamethasone eye drops.

LC-MS/MS  /  in vitro evaluation  /  artificial tear  /  tobramycin  /  dexamethasone
陈爽, 刘小勤, 郑小玲, 石云峰, 朱价, 罗英, 刘柱. 基于LC-MS/MS技术的妥布霉素地塞米松滴眼液体外评价的分析方法研究. 中国药学杂志, 2025 , 60 (6) : 646 -651 . DOI: 10.11669/cpj.2025.06.011
Shuang CHEN, Xiaoqin LIU, Xiaoling ZHENG, Yunfeng SHI, Jia ZHU, Ying LUO, Zhu LIU. Analysis Method for In Vitro Evaluation of Tobramycin and Dexamethasone Eye Drops Based on LC-MS/MS[J]. Chinese Pharmaceutical Journal, 2025 , 60 (6) : 646 -651 . DOI: 10.11669/cpj.2025.06.011
妥布霉素地塞米松滴眼液是抗生素妥布霉素(tobramycin,TOB)与糖皮质激素地塞米松(dexamethasone,DXM)的复合制剂,具有抗炎作用,是眼科领域广泛应用的药物,其能够深入眼部组织,针对眼部感染和炎症进行治疗,是眼部手术后常用药[1]。依据美国食品药品监督管理局(FDA)指导原则[2-4],在进行此类眼用制剂的一致性评价研究时,受试者应为接受适应证白内障手术的患者,检测指标为房水中的药物浓度。然而,体内试验往往受限于伦理、成本、样品量少及操作复杂性等因素。因此,开发一种可靠的体外替代评价方法显得尤为关键,这种方法需要不仅能够模拟体内环境,还应能在减少动物和人体试验的同时,提供准确的药物性能评估。以人工泪液为介质的体外释放试验和体外眼角膜渗透试验是滴眼液体外替代评价的可行方法,而如何实现同时检测人工泪液中微量TOB和DXM的浓度,是妥布霉素地塞米松滴眼液体外评价研究必须先要解决的问题。虽然各国药典均收载了妥布霉素地塞米松滴眼液,但均采用两种不同方法分别检测TOB和DXM[5-6]。另外,含量测定方法的检测灵敏度也无法满足本品体外释放、眼角膜渗透研究的检测需求。目前笔者也未见相关文献报道人工泪液中同时检测微量TOB和DXM的测定方法。本研究以人工泪液为介质,基于液相色谱-串联质谱技术(LC-MS/MS),建立了一种快速、高效、准确、灵敏的可同时检测人工泪液中TOB和DXM浓度的方法,并对方法的专属性、线性、定量限、准确度及精密度等方面开展了方法学研究,可应用于妥布霉素地塞米松滴眼液体外释放、眼角膜渗透研究。
SHIMADZU LC-40D XR型高效液相色谱仪(日本岛津公司);QTRAP 6500型三重四级杆质谱仪(ESI源,Analyst 1.7.3数据采集软件,美国AB Sciex公司);MCA3.6P-2CCN-M型百万分之一电子天平[赛多利斯科学仪器(北京)有限公司];MTV-100型涡旋混合仪(杭州奥盛仪器有限公司);Milli-Q型纯水仪(美国Millipore公司)。
妥布霉素地塞米松滴眼液(批号:VDY51A;240801);TOB对照品(含量:91.4%,批号:130527-200402)、DXM对照品(含量:99.8%,批号:100129-201907)(中国食品药品检定研究院);碳酸氢钠、氯化钾、氯化钠、无水氯化钙、乙酸铵均为分析纯;甲醇为色谱纯。
人工泪液作空白基质,分别称取碳酸氢钠4.36 g,氯化钾2.76 g,氯化钠13.56 g,无水氯化钙63.41 mg至烧杯中,加2 000 mL水溶解,混匀,过滤。
取TOB对照品、DXM对照品各适量,精密称定,分别加入适量的体积分数50%甲醇,涡旋混合,配制成0.250 mg·mL-1的对照品储备液。分别移取TOB、DXM对照品储备液各1 mL,加入体积分数50%甲醇8 mL,混匀,配制成0.025/0.025 mg·mL-1 TOB/DXM混合对照品储备液。精密量取储备液适量,用人工泪液稀释成质量浓度为5 000、4 000、3 000、2 000、1 200、800、400、200 ng·mL-1的系列对照品溶液和3 750、1 500、600、200 ng·mL-1的质控溶液。
供试样品为体外透皮试验收集的供试品溶液。采用的是改良型 Franz 立体扩散装置,释放面积为 1.77 cm2,接受室体积为 12 mL,将预处理的人工合成膜固定在供体室与接受室之间,分别取约5 mL妥布霉素地塞米松滴眼液在选定的人工合成膜上,保持封闭状态防止溶液蒸发和成分改变,在接受室中加入温度为(32±1) ℃的12 mL体外释放介质,使人工膜恰好与体外释放介质液面接触,开启磁力搅拌器(转速:600 r·min-1)不断搅拌,使药物自然释放,分别在0.5、1、2、4、6 h取样12 mL,作为供试品溶液。
吸取500 μL样品溶液(对照品溶液或供试品溶液);对于空白样品,加入500 μL空白基质(人工泪液)至96孔板中,加入500 μL体积分数50%甲醇溶液,混匀,取2 μL进样分析。
采用Agilent Zorbax Eclipse plus-C8(3 mm×100 mm,1.8 μm),流动相A为2 mmol·L-1乙酸铵水溶液,用甲酸调节pH至3.2,流动相B为体积分数90%甲醇水溶液,梯度洗脱,洗脱梯度程序如下:0~0.30 min,2.0%B;0.30~2.00 min,2.0%B→95.0%B;2.00~4.00 min,95.0% B;4.00~4.01 min,95.0%B→2.0%B;4.01~5.50 min,2.0%B。柱温40 ℃,流速0.5 mL·min-1,进样量2 μL。
采用多重反应监测(MRM)的扫描方式下正离子监测,离子源为电喷雾离子源(ESI),离子化电压(IS)为5 500 V,离子源温度(TEM)为400 ℃,喷雾气 (GS1,N2)为50 kPa,辅助气(GS1,N2)为 50 kPa,接口持续加热,全程通入氮气,气帘气(CRU,N2)为35 kPa,碰撞气(CAD)压力为Medium,每个离子对的滞留时间(dwell time)为150 ms。每个待测化合物的监测离子对、解簇电压(DP)及碰撞能量(CE)见表1。TOB和DXM的二级质谱图见图1
本试验方法学验证遵循《中国药典》2020年版四部通则《9012生物样品定量分析方法验证指导原则》和《M10生物分析方法验证及样品分析》等相关指导原则的要求[7-8]
取空白基质、含5 000 ng·mL-1TOB空白基质、含5 000 ng·mL-1DXM空白基质,以及含5 000 ng·mL-1TOB/DXM对照品溶液按“2.2”项下方法检测。由图2可知,TOB的保留时间为0.73 min,DXM的保留时间为3.16 min。结果表明,空白基质对TOB、DXM及TOB和DXM相互间均无干扰,本法专属性良好。
取“2.1.2”项下系列对照品溶液,按供试样品处理。采用 Analyst 1.7.3 软件进行数据采集和处理,分别以TOB和DXM的质量浓度(ρ)为横坐标,以色谱响应值(A)为纵坐标,用加权最小二乘法进行回归运算,所得的直线回归方程即为标准曲线。TOB典型的线性回归方程为A=1 710ρ-70 200,r=0.998 6;DXM典型的线性回归方程为A=4 510ρ+111 000,r=0.999 8,待测物均在200~5 000 ng·mL-1内线性良好,定量下限均为200 ng·mL-1,信噪比均大于10,本研究同时考察了最高浓度对照品溶液后空白基质中两待测物的残留,其残留峰面积均低于定量下限中分析物峰面积的20.0%。
按“2.1.2”项下制备混合定量下限质控(LLOQ) QC(200 ng·mL-1)、低浓度质控(LQC)(600 ng·mL-1)、中浓度质控(MQC)(1 500 ng·mL-1)和HQC(3 750 ng·mL-1)共4个浓度质控样品,每个浓度各6份,连续测定3 d。将回算浓度与标准添加浓度进行比较,得到批内和批间的变异系数(coefficient of variation,CV),以及相对误差(relative error,RE),计算准确度,见表2。结果显示,TOB批内和批间的准确度偏差分别为-2.7%~4.6%和0.1%~2.7%,DXM批内和批间的准确度偏差分别为-6.8%~4.6%和-1.3%~3.5%,TOB和DXM的批内和批间精密度CV均在15.0%范围内,本法准确度与精密度良好。
按“2.1.2”项下制备混合LQC(600 ng·mL-1)、HQC(3 750 ng·mL-1)两个质量浓度的质控样品, 每个质量浓度各6份,考察处理过的样品在自动进样器温度(15 ℃)下放置稳定性。结果所示,表明TOB和DXM在自动进样器温度(15 ℃)下48 h稳定(表3)。
取参比制剂和自研制剂,按“2.1.3”项下制备供试品溶液,经样品处理,采用经验证的LC-MS/MS方法检测,通过测定的释放浓度计算参比制剂和自研制剂的累计释放量、单位面积释放量,以单位面积释放量(y)与释放时间平方根(x)做线性回归,参比制剂释放速率方程为 y=176.35x-93.532(r2=0.993 3);自研制剂释放速率方程为y=112.43x-13.595 (r2=0.997 3),结果见表4图3
结果表明,取样点单位面积释放量与时间的平方根呈线性关系,r2均大于0.99,6个样品释放速率的RSD值均小于10%,体外释放方法可行。自研制剂的体外释放速率与参比制剂的体外释放速率比值的90%置信区间为66.5%,超出80.00%~125.00%的范围(参考FDA[2]妥布霉素地塞米松滴眼液指导原则中体内等效性试验的评价标准),参比制剂与自研制剂存在显著差异。
本研究建立了一种同时测定人工泪液中妥布霉素和地塞米松浓度的LC-MS/MS方法。在方法开发优化过程中比较了C18、C18-AQ、氨基柱、C8等多种色谱柱,发现仅在C8色谱柱中妥布霉素和地塞米松均有保留,出峰时间处无干扰。在筛选流动相组成和比例时,尝试了多种流动相组成和比例,包括水(0.1%甲酸)-乙腈、水(0.1%甲酸,20 mmol·L-1乙酸铵)-乙腈(0.1%甲酸),以及水(0.4%甲酸)-80%乙腈,发现妥布霉素不呈线性关系,地塞米松线性关系差。当更换流动相为2 mmol·L-1乙酸铵,用甲酸调节pH至3.2,流动相为90%甲醇水溶液时,妥布霉素线性关系良好,得到较为合适的保留时间,避免妥布霉素、地塞米松与杂质共同洗脱,减少了基质对妥布霉素和地塞米松响应的干扰[9-13]
本研究建立的定量检测人工泪液中妥布霉素和地塞米松的方法,经过全面的方法学验证,证明该方法具有良好的精密度、准确度、选择性、耐用性和稳定性,可满足妥布霉素地塞米松滴眼液在体外释放试验中定量检测的要求,为体外评价和临床药物检测提供可靠分析手段。
  • 浙江省药品监管系统科技计划项目资助(2024016)
  • 浙江省药品监管系统科技计划项目资助(2022001)
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2025年第60卷第6期
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doi: 10.11669/cpj.2025.06.011
  • 接收时间:2024-10-09
  • 首发时间:2025-11-07
  • 出版时间:2025-03-22
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  • 收稿日期:2024-10-09
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浙江省药品监管系统科技计划项目资助(2024016)
浙江省药品监管系统科技计划项目资助(2022001)
作者信息
    1 浙江省食品药品检验研究院, 杭州 310014
    2 国家药品监督管理局仿制药评价关键技术重点实验室, 杭州 310014

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*刘柱,男,硕士,高级工程师 研究方向:质量分析技术 Tel:(0571)86468480
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
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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