Article(id=1308468000168890622, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1308467818098357056, articleNumber=null, orderNo=null, doi=10.16438/j.0513-4870.2025-0437, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1744819200000, receivedDateStr=2025-04-17, revisedDate=1755619200000, revisedDateStr=2025-08-20, acceptedDate=null, acceptedDateStr=null, onlineDate=1789892681400, onlineDateStr=2026-09-20, pubDate=1762876800000, pubDateStr=2025-11-12, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1789892681400, onlineIssueDateStr=2026-09-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1789892681400, creator=13701087609, updateTime=1789892681400, updator=13701087609, issue=Issue{id=1308467818098357056, tenantId=1146029695717560320, journalId=1189982191388893191, year='2025', volume='60', issue='11', pageStart='3263', pageEnd='3544', issueExtLink='null', onlineDate='null', pubDate='1762876800000', pubDateStr='2025-11-12', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1789892637990, creator='13701087609', updateTime=1789893243047, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1308470355954262098, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1308467818098357056, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1308470355954262099, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1308467818098357056, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=3483, endPage=3490, ext={EN=ArticleExt(id=1308468000361828608, articleId=1308468000168890622, tenantId=1146029695717560320, journalId=1189982191388893191, language=EN, title=Qualitative and quantitative assessment of related substances in baicalin eye drops, columnId=1190335348761793317, journalTitle=Acta Pharmaceutica Sinica, columnName=Original Articles, runingTitle=null, highlight=null, articleAbstract=
Baicalin eye drops have broad clinical application prospects in the treatment of ocular diseases. However, there is still a lack of qualitative and quantitative research on the related substances in them. This study first established an analytical method for related substances in baicalin eye drops, providing a scientific basis for product development and quality control. Through LC-Q/TOF-MS/MS, seven related substances were preliminarily identified in baicalin eye drops, namely scutellarin, oroxylin A-7-O-glucuronide, oroxin A, quercetin-7-O-glucuronide/quercetin 3-O-glucuronide, chrysin-7-O-glucuronide, baicalein, and scutellarein. The quantitative analysis of oroxin A, scutellarin and oroxylin A-7-O-glucuronide was carried out by HPLC. The chromatographic column was the NanoChrom AR C18 column (250 mm × 4.6 mm, 5 μm). The mobile phase was 0.1% phosphoric acid aqueous solution (A)-acetonitrile (B), with gradient elution. The column temperature was 20 ℃, the flow rate was 0.8 mL·min-1, and the detection wavelength was 254 nm. The established method has strong specificity, high sensitivity, and good precision. In this study, a method for the qualitative and quantitative analysis of related substances in baicalin eye drops was established, providing a basis for ensuring their quality.
, authors=Hong-fang ZHAO
1, Yue CHEN
1, Tao WU
2, Ke-xin PAN
2, Jun LU
2, Qing LI
1, *, authorsList=Hong-fang ZHAO, Yue CHEN, Tao WU, Ke-xin PAN, Jun LU, Qing LI, authorCompany=null, correspAuthors=Qing LI, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright ©2025 Acta Pharmaceutica Sinica. All rights reserved., 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=1308468003264286985, articleId=1308468000168890622, tenantId=1146029695717560320, journalId=1189982191388893191, language=CN, title=黄芩苷滴眼液中有关物质的定性与定量分析, columnId=1190335348896011050, journalTitle=药学学报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=
黄芩苷滴眼液在眼部疾病治疗中具有广阔的临床应用前景, 但尚缺乏对其有关物质的定性与定量研究。本文首次建立了黄芩苷滴眼液中有关物质的分析方法, 为产品开发与质量控制提供了科学依据。通过LC-Q/TOF-MS/MS初步鉴定出黄芩苷滴眼液中含有7种有关物质, 分别为野黄芩苷、千层纸素A-7-O-β-D-葡萄糖醛酸苷、木蝴蝶苷A、槲皮素7-O-β-D-葡萄糖醛酸苷/槲皮素3-O-β-D-葡萄糖醛酸苷、白杨素-7-O-葡萄糖醛酸苷、黄芩素及野黄芩素。采用HPLC法对木蝴蝶苷A、野黄芩苷和千层纸素A-7-O-β-葡萄糖醛酸苷进行定量分析, 色谱柱为纳谱AR C18柱(250 mm × 4.6 mm, 5 μm), 流动相为0.1%磷酸水溶液(A)-乙腈(B), 梯度洗脱, 柱温20 ℃, 流速0.8 mL·min-1, 检测波长254 nm。建立的方法专属性强、灵敏度高且精密度良好。本研究建立了黄芩苷滴眼液中有关物质的定性与定量分析方法, 为保障其质量提供了依据。
, authors=赵红芳
1, 陈悦
1, 吴涛
2, 潘可欣
2, 卢骏
2, 李清
1, *, authorsList=赵红芳, 陈悦, 吴涛, 潘可欣, 卢骏, 李清, authorCompany=null, correspAuthors=李清, authorNote=
作者贡献:
赵红芳主要进行了本文的实验设计、色谱分析方法的建立、实验数据的处理、撰写文章等; 陈悦主要参与了色谱方法的建立、实验数据的处理等; 吴涛对本文的选题与设计、实验思路及方法建立提供了专业的指导; 潘可欣对实验数据的处理提供了帮助; 卢骏对实验思路及文章修改提供了宝贵的修改建议; 李清对本文的选题与设计、实验思路、色谱方法建立及文章修改提供了专业指导。
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Chemical structures of baicalin and baicalin impurities, figureFileSmall=sMXMnnlRNnwF8T7pG3BuhA==, figureFileBig=I14wD/FuWGVMVB87zpyqjQ==, tableContent=null), ArticleFig(id=1308498714533135006, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308468000168890622, language=EN, label=null, caption=null, figureFileSmall=ZJaVBdxYtS7cKHy+A8zfZg==, figureFileBig=YwJGtvkiWuSLML3QumsQrA==, tableContent=null), ArticleFig(id=1308498714600243871, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308468000168890622, language=CN, label=Fig.2, caption=
Proposed fragmentation pathways of baicalin and baicalin impurities. A: Baicalin; B: Quercetin-7-O-glucuronide/Quercetin-3-O-glucuronide; C: Scutellarin; D: Oroxin A; E: Scutellarein; F: Baicalein; G: Oroxylin A-7-O-glucuronide; H: Chrysin-7-O-glucuronide, figureFileSmall=ZJaVBdxYtS7cKHy+A8zfZg==, figureFileBig=YwJGtvkiWuSLML3QumsQrA==, tableContent=null), ArticleFig(id=1308498714675741344, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308468000168890622, language=EN, label=null, caption=null, figureFileSmall=Dw0XnMl11O1mQ05YiLcjqQ==, figureFileBig=Olkj+2LiqxX5dHPm+sQppw==, tableContent=null), ArticleFig(id=1308498714734461601, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308468000168890622, language=CN, label=Fig.3, caption=
Product ion MS/MS spectrum of baicalin and baicalin impurities. A: Baicalin; B: Quercetin-7-O-glucuronide/quercetin-3-O-glucuronide; C: Scutellarin; D: Oroxin A; E: Scutellarein; F: Baicalein; G: Oroxylin A-7-O-glucuronide; H: Chrysin-7-O-glucuronide, figureFileSmall=Dw0XnMl11O1mQ05YiLcjqQ==, figureFileBig=Olkj+2LiqxX5dHPm+sQppw==, tableContent=null), ArticleFig(id=1308498716399600290, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308468000168890622, language=EN, label=null, caption=null, figureFileSmall=V/E2f3ZN9T3mpdQ1QOIUDQ==, figureFileBig=+s22a6h84PEIgUiK0rbzqQ==, tableContent=null), ArticleFig(id=1308498716483486371, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308468000168890622, language=CN, label=Fig.4, caption=
Chromatogram of specificity. A: Scutellarin, baicalin and oroxylin A-7-O-glucuronide mixed reference substance; B: Oroxin A reference substance; C: Sample solution. 1: Scutellarin; 2: Oroxin A; 3: Baicalin; 4: Oroxylin A-7-O-glucuronide, figureFileSmall=V/E2f3ZN9T3mpdQ1QOIUDQ==, figureFileBig=+s22a6h84PEIgUiK0rbzqQ==, tableContent=null), ArticleFig(id=1308498716567372452, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308468000168890622, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| No. | Identification | Formula | Adduct mode | Theoretical mass (m/z) | Measured mass (m/z) | Error /ppm | tR/min | Main fragment ion |
| 1 | Baicalin* | C21H18O11 | [M+H]+ | 447.092 2 | 447.088 3 | -1.5 | 31.27 | 271.057 8 |
| 2 | Quercetin-7-O-glucuronide/Quercetin-3-O-glucuronide | C21H18O13 | [M+H]+ | 479.082 0 | 479.081 9 | -0.2 | 6.77 | 303.049 2 |
| 3 | Scutellarin* | C21H18O12 | [M+H]+ | 463.087 1 | 463.086 6 | -1. | 15.46 | 287.053 9, 269.043 6, 241.048 2 |
| 4 | Oroxin A* | C21H20O10 | [M+H]+ | 433.112 9 | 433.112 5 | -0.9 | 30.42 | 271.059 4 |
| 5 | Scutellarein | C15H10O6 | [M+H]+ | 287.055 0 | 287.053 3 | 0.2 | 31.34 | 269.043 4, 241.048 6 |
| 6 | Baicalein* | C15H10O5 | [M+H]+ | 271.060 1 | 271.060 0 | 0.9 | 44.1 | 253.048 4 |
| 7 | Oroxylin A-7-O-glucuronide* | C22H20O11 | [M+H]+ | 461.107 8 | 461.106 5 | -1. | 55.58 | 285.074 9 |
| 8 | Chrysin-7-O-glucuronide | C21H18O10 | [M+H]+ | 431.097 3 | 431.099 7 | -0.4 | 55.78 | 255.065 2, 226.949 7 |
), ArticleFig(id=1308498716638675621, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308468000168890622, language=CN, label=Tab.1, caption=
Identification of chemical constituents of preparations by HPLC-TOF-MS. *Identified with reference standard
, figureFileSmall=null, figureFileBig=null, tableContent=
| No. | Identification | Formula | Adduct mode | Theoretical mass (m/z) | Measured mass (m/z) | Error /ppm | tR/min | Main fragment ion |
| 1 | Baicalin* | C21H18O11 | [M+H]+ | 447.092 2 | 447.088 3 | -1.5 | 31.27 | 271.057 8 |
| 2 | Quercetin-7-O-glucuronide/Quercetin-3-O-glucuronide | C21H18O13 | [M+H]+ | 479.082 0 | 479.081 9 | -0.2 | 6.77 | 303.049 2 |
| 3 | Scutellarin* | C21H18O12 | [M+H]+ | 463.087 1 | 463.086 6 | -1. | 15.46 | 287.053 9, 269.043 6, 241.048 2 |
| 4 | Oroxin A* | C21H20O10 | [M+H]+ | 433.112 9 | 433.112 5 | -0.9 | 30.42 | 271.059 4 |
| 5 | Scutellarein | C15H10O6 | [M+H]+ | 287.055 0 | 287.053 3 | 0.2 | 31.34 | 269.043 4, 241.048 6 |
| 6 | Baicalein* | C15H10O5 | [M+H]+ | 271.060 1 | 271.060 0 | 0.9 | 44.1 | 253.048 4 |
| 7 | Oroxylin A-7-O-glucuronide* | C22H20O11 | [M+H]+ | 461.107 8 | 461.106 5 | -1. | 55.58 | 285.074 9 |
| 8 | Chrysin-7-O-glucuronide | C21H18O10 | [M+H]+ | 431.097 3 | 431.099 7 | -0.4 | 55.78 | 255.065 2, 226.949 7 |
), ArticleFig(id=1308498716714173094, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308468000168890622, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| Analyte | Linear equation | R2 | Linear range /μg·mL-1 |
| Baicalin | y = 0.535 1 x - 0.019 1 | 0.999 8 | 0.091 13-11.66 |
| Scutellarin | y = 0.525 6 x - 0.021 6 | 0.999 5 | 0.043 11-11.03 |
| Oroxin A | y = 0.492 7 x - 0.060 2 | 0.999 0 | 0.092 14-11.79 |
Oroxylin A-7- O-glucuronide | y = 0.403 9 x + 0.007 4 | 1.000 0 | 0.048 31-12.37 |
), ArticleFig(id=1308498716781281959, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308468000168890622, language=CN, label=Tab.2, caption=
Results of linearity
, figureFileSmall=null, figureFileBig=null, tableContent=
| Analyte | Linear equation | R2 | Linear range /μg·mL-1 |
| Baicalin | y = 0.535 1 x - 0.019 1 | 0.999 8 | 0.091 13-11.66 |
| Scutellarin | y = 0.525 6 x - 0.021 6 | 0.999 5 | 0.043 11-11.03 |
| Oroxin A | y = 0.492 7 x - 0.060 2 | 0.999 0 | 0.092 14-11.79 |
Oroxylin A-7- O-glucuronide | y = 0.403 9 x + 0.007 4 | 1.000 0 | 0.048 31-12.37 |
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| Batch No. | Scutellarin /% | Oroxylin A/% | Other maximum single impurity/% | Total impurity/% |
| 230703 | 0.19 | 0.38 | 0.06 | 0.69 |
| 230704 | 0.25 | 0.38 | 0.07 | 0.76 |
| 230705 | 0.25 | 0.38 | 0.06 | 0.75 |
), ArticleFig(id=1308498716919693993, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308468000168890622, language=CN, label=Tab.3, caption=
Content of samples of different batches (n = 3)
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| Batch No. | Scutellarin /% | Oroxylin A/% | Other maximum single impurity/% | Total impurity/% |
| 230703 | 0.19 | 0.38 | 0.06 | 0.69 |
| 230704 | 0.25 | 0.38 | 0.07 | 0.76 |
| 230705 | 0.25 | 0.38 | 0.06 | 0.75 |
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