Article(id=1239250708294324363, tenantId=1146029695717560320, journalId=1205117023404326918, issueId=1239250701583446236, articleNumber=null, orderNo=null, doi=10.16155/j.0254-1793.2024.04.17, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=null, receivedDateStr=null, revisedDate=1711641600000, revisedDateStr=2024-03-29, acceptedDate=null, acceptedDateStr=null, onlineDate=1773389993022, onlineDateStr=2026-03-13, pubDate=1714406400000, pubDateStr=2024-04-30, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773389993022, onlineIssueDateStr=2026-03-13, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773389993022, creator=13701087609, updateTime=1773389993022, updator=13701087609, issue=Issue{id=1239250701583446236, tenantId=1146029695717560320, journalId=1205117023404326918, year='2024', volume='44', issue='4', pageStart='553', pageEnd='736', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1773389991422, creator=13701087609, updateTime=1773390513217, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1239252890213209050, tenantId=1146029695717560320, journalId=1205117023404326918, issueId=1239250701583446236, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1239252890213209051, tenantId=1146029695717560320, journalId=1205117023404326918, issueId=1239250701583446236, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=705, endPage=713, ext={EN=ArticleExt(id=1239250710164983964, articleId=1239250708294324363, tenantId=1146029695717560320, journalId=1205117023404326918, language=EN, title=Determination of related substances and assay of levamisole hydrochloride tablets by HPLC*, columnId=1206272758774821315, journalTitle=Chinese Journal of Pharmaceutical Analysis, columnName=Standard Deliberation, runingTitle=null, highlight=null, articleAbstract=
Objective:

To develop an HPLC method for the determination of related substances and assay of levamisole hydrochloride tablets.

Methods:

The chromatographic separation of related substances was performed on a Thermo Hypsil C18 column(100 mm×4.6 mm, 3 μm). A gradient elution was applied with a mobile phase composed of 0.75% monobasic ammonium phosphate solution(adjusted at pH 6.5 with diiopropylamine) and acetonitrile. The assay analytical column was packed with IntertSustain C18 column(150 mm×4.6 mm, 5 μm). The mobile phase was 70 volumes of 0.75% monobasic ammonium phosphate solution(adjusted at pH 7.0 with diiopropylamine) with 30 volumes of acetonitrile. The wavelength detection was set at 215 nm, the injection volumn was 10 μL, and the flow rate was 1.0 mL·min-1.

Results:

Levamisole and its impurities were separated well by related substances HPLC method above. Impurities A, B, C, D, E showed the good linearities in the concentration ranges of 10.87-25.37 μg·mL-1, 11.62-27.10 μg·mL-1, 12.38-28.90 μg·mL-1, 30.89-72.07 μg·mL-1, 12.41-28.95 μg·mL-1 (r>0.999). The average correction factors of impurities A, B, C, D, E determined by three columns and liquid chromatographies were 1.6, 1.4, 2.6, 1.2, 2.4, respectively, the recovery rates(n=9) were 98.1%, 99.0%, 98.6%, 100.1%, 99.9% and the RSDs were 0.63%, 0.79%, 0.92%, 0.96%, 0.33%. The separation of levamisole and impurity C was good by assay HPLC method. Levamisole showed the good linearity in the concentration range of 0.10 14-0.304 3 mg·mL-1 (r=0.999 9). The average recovery rate(n=9) of levamisole was 100.2%, RSD=0.52%. Ten batches levamisole hydrochloride tablets from five domestic pharmaceutical enterprises were determined by the above related substances and assay HPLC method, the total impurities mass were 0.05%-0.62%, and the assays were 99.5%-104.3%.

Conclusion:

The established method is high selection and accurate. It is suitable applied for determination of related substances and assay of levamiole hydrochloride tablets.

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目的:

建立高效液相色谱法测定盐酸左旋咪唑片的有关物质及含量。

方法:

有关物质检测采用Thermo Hypsil C18(100 mm×4.6 mm,3 μm)色谱柱,以0.75%磷酸二氢铵溶液(用二异丙胺调节pH至7.0)-乙腈为流动相,梯度洗脱;含量测定采用InertSustain C18(150 mm×4.6 mm,5 μm)色谱柱,以0.75%磷酸二氢铵溶液(用二异丙胺调节pH至7.0)-乙腈(70∶30)为流动相。流速均为1.0 mL·min-1,检测波长均为215 nm,进样体积均为10 μL。

结果:

建立的有关物质检测方法能较好地分离盐酸左旋咪唑与5个已知杂质;已知杂质A、B、C、D、E质量浓度在10.87~25.37、11.62~27.10、12.38~28.90、30.89~72.07、12.41~28.95 μg·mL-1的范围内与峰面积呈良好的线性关系(r>0.999),平均校正因子分别为1.6、1.4、2.6、1.2、2.4,平均回收率(n=9)分别为98.1%、99.0%、98.6%、100.1%和99.9%,RSD分别为0.63%、0.79%、0.92%、0.96%、0.33%。建立的含量测定方法能分离盐酸左旋咪唑与相邻杂质C;盐酸左旋咪唑质量浓度在0.101 4~0.304 3 mg·mL-1的范围内与峰面积呈良好的线性关系(r=0.999 9);盐酸左旋咪唑的平均回收率(n=9)为100.2%,RSD=0.52%;盐酸左旋咪唑的定量限与检测限分别为0.076 ng和0.030 ng。采用建立的方法实际测定5家企业生产的10批样品,总杂质量为0.05%~0.62%,含量为99.5%~104.3%。

结论:

研究建立的盐酸左旋咪唑片的有关物质和含量测定的方法专属性强,结果准确度高,可用于盐酸左旋咪唑片中杂质的控制研究以及质量标准的提高。

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** Tel:13377882239;E-mail:
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1.左旋咪唑(levamisole) 2.杂质A(impurity A) 3.杂质C(impurity C) 4.杂质D(impurity D) 5.杂质B(impurity B) 6.杂质E(impurity E)

, figureFileSmall=04+uy3DFww8Hgr2ERb+cbA==, figureFileBig=SzTA3jeBPR5qbJ1PAS2Dgg==, tableContent=null), ArticleFig(id=1239250716695515700, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1239250708294324363, language=EN, label=Fig.3, caption=The chromatograms of forced degradation testing, figureFileSmall=HCf9QsD4XqmkNCCRxG6s1A==, figureFileBig=BO0A27s4UTBXBFf1BB/3AQ==, tableContent=null), ArticleFig(id=1239250716804567611, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1239250708294324363, language=CN, label=图3, caption=强制降解试验色谱图

1.左旋咪唑(levamisole) 2.杂质A(impurity A) 3.杂质C(impurity C) 4.杂质D(impurity D) 5.杂质B(impurity B) 6.杂质E(impurity E)

, figureFileSmall=HCf9QsD4XqmkNCCRxG6s1A==, figureFileBig=BO0A27s4UTBXBFf1BB/3AQ==, tableContent=null), ArticleFig(id=1239250716917813827, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1239250708294324363, language=EN, label=Tab.1, caption=

Gradient elution of related substances

, figureFileSmall=null, figureFileBig=null, tableContent=
时间
(time)/min
流动相比例(ratio of mobile phase)/%
流动相(mobile phase) A流动相(mobile phase) B
0~1080→2020→80
10~142080
14~1520→8080→20
15~208020
), ArticleFig(id=1239250718410986058, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1239250708294324363, language=CN, label=表1, caption=

有关物质梯度洗脱表

, figureFileSmall=null, figureFileBig=null, tableContent=
时间
(time)/min
流动相比例(ratio of mobile phase)/%
流动相(mobile phase) A流动相(mobile phase) B
0~1080→2020→80
10~142080
14~1520→8080→20
15~208020
), ArticleFig(id=1239250718507455057, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1239250708294324363, language=EN, label=Tab.2, caption=

Linear regression equations and correction factors obtained by different instruments and chromatographic columns

, figureFileSmall=null, figureFileBig=null, tableContent=
化合物
(compound)
试验条件
(condition)
线性范围
(liner range)/(μg·mL-1)
线性回归方程
(regression equation)
r校正因子(correction factors)
结果(result)平均值(average)
杂质A(impurity A)110.87~25.37Y=29 758X-7.840 60.999 51.671.6
2Y=310.52X+0.078 40.999 51.58
3Y=321.1X+0.052 20.999 91.55
杂质B(impurity B)111.62~27.10Y=31 798X+1.089 41.0001.561.4
2Y=363.41X+0.003 80.999 91.35
3Y=365.24X+0.011 20.999 91.36
杂质C(impurity C)112.38~28.90Y=18 829X+5.019 50.999 62.632.6
2Y=190.37X-0.107 50.999 92.57
3Y=188.39X-0.394 20.999 72.64
杂质D(impurity D)130.89~72.07Y=36 992X+11.38 10.999 91.341.2
2Y=411.78X+0.281 70.999 91.19
3Y=416.83X+0.294 70.999 71.19
杂质E(impurity E)112.41~28.95Y=19 552X+37.43 50.999 52.542.4
2Y=214.09X+0.103 80.999 82.29
3Y=218.74X+0.443 50.999 32.27
左旋咪唑(levamisole)110.51~94.59Y=49 580X-7.240 81.000--
2Y=489.96X+0.139 61.000-
3Y=497.44X+0.051 81.000-
), ArticleFig(id=1239250718612312663, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1239250708294324363, language=CN, label=表2, caption=

采用不同仪器、不同色谱柱得到的线性回归方程和校正因子

, figureFileSmall=null, figureFileBig=null, tableContent=
化合物
(compound)
试验条件
(condition)
线性范围
(liner range)/(μg·mL-1)
线性回归方程
(regression equation)
r校正因子(correction factors)
结果(result)平均值(average)
杂质A(impurity A)110.87~25.37Y=29 758X-7.840 60.999 51.671.6
2Y=310.52X+0.078 40.999 51.58
3Y=321.1X+0.052 20.999 91.55
杂质B(impurity B)111.62~27.10Y=31 798X+1.089 41.0001.561.4
2Y=363.41X+0.003 80.999 91.35
3Y=365.24X+0.011 20.999 91.36
杂质C(impurity C)112.38~28.90Y=18 829X+5.019 50.999 62.632.6
2Y=190.37X-0.107 50.999 92.57
3Y=188.39X-0.394 20.999 72.64
杂质D(impurity D)130.89~72.07Y=36 992X+11.38 10.999 91.341.2
2Y=411.78X+0.281 70.999 91.19
3Y=416.83X+0.294 70.999 71.19
杂质E(impurity E)112.41~28.95Y=19 552X+37.43 50.999 52.542.4
2Y=214.09X+0.103 80.999 82.29
3Y=218.74X+0.443 50.999 32.27
左旋咪唑(levamisole)110.51~94.59Y=49 580X-7.240 81.000--
2Y=489.96X+0.139 61.000-
3Y=497.44X+0.051 81.000-
), ArticleFig(id=1239250718767501917, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1239250708294324363, language=EN, label=Tab.3, caption=

LOQ and LOD of levamisole and five impurities

, figureFileSmall=null, figureFileBig=null, tableContent=
化合物
(compound)
待测溶液浓度
(concentration of the determined solution)/(mg·mL-1)
定量限
(LOQ)/ng
检测限
(LOD)/ng
杂质A(impurity A)1.778×10-50.355 60.177 8
杂质B(impurityB)1.922×10-50.384 40.192 2
杂质C(impurity C)2.045×10-50.409 00.204 5
杂质D(impurity D)4.613×10-50.461 20.230 6
杂质E(impurity E)2.022×10-50.404 40.202 2
左旋咪唑(levamisole)1.143×10-50.457 20.114 3
), ArticleFig(id=1239250718897525345, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1239250708294324363, language=CN, label=表3, caption=

左旋咪唑和5个已知杂质的定量限与检测限

, figureFileSmall=null, figureFileBig=null, tableContent=
化合物
(compound)
待测溶液浓度
(concentration of the determined solution)/(mg·mL-1)
定量限
(LOQ)/ng
检测限
(LOD)/ng
杂质A(impurity A)1.778×10-50.355 60.177 8
杂质B(impurityB)1.922×10-50.384 40.192 2
杂质C(impurity C)2.045×10-50.409 00.204 5
杂质D(impurity D)4.613×10-50.461 20.230 6
杂质E(impurity E)2.022×10-50.404 40.202 2
左旋咪唑(levamisole)1.143×10-50.457 20.114 3
), ArticleFig(id=1239250718985605732, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1239250708294324363, language=EN, label=Tab.4, caption=

Determination of the related substance and assay of levamiole hydrochloride tablets

, figureFileSmall=null, figureFileBig=null, tableContent=
企业
(enterprise)
批号
(batch)
有关物质的量(amout of related substance)/%含量
(assay)/%
杂质A
(impurity A)
杂质B
(impurity B)
杂质C
(impurity C)
杂质D
(impurity D)
杂质E
(impurity E)
未知杂质
(unkwown impurities)
总杂质
(total impurities)
A1512010.0090.000 60.040.070.03≤0.050.16103.4
1704030.0090.000 50.020.070.02≤0.050.13102.1
1704040.0070.000 30.020.070.02≤0.050.12102.0
B201703080.0080.000 10.0090.020.009≤0.050.05103.0
C1410010.03未检出(not detected)0.010.10.01≤0.050.19100.7
1412020.040.000 20.0070.20.03≤0.050.2799.5
1702010.010.000 40.0040.10.02≤0.050.18101.1
D1402010.110.0020.090.20.22≤0.050.62104.1
E1701020.040.000 70.120.040.08≤0.050.29104.1
1702010.050.0020.090.050.17≤0.050.36104.3
), ArticleFig(id=1239250719056908905, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1239250708294324363, language=CN, label=表4, caption=

实际样品有关物质和含量测定

, figureFileSmall=null, figureFileBig=null, tableContent=
企业
(enterprise)
批号
(batch)
有关物质的量(amout of related substance)/%含量
(assay)/%
杂质A
(impurity A)
杂质B
(impurity B)
杂质C
(impurity C)
杂质D
(impurity D)
杂质E
(impurity E)
未知杂质
(unkwown impurities)
总杂质
(total impurities)
A1512010.0090.000 60.040.070.03≤0.050.16103.4
1704030.0090.000 50.020.070.02≤0.050.13102.1
1704040.0070.000 30.020.070.02≤0.050.12102.0
B201703080.0080.000 10.0090.020.009≤0.050.05103.0
C1410010.03未检出(not detected)0.010.10.01≤0.050.19100.7
1412020.040.000 20.0070.20.03≤0.050.2799.5
1702010.010.000 40.0040.10.02≤0.050.18101.1
D1402010.110.0020.090.20.22≤0.050.62104.1
E1701020.040.000 70.120.040.08≤0.050.29104.1
1702010.050.0020.090.050.17≤0.050.36104.3
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高效液相色谱法测定盐酸左旋咪唑片的有关物质及含量*
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鲍实 1, 2 , 赵亚萍 1, 2 , 曹全胜 1, 2, **
药物分析杂志 | 标准研讨 2024,44(4): 705-713
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药物分析杂志 | 标准研讨 2024, 44(4): 705-713
高效液相色谱法测定盐酸左旋咪唑片的有关物质及含量*
全屏
鲍实1, 2 , 赵亚萍1, 2, 曹全胜1, 2, **
作者信息
  • 1.湖北省药品监督检验研究院,武汉430075
  • 2.湖北省药品质量检测与控制工程技术研究中心,武汉 430075
  • Tel:(027)87705265;E-mail:

通讯作者:

** Tel:13377882239;E-mail:
Determination of related substances and assay of levamisole hydrochloride tablets by HPLC*
Shi BAO1, 2 , Ya-ping ZHAO1, 2, Quan-sheng CAO1, 2, **
Affiliations
  • 1.Hubei Institute for Drug Control, Wuhan 430075, China
  • 2.Hubei Engineering Research Center for Drug Quality Control, Wuhan 430075, China
出版时间: 2024-04-30 doi: 10.16155/j.0254-1793.2024.04.17
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目的:

建立高效液相色谱法测定盐酸左旋咪唑片的有关物质及含量。

方法:

有关物质检测采用Thermo Hypsil C18(100 mm×4.6 mm,3 μm)色谱柱,以0.75%磷酸二氢铵溶液(用二异丙胺调节pH至7.0)-乙腈为流动相,梯度洗脱;含量测定采用InertSustain C18(150 mm×4.6 mm,5 μm)色谱柱,以0.75%磷酸二氢铵溶液(用二异丙胺调节pH至7.0)-乙腈(70∶30)为流动相。流速均为1.0 mL·min-1,检测波长均为215 nm,进样体积均为10 μL。

结果:

建立的有关物质检测方法能较好地分离盐酸左旋咪唑与5个已知杂质;已知杂质A、B、C、D、E质量浓度在10.87~25.37、11.62~27.10、12.38~28.90、30.89~72.07、12.41~28.95 μg·mL-1的范围内与峰面积呈良好的线性关系(r>0.999),平均校正因子分别为1.6、1.4、2.6、1.2、2.4,平均回收率(n=9)分别为98.1%、99.0%、98.6%、100.1%和99.9%,RSD分别为0.63%、0.79%、0.92%、0.96%、0.33%。建立的含量测定方法能分离盐酸左旋咪唑与相邻杂质C;盐酸左旋咪唑质量浓度在0.101 4~0.304 3 mg·mL-1的范围内与峰面积呈良好的线性关系(r=0.999 9);盐酸左旋咪唑的平均回收率(n=9)为100.2%,RSD=0.52%;盐酸左旋咪唑的定量限与检测限分别为0.076 ng和0.030 ng。采用建立的方法实际测定5家企业生产的10批样品,总杂质量为0.05%~0.62%,含量为99.5%~104.3%。

结论:

研究建立的盐酸左旋咪唑片的有关物质和含量测定的方法专属性强,结果准确度高,可用于盐酸左旋咪唑片中杂质的控制研究以及质量标准的提高。

盐酸左旋咪唑片  /  有关物质  /  杂质  /  校正因子  /  含量测定  /  高效液相色谱
Objective:

To develop an HPLC method for the determination of related substances and assay of levamisole hydrochloride tablets.

Methods:

The chromatographic separation of related substances was performed on a Thermo Hypsil C18 column(100 mm×4.6 mm, 3 μm). A gradient elution was applied with a mobile phase composed of 0.75% monobasic ammonium phosphate solution(adjusted at pH 6.5 with diiopropylamine) and acetonitrile. The assay analytical column was packed with IntertSustain C18 column(150 mm×4.6 mm, 5 μm). The mobile phase was 70 volumes of 0.75% monobasic ammonium phosphate solution(adjusted at pH 7.0 with diiopropylamine) with 30 volumes of acetonitrile. The wavelength detection was set at 215 nm, the injection volumn was 10 μL, and the flow rate was 1.0 mL·min-1.

Results:

Levamisole and its impurities were separated well by related substances HPLC method above. Impurities A, B, C, D, E showed the good linearities in the concentration ranges of 10.87-25.37 μg·mL-1, 11.62-27.10 μg·mL-1, 12.38-28.90 μg·mL-1, 30.89-72.07 μg·mL-1, 12.41-28.95 μg·mL-1 (r>0.999). The average correction factors of impurities A, B, C, D, E determined by three columns and liquid chromatographies were 1.6, 1.4, 2.6, 1.2, 2.4, respectively, the recovery rates(n=9) were 98.1%, 99.0%, 98.6%, 100.1%, 99.9% and the RSDs were 0.63%, 0.79%, 0.92%, 0.96%, 0.33%. The separation of levamisole and impurity C was good by assay HPLC method. Levamisole showed the good linearity in the concentration range of 0.10 14-0.304 3 mg·mL-1 (r=0.999 9). The average recovery rate(n=9) of levamisole was 100.2%, RSD=0.52%. Ten batches levamisole hydrochloride tablets from five domestic pharmaceutical enterprises were determined by the above related substances and assay HPLC method, the total impurities mass were 0.05%-0.62%, and the assays were 99.5%-104.3%.

Conclusion:

The established method is high selection and accurate. It is suitable applied for determination of related substances and assay of levamiole hydrochloride tablets.

levamisole hydrochloride tablets  /  related substances  /  impurities  /  correction factor  /  assay  /  HPLC
鲍实, 赵亚萍, 曹全胜. 高效液相色谱法测定盐酸左旋咪唑片的有关物质及含量*. 药物分析杂志, 2024 , 44 (4) : 705 -713 . DOI: 10.16155/j.0254-1793.2024.04.17
Shi BAO, Ya-ping ZHAO, Quan-sheng CAO. Determination of related substances and assay of levamisole hydrochloride tablets by HPLC*[J]. Chinese Journal of Pharmaceutical Analysis, 2024 , 44 (4) : 705 -713 . DOI: 10.16155/j.0254-1793.2024.04.17
盐酸左旋咪唑(levamisole hydrochloride)是一种人工合成的咪唑类似物,为四咪唑的左旋体[1],临床作为驱肠虫药和生物反应调节剂[2],《中华人民共和国药典》收载的剂型包括片剂、肠溶片、颗粒剂和糖浆剂,近年来还有将左旋咪唑做成滴丸剂[3]的研究,但片剂仍为左旋咪唑在临床使用的主要制剂形式,并被世界卫生组织(WHO)收入基本药物标准清单中[4]。盐酸左旋咪唑原料和片剂的现行质量标准均收载于2020年版《中华人民共和国药典》二部,片剂标准中未设置有关物质检查,仅在原料标准中采用薄层色谱法对其杂质进行控制,而国外药典USP 43、BP 2020、JP 14收载的盐酸左旋咪唑片标准中也无有关物质检查项,仅EP 10.0收载的盐酸左旋咪唑原料标准中对有关物质进行控制,并列出了盐酸左旋咪唑的5个特定杂质(分子结构见图1)。另外,现行片剂标准的含量测定方法需先经过三氯甲烷提取,再采用高氯酸滴定测定其中盐酸左旋咪唑的含量,操作烦琐并对环境不友好,且易受到制剂中辅料的干扰而导致滴定终点的判断不明确,因此有必要建立灵敏度高,准确度好,操作简便的方法来测定盐酸左旋咪唑片的有关物质及含量。
查阅国内外相关文献[5-17],未见有文献系统地对盐酸左旋咪唑片中的多种已知杂质进行测定,也未见同时测定有关物质和含量的方法。本文研究内容来自国家药典委员会药品标准提高课题,具体为采用灵敏度较高的高效液相色谱法,建立相同的色谱流动相体系,有关物质采用梯度洗脱方式,含量测定采用等度洗脱方式,采用有关物质检测条件时能将EP 10.0控制的5个特定杂质完全分离,采用含量测定条件时能将盐酸左旋咪唑与相邻的杂质C分离良好。本试验建立的方法专属性强,灵敏度高,杂质控制全面,可用于盐酸左旋咪唑片质量研究和标准修订,以及其他盐酸左旋咪唑制剂相关控制项目的建立。
Agilent 1260液相色谱仪(试验使用主体仪器);Ulimate 3000液相色谱仪(校正因子测定使用仪器);Mettler Toledo XP205电子天平(精确度为十万分之一);U3900紫外分光光度计;Thermo Hypsil C18(100 mm×4.6 mm,3 μm)色谱柱、Dikma suprsil C18(100 mm×4.6 mm,3 μm)色谱柱、Waters C18(100 mm×4.6 mm,3 μm)色谱柱、InertSustain C18色谱柱(150 mm×4.6 mm,5 μm),Agilent Zorbax C18(250 mm×4.6 mm,5 μm)色谱柱。
二异丙胺(Sigma-Aldrich提供,纯度≥99.5%);磷酸二氢铵(国药集团化学试剂有限公司,分析纯);乙腈(Fisher公司,色谱纯);高效液相色谱用水为去离子水(Millipore,USA)。
对照品盐酸左旋咪唑(批号100167-201203,含量99.9%)、杂质D(批号100020-201305,含量89.6%)购自中国食品药品检定研究院;杂质A(批号2608-060A5,含量98.1%)、杂质B(批号2668-085A3,含量99.3%)、杂质C(批号2667-062A3,含量99.1%)、杂质E(批号2667-020A3,含量97.8%)购自TLC Pharmaceutical Standards Ltd.。
盐酸左旋咪唑片(A企业提供3批,批号151201、170403、170404;B企业提供1批,批号20170308;C企业提供3批,批号141001、141202、170201;D企业提供1批,批号140201;E企业提供2批,批号170102、170201),规格均为25 mg。
精密称取盐酸左旋咪唑对照品约20 mg,加80%甲醇溶液溶解并定量稀释成每1 mL中约含盐酸左旋咪唑0.2 mg的溶液,即得。
精密称取杂质A对照品9.06 mg置50 mL量瓶中,用80%甲醇溶液溶解并稀释至刻度,摇匀,即得杂质A对照品储备液;分别精密称取杂质B、杂质C、杂质D、杂质E的对照品4.84、5.16、4.71、5.17 mg,分别置4个25 mL量瓶中,用80%甲醇溶液溶解并稀释至刻度,摇匀,即得杂质B、杂质C、杂质D、杂质E的对照品储备液;精密称取盐酸左旋咪唑对照品103.7 mg置10 mL量瓶中,分别加入上述5个杂质的对照品储备液各1 mL,用80%甲醇溶液稀释至刻度,即得混合对照品溶液。
精密称取杂质C的对照品5.16 mg置25 mL量瓶中,用80%甲醇溶液溶解并稀释至刻度,摇匀,即得杂质C对照品储备液;精密称取盐酸左旋咪唑对照品10.23 mg置10 mL量瓶中,用80%甲醇溶液溶解并稀释至刻度,摇匀,即得盐酸左旋咪唑对照品储备液;精密量取上述杂质C和盐酸左旋咪唑的对照品储备液各2 mL置同一10 mL量瓶中,用80%甲醇溶液稀释至刻度,摇匀,制成每1 mL中约含杂质C 0.04 mg和盐酸左旋咪唑0.2 mg的混合溶液,即得。
精密称取本品片剂研成的细粉约150 mg,用80%甲醇溶液溶解并稀释制成每1 mL中约含盐酸左旋咪唑10 mg的溶液,作为有关物质检测用供试品溶液。精密称取本品片剂研成的细粉约50 mg,加80%甲醇溶液溶解并定量稀释成每1 mL中约含盐酸左旋咪唑0.2 mg的溶液,作为含量测定用供试品溶液。
精密量取有关物质检测用供试品溶液1 mL置200 mL量瓶中,用80%甲醇溶液稀释至刻度,摇匀,即得。
采用Thermo HypsiL C18(100 mm×4.6 mm,3 μm)色谱柱,以0.75%磷酸二氢铵溶液(用二异丙胺调节pH至7.0)(A)-乙腈(B)为流动相,按表1梯度洗脱,流速1.0 min·mL-1,检测波长215 nm,进样体积10 μL。在上述色谱条件下测定“2.1.2”项下混合对照品溶液,杂质A、左旋咪唑、杂质C、杂质D、杂质B、杂质E依次洗脱,各色谱峰之间的分离良好。见图2-Ⅰ
采用InertSustain C18(150 mm×4.6 mm,5 μm)色谱柱,以0.75%磷酸二氢铵溶液(用二异丙胺调节pH至7.0)-乙腈(70∶30)为流动相,检测波长215 nm,流速1.0 min·mL-1,进样体积10 μL。在上述色谱条件下测定“2.1.3”项下分离度考察溶液,结果见图2-Ⅱ,左旋咪唑主峰与主峰后相邻杂质C能达到良好的分离。
取盐酸左旋咪唑片剂细粉(B企业,批号20170308)10 mg置10 mL量瓶中,分别进行强酸降解(2 mol·L-1盐酸溶液1 mL,90 ℃加热破坏3 h)、强碱降解(2 mol·L-1氢氧化钠溶液2 mL,90 ℃加热破坏3 h)、光照降解(4 500 lx照度的强光下照射116 h)、高温降解(90 ℃加热破坏3 h)、氧化降解(3%过氧化氢溶液1.5 mL,放置2 min),酸碱降解进行中和,得到各降解样品。各降解样品加80%甲醇溶液溶解并稀释至刻度,摇匀,滤过,即得破坏后的专属性供试溶液。取空白溶液(80%甲醇溶液)、有关物质检测用供试品溶液和破坏后的专属性供试溶液,按“2.2.1”项下色谱条件进样分析,记录色谱图,见图3。结果显示:未破坏的样品中有已知杂质A、杂质C、杂质D、杂质E,及少量主峰前的未知杂质;盐酸左旋咪唑在多数破坏条件下易发生降解,特别是在酸、碱、加热、氧化条件下极易产生降解杂质,在光照条件下较为稳定;与已知杂质的保留时间比较,在酸破坏的条件下极易降解出已知杂质A和杂质C,在碱性条件下易降解出杂质C和杂质D,在加热条件下,杂质A、杂质C、杂质D、杂质E的量均有所增加,在氧化破坏条件下,主峰前产生较多的未知杂质,但杂质量较低;建立的液相色谱条件能较好地分离已知杂质和降解出的未知杂质。
采用不同厂家的色谱柱在不同的液相色谱仪上测定各已知杂质的线性并计算校正因子。取“2.1.2”项下各杂质储备液和“2.1.1”项下对照品溶液适量,用80%甲醇按表2中线性溶液浓度范围进行稀释,制备5个浓度点的线性溶液,分别采用试验条件1[Thermo Hypsil C18柱(100 mm×4.6 mm,3 μm),Agilent 1260液相色谱仪]、条件2[Waters C18柱(100 mm×4.6 mm,3 μm),Ultimate 3000液相色谱仪]、条件3[Dikma suprsil C18(100 mm×4.6 mm,3 μm),Ultimate 3000液相色谱仪],按“2.2.1”项下有关物质检测色谱条件进样分析,记录色谱图,以质量浓度(X,μg·mL-1)为横坐标,峰面积(Y)为纵坐标绘制曲线,以各杂质线性方程斜率与左旋咪唑线性方程斜率的比值计算相对校正因子,结果见表2,左旋咪唑与5个杂质的线性关系良好。
分别精密量取“2.1.2”项下的各杂质对照品储备液2、1、3 mL各3份,分别置25、10、25 mL预先装有处方量空白辅料的量瓶中,用80%甲醇溶液溶解并稀释至刻度,配制成80%、100%、120%(低、中、高)3个浓度水平的回收率供试溶液。按“2.2.1”项下有关物质检测色谱条件进样分析,记录色谱图,按各杂质外标法计算回收率。杂质A、杂质B、杂质C、杂质D、杂质E的平均回收率分别为98.1%、99.0%、98.6%、100.1%、99.9%,RSD分别为0.63%、0.79%、0.92%、0.96%、0.33%。
取“2.1.2”项下各杂质储备液和“2.1.1”项下对照品溶液适量,用80%甲醇逐步稀释至表3中待测溶液浓度,按“2.2.1”项下有关物质检测色谱条件进样分析,记录色谱图。以信噪比为3时的质量为检测限,信噪比为10时的质量为定量限,结果见表3
取盐酸左旋咪唑片剂细粉(B企业,批号20170308)适量,按“2.1.4”项下方法制备有关物质检测用供试品溶液,放置0、2、4、6、8 h后,按“2.2.1”项下有关物质检测色谱条件进样分析,记录色谱图,考察杂质的变化对样品的稳定性的影响。杂质A、杂质B、杂质C、杂质D、杂质E检出量的RSD分别为3.8%、5.2%、1.3%、2.7%、1.0%,考察结果显示供试品溶液在8 h内稳定。
取盐酸左旋咪唑片剂细粉(B企业,批号20170308),按“2.1.4”项下方法制备有关物质检测用供试品溶液,按“2.2.1”项下有关物质检测色谱条件进样分析,重复进样6次,记录色谱图,杂质A、杂质B、杂质C、杂质D、杂质E检出量的RSD分别为1.3%、4.8%、1.1%、5.8%、1.6%,考察结果显示方法的精密度良好。
取“2.1.2”项下的混合对照品溶液,按“2.2.1”项下有关物质检测色谱条件,分别采用Thermo Hypsil C18 (100 mm×4.6 mm,3 μm)色谱柱和Dikma suprsil C18(100 mm×4.6 mm,3 μm)色谱柱进行分析,考察方法的耐用性。结果与左旋咪唑色谱峰相邻的杂质A与杂质C的色谱峰的分离度均能达到3.0以上,杂质C、杂质D、杂质B、杂质E色谱峰之间分离度符合要求,显示本方法的耐用性较好。
精密称取盐酸左旋咪唑对照品50.76 mg,置100 mL量瓶中,用80%甲醇溶液溶解并定量稀释至刻度,摇匀,分别精密量取适量,用80%甲醇溶液稀释成质量浓度为0.101 0、0.152 1、0.202 8、0.253 5、0.304 3 mg·mL-1的溶液,按“2.2.2”项下含量测定色谱条件进样分析,记录色谱图,以质量浓度(A,mg·mL-1)为横坐标,峰面积(C)为纵坐标绘制曲线,左旋咪唑回归方程为
结果显示左旋咪唑质量浓度在0.101 4~0.304 3 mg·mL-1的范围内线性关系良好。
分别精密称取盐酸左旋咪唑对照品,置100 mL的量瓶中,加80%甲醇溶液配制成质量浓度约为0.16、0.20、0.24 mg·mL-1的溶液各3份,同时加入各企业提供处方量的空白辅料,配制成回收率供试溶液。按“2.2.2”项下色谱条件进样分析,记录色谱图,按外标法计算左旋咪唑的回收率。结果该方法的平均回收率为100.2%,RSD为0.52%。
取盐酸左旋咪唑片剂细粉(B企业,批号20170308),按“2.1.4”项下方法配制含量测定用供试品溶液,按“2.2.2”项下含量测定色谱条件进样分析,记录色谱图,连续进样6次的左旋咪唑含量分别为103.0%、102.9%、103.6%、103.2%、103.9%、104.0%,RSD为0.45%,表明方法精密度良好。
取盐酸左旋咪唑片剂细粉(B企业,批号20170308),按“2.1.4”项下方法配制含量测定用供试品溶液,放置0、1、2、3、4、6、8 h后,按“2.2.2”项下含量测定色谱条件进样分析,记录色谱图,左旋咪唑含量分别为103.0%、104.0%、103.5%、104.6%、105.2%、104.9%,RSD为0.83%,表明方法稳定性良好。
取“2.1.1”项盐酸左旋咪唑对照品溶液适量,用80%甲醇溶液稀释浓度至1.521×10-8 g·mL-1,按“2.2.2”项下色谱条件分别进样5和2 μL进行分析,测得信噪比S/N分别为11.5和3.1,定量限与检测限分别为0.076 ng和0.030 ng。
分别采用InertSustain C18(150 mm×4.6 mm,5 μm)色谱柱和Agilent Zorbax C18(250 mm×4.6 mm,5 μm)色谱柱考察耐用性。取“2.1.3”项下分离度考察溶液,按“2.2.2”项下含量测定色谱条件进样分析,结果显示左旋咪唑在上述2种色谱柱上的保留时间分别为5.615和5.296 min,杂质C的保留时间分别为7.094和7.873 min,二者在填料与长度不同的色谱柱上的保留行为存在一定差别,但是二者的分离情况均良好,分离度分别为7.5和10.0,表明方法耐用性较好。
取5家企业共10批盐酸左旋咪唑片,采用“2.1.4”项下方法分别制备有关物质检测用和含量测定用供试品溶液,按“2.2”项下相应的色谱条件分别进样测定,记录色谱图。杂质的量按含校正因子主成分自身对照法计算,低于0.05%限度的未知杂质忽略不计,按外标法计算左旋咪唑含量结果,具体结果见表4
本研究建立有关物质及含量测定的方法采用二异丙胺调节流动相pH,这种有机胺通过减弱碱性溶质(左旋咪唑为碱性物质)与硅醇基的强相互作用,可以消除峰拖尾现象,故检出的左旋咪唑主峰的对称性较好。采用三乙胺和二异丙胺调节流动相pH至7.0后,左旋咪唑和杂质A、B、C、D、E的洗脱时间基本一致,无明显差别,但是三乙胺的碱性较强使得基线的波动较大,采用二异丙胺调节后基线的波动较为平缓。
采用ADMET Predictor药物吸收/毒性性质预测软件对已知杂质A、B、C、D、E的毒性进行预测。预测结果TOX_Risk(毒性风险系数)越大表示化合物的毒性越不理想,一般≤2,说明化合物的毒性较小,根据此预测规则,杂质B的毒性风险系数为2.192,而其余杂质的毒性风险系数均≤2,尽管预测出杂质B毒性较大,应对其严格控制,但实际样品测定结果表明杂质B的量极低,说明本品片剂的安全性较好。另外,杂质D为2020年版《中华人民共和国药典》收载的盐酸左旋咪唑原料标准中采用薄层色谱法控制的特定杂质,实际样品中的检出量较其他已知杂质高,说明国内企业生产中易产生该杂质,但杂质D的毒性预测结果显示,杂质D毒性较小,因此可延续2020年版《中华人民共和国药典》中0.5%的限度规定。
采用不同的液相色谱仪测定杂质A、杂质B、杂质C、杂质D、杂质E的校正因子基本相同,因此可取不同液相色谱仪测定出的杂质校正因子的平均值作为上述已知杂质的校正因子,在标准制修订时可采用加校正因子的主成分外标法计算各已知杂质,保证结果的准确。
采用Thermo Hypsil C18(100 mm×4.6 mm,3 μm)色谱柱以含量测定的等度洗脱色谱条件检测,也能将左旋咪唑与5个已知杂质良好分离,但左旋咪唑主峰的保留时间极短(2.294 min),不适合含量测定,另外在此条件下,杂质E的保留时间较长(约在左旋咪唑峰的7倍时间出峰),且色谱峰裂峰,响应低,说明杂质E与主成分的极性差别较大,无法采用含量测定的等度洗脱条件进行有关物质检测,尽管含量测定的灵敏度优于有关物质,但是有关物质的检测限达到10-10数量级,已能够充分满足杂质检出的灵敏度要求。最后改用常规的InertSustain C18(150 mm×4.6 mm,5 μm)色谱柱进行含量测定,结果显示主峰的保留时间约为5 min,且与相邻杂质C的分离良好,适合含量测定。含量测定确定的供试品溶液质量浓度为0.2 mg·mL-1,仅为有关物质检测确定的供试品溶液质量浓度10 mg·mL-1的1/50,因此其中的杂质量较低,对含量测定的结果影响较小,故含量测定时可不考虑其他已知杂质的检出情况。
  • *2016年国家药典委员会药品标准提高课题(品种编号:化175)
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2024年第44卷第4期
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doi: 10.16155/j.0254-1793.2024.04.17
  • 首发时间:2026-03-13
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*2016年国家药典委员会药品标准提高课题(品种编号:化175)
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    1.湖北省药品监督检验研究院,武汉430075
    2.湖北省药品质量检测与控制工程技术研究中心,武汉 430075

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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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