成分分析

不同校正和定位方法在常春藤一测多评中的应用*

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  • 1.西南医科大学 公共实验技术中心,泸州 646699;
    2.西南医科大学 附属医院,泸州 646099;
    3.西南医科大学 药学院,泸州 646699;
    4.西南医科大学 附属中医医院,泸州 646699
第一作者 Tel:18982785351;E-mail:lyhb2008@126.com
**Tel:13982770721;E-mail:lyysy2010@126.com

收稿日期: 2023-06-24

  网络出版日期: 2024-06-24

基金资助

*四川省教育厅重点项目(No.15ZA0165);泸州市科技局-泸州医学院联合基金(No.2013LZLY-K61)

Application of different calibration and localization methods in QAMS of Hedera helix*

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  • 1. Public Center of Experimental Technology, Southwest Medical University, Luzhou 646699, China;
    2. Affiliated Hospital of Southwest Medical University, Luzhou 646099, China;
    3. School of Pharmacy, Southwest Medical University, Luzhou 646699, China;
    4. Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou 646699, China

Received date: 2023-06-24

  Online published: 2024-06-24

摘要

目的: 建立一测多评(QAMS)的方法同时测定常春藤中8个活性成分(新绿原酸、绿原酸、隐绿原酸、芦丁、烟花苷、常春藤皂苷C、常春藤皂苷B、α-常春藤皂苷)的含量。方法: 采用高效液相色谱,Lubex Kromasil C18 (250 mm×4.6 mm,5 μm)色谱柱,以乙腈-0.1%磷酸水溶液为流动相,梯度洗脱,检测波长326 nm(0~15 min,检测酚酸类)、266 nm(15~25 min,检测黄酮类)、210 nm(25~45 min,检测皂苷类),流速1.0 mL·min-1,柱温30 ℃,进样量10 μL。以绿原酸为内参物,分别采用不同校正方式(斜率校正、多点校正和单点校正)计算其他成分相对于绿原酸的相对校正因子(RCF)。同时考察不同色谱系统、色谱柱、流动相梯度比例、水相磷酸比例、测定波长、流速、柱温对相对校正因子的影响。考察不同定位方式[相对保留时间(RRT)、两点校正(TPC)]对待测成分色谱峰定位的影响。以相对误差考察一测多评法与外标法(ESM)和标准曲线法(SCM)结果之间的差异,并评估一测多评的准确性和可行性。结果: 采用斜率校正,新绿原酸、隐绿原酸、芦丁、烟花苷、常春藤皂苷C、常春藤皂苷B、α-常春藤皂苷相对于绿原酸的RCF分别为0.980、1.019、0.653、0.708、0.062、0.064、0.117;采用多点校正,上述成分的RCF分别为0.975、1.006、0.645、0.711、0.060、0.061、0.114;采用单点校正,上述成分的RCF分别为0.952、0.992、0.631、0.704、0.061、0.063、0.112。不同试验条件下RCF重复性良好(RSD<3%)。相对保留时间和两点校正单一应用均无法实现色谱峰的准确定位,但二者结合可实现色谱峰的精准定位(RE<3%)。一测多评法(单点校正)测得10批常春藤中8个成分含量分别为新绿原酸0.101~0.495 mg·g-1、绿原酸1.134~4.855 mg·g-1、隐绿原酸0.064~0.348 mg·g-1、芦丁1.054~4.558 mg·g-1、烟花苷0.452~1.331 mg·g-1、常春藤皂苷C 11.121~72.350 mg·g-1、常春藤皂苷B 4.944~14.100 mg·g-1、α-常春藤皂苷5.325~19.734 mg·g-1,与外标法测定结果完全一致(RE=0%)。采用斜率校正和多点校正的测定结果与外标法和标准曲线法接近(RE<5%)。结论: 所建一测多评法简便快捷、准确可靠,可用于常春藤中新绿原酸、绿原酸、隐绿原酸、芦丁、烟花苷、常春藤皂苷C、常春藤皂苷B、α-常春藤皂苷8个活性成分的同时测定。

本文引用格式

何兵, 梁思成, 田吉, 杨世艳 . 不同校正和定位方法在常春藤一测多评中的应用*[J]. 药物分析杂志, 2023 , 43(7) : 1135 -1147 . DOI: 10.16155/j.0254-1793.2023.07.06

Abstract

Objective: To establish a quantitative analysis of multi-components by single marker(QAMS) method for simultaneous determination of 8 active components(neochlorogenic acid, chlorogenic acid, cryptochlorogenic acid, rutin, nicotiflorin, hederacoside C, hederacoside B and α-hederin) in Hedera helix. Methods: HPLC was performed on a Lubex Kromasil C18(250 mm×4.6 mm, 5 μm) column with mobile phase consisting of acetonitrile-0.1% phosphoric acid solution (gradient elution). The detection wavelength was set at 326 nm(0-15 min for phenolic acids), 266 nm(15-25 min for flavones) and 210 nm (25-45 min for saponins). The flow rate was 1.0 mL·min-1, the column temperature was 30 ℃ and the injection volume was 10 μL. Using chlorogenic acid as the internal reference, the relative correction factors(RCFs) of neochlorogenic acid, cryptochlorogenic acid, rutin, nicotiflorin, hederacoside C, hederacoside B and α-hederin were established by slope correction, multi-point correction and single-point correction. Effects of different chromatogram system, chromatogram column, mobile phase gradient proportion, determination wavelength, flow rate and column temperature on the RCFs were investigated. The effects of relative retention time(RRT) and two-point correction(TPC) on peak location were investigated. The difference between the results of QAMS, external standard method(ESM) and standard curve method(SCM) was investigated by relative error(RE), and the accuracy and feasibility of QAMS were evaluated. Results: RCFs of neochlorogenic acid, cryptochlorogenic acid, rutin, nicotiflorin, hederacoside C, hederacoside B and α-hederin relative to chlorogenic acid were 0.980, 1.019, 0.653, 0.708, 0.062, 0.064, 0.117(slope correction); 0.975, 1.006, 0.645, 0.711, 0.060, 0.061, 0.114 (multi-point correction); 0.952, 0.992, 0.631, 0.704, 0.061, 0.063, 0.112(single-point correction). RCFs reproducibility was perfect under different experiment conditions(RSD<3%). Relative retention time and two-point correction can not be used to locate the chromatographic peak accurately, but the combination of the two methods can achieve the accurate location of chromatographic peak, relative error(RE) less than 3%. The contents of 8 components in 10 batches of Hedera helix were 0.101-0.495 mg·g-1 for neochlorogenic acid, 1.134-4.855 mg·g-1 for chlorogenic acid, 0.064-0.348 mg·g-1 for cryptochlorogenic acid, 1.054-4.558 mg·g-1 for rutin, 0.452-1.331 mg·g-1 for nicotiflorin, 11.121-72.350 mg·g-1 for hederacoside C, 4.944-14.100 mg·g-1 for hederacoside B, 5.325-19.734 mg·g-1 for α-hederin by QAMS(single-point correction). The result obtained by single point correction was consistent with that of external standard method(RE=0%). The results obtained by slope correction and multi-point correction were close to those obtained by external standard method and standard curve method(RE<5%). Conclusion: The QAMS method is simple, rapid, accurate and reliable, it can be used for simultaneous determination of neochlorogenic acid, chlorogenic acid, cryptochlorogenic acid, rutin, nicotiflorin, hederacoside C, hederacoside B and α-hederin in Hedera helix.

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