UPLC—MS/MS法同時測定通關(guān)藤藥材中3種皂苷的含量

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          中圖分類號 R28 文獻標(biāo)志碼 A 文章編號 1001-0408(2018)08-1048-04
          DOI 10.6039/j.issn.1001-0408.2018.08.09
          摘 要 目的:建立同時測定通關(guān)藤藥材中通關(guān)藤苷A、H、I含量的方法。方法:采用超高效液相色譜-串聯(lián)質(zhì)譜法,色譜柱為Phenomenex Kinetex XB-C18,流動相為0.1%甲酸溶液-乙腈(梯度洗脫), 流速為 0.2 mL/min,柱溫為40 ℃,進樣量為5 μL,離子源為電噴霧離子源,多反應(yīng)離子監(jiān)測模式,正離子掃描,離子源噴射電壓為5 500 V,霧化氣壓力為60 psi,加熱氣壓力為60 psi,簾氣壓力為20 psi,去溶劑溫度為600 ℃。結(jié)果:通關(guān)藤苷A、H、I檢測質(zhì)量濃度線性范圍分別為0.1~10 ng/mL(r=0.999 7)、0.025~10 ng/mL(r=0.999 5)、0.025~10 ng/mL(r=0.998 9);定量限分別為0.1、0.025、0.025 ng/mL,檢測險分別為0.05、0.012 5、0.012 5 ng/mL;精密度、穩(wěn)定性、重復(fù)性試驗的RSD均小于4.0%;加樣回收率分別為97.67%~99.00%(RSD=0.47%,n=6)、95.00%~101.67%(RSD=2.59%,n=6)、96.67%~103.33%(RSD=2.83%,n=6)。結(jié)論:該方法操作簡便,精密度、穩(wěn)定性、重復(fù)性好,可用于通關(guān)藤藥材中通關(guān)藤苷A、H、I含量的同時測定。
          關(guān)鍵詞 通關(guān)藤;通關(guān)藤苷A;通關(guān)藤苷H;通關(guān)藤苷I;超高效液相色譜-串聯(lián)質(zhì)譜法
          ABSTRACT OBJECTIVE: To establish the method for simultaneous determination of tenacissoside A, tenacissoside H and tenacissoside I in Marsdenia tenacissima. METHODS: UPLC-MS/MS method was adopted. The determination was performed on a Phenomenex Kinetex XB-C18 column with mobile phase consisted of 0.1% formic acid solution-acetonitrile (gradient elution) at the flow rate of 0.2 mL/min. The column temperature was set at 40 ℃, and sample size was 5 μL. Multiple reaction monitoring (MRM) mode was adopted with electrospray ion source as ion source, using positive ion scanning. Source jet voltage was 5 500 V, nebulizer pressure was 60 psi, heating pressure was 60 psi, curtain pressure was 20 psi and cone temp was set at 600 ℃. RESULTS: The linear ranges of tenacissoside A, tenacissoside H and tenacissoside I were 0.1-10 ng/mL (r=0.999 7), 0.025-10 ng/mL(r=0.999 5), 0.025-10 ng/mL(r=0.998 9), respectively; limited of quantation were 0.1,0.025,0.025 ng/mL,limited of detection were 0.05,0.012 5,0.012 5 ng/mL, respectively; RSDs of precision, stability and reproducibility tests were<4.0%. The recoveries were 97.67%-99.00%(RSD=0.47%,n=6), 95.00%-101.67%(RSD=2.59%,n=6), 96.67%-103.33%(RSD=2.83%,n=6). CONCLUSIONS: The method is simple, precise, stable and reproducible, and can be used for simultaneous determination of tenacissoside A, tenacissoside H and tenacissoside I in M. tenacissima.
          KEYWORDS Marsdenia tenacissima; Tenacissoside A; Tenacissoside H; Tenacissoside I; UPLC-MS/MS
          通關(guān)藤[Marsdenia tenacissima(Roxb.) Wight et Arn.]又名烏骨藤、通光藤、通關(guān)散、奶漿藤等,收載于2015年版《中國藥典》(一部),分布于我國云南、貴州等地,入藥部位為其干燥藤莖,有止咳平喘、祛痰、通乳、清熱解毒等功效[1-3],F(xiàn)有文獻報道多集中于通關(guān)藤藥材中酚酸類物質(zhì)[4-7],近期研究顯示通關(guān)藤藥材主要活性成分為甾體皂苷類化合物[3]。2015年版《中國藥典》(一部)中通關(guān)藤藥材的含量測定項是以通關(guān)藤苷H為指標(biāo)成分,采用高效液相色譜法(HPLC)進行檢測的。隨著對該藥材研究的不斷深入,鑒定分離的通關(guān)藤苷種數(shù)不斷增加[2-3],有文獻報道了采用HPLC法測定通關(guān)藤藥材及其制劑中通關(guān)藤苷的方法[8-10]。本試驗采用超高效液相色譜-串聯(lián)質(zhì)譜法(UPLC-MS/MS)建立同時測定通關(guān)藤藥材中通關(guān)藤苷A、H、I含量的方法,以期為更好地對該藥材進行質(zhì)量控制提供參考。

        相關(guān)熱詞搜索:通關(guān) 測定 藥材 含量 皂苷

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