高效液相色谱-二极管阵列检测器法测定复方丹参片中12种成分及掺伪鉴别

采用高效液相色谱-二极管阵列检测器法测定复方丹参片中12种成分并判定是否掺有三七茎叶. 流动相为乙腈-0.1%磷酸水溶液（梯度洗脱）,通过变换波长结合紫外光谱扫描定性的方式对丹参素钠、原儿茶酸、原儿茶醛、迷迭香酸、丹酚酸B、三七皂苷R₁、人参皂苷Rg₁、人参皂苷Re、人参皂苷Rb₁、人参皂苷Rb₃、丹参酮I、丹参酮II_A进行分析. 12种成分的线性关系良好（r≥0.999 2）,精密度（RSD<2.0%）、稳定性（RSD<2.0%）、回收率（96.1%~99.8%）均符合方法学要求,可用于复方丹参片的质量控制.     

毛细管胶束电动色谱法测定复方丹参滴丸中三种水溶性成份

在胶束电动色谱模式下考察了影响原儿茶醛、丹参素和原儿茶酸分离的重要因素并优化了关键的分离条件,建立了一种简单快速的利用毛细管胶束电动色谱DAD检测器分离分析原儿茶醛、丹参素、原儿茶酸的新方法.当缓冲溶液为50 mmol/L磷酸盐缓冲液(pH 7.2)和20 mmol/L SDS,分离电压为15 kV和分离温度为25℃时,三种分析物在10 min内实现了基线分离.结果表明,所建立的分离方法的线性范围宽,检出限低,重现性好.并利用该方法测定了复方丹参滴丸中的原儿茶醛和丹参素.     

在线扫集-胶束毛细管电动色谱法分离测定急支糖浆中阿魏酸、原儿茶醛和原儿茶酸北大核心CSCD

本文采用扫集-胶束毛细管电动色谱法(Sweeping-MEKC)分离测定急支糖浆中的阿魏酸、原儿茶醛和原儿茶酸。采用未涂层熔融石英毛细管(50cm×50μm,有效柱长36cm),环境温度25℃,缓冲体系为20mmol/L NaH2PO4+80mmol/L十二烷基磺酸钠(SDS)+12.5%乙腈(V/V)(pH=2.2),紫外检测波长225nm,运行分离电压-20kV,进样时间60s,达到最佳的分离效果。在优化条件下,阿魏酸、原儿茶醛和原儿茶酸均在15min内出峰,峰面积的相对标准偏差(RSD)均小于5%,检出限分别为109.95μg/L、88.48μg/L和15.96μg/L。     

微流控芯片对丹参滴注液中丹参素和原儿茶醛的测定

建立了微流控芯片非接触电导检测法测定丹参滴注液中丹参素与原儿茶醛含量的分析方法.探讨了缓冲液种类与浓度,添加剂、分离电压等因素对分离检测的影响.优化选择20 mmol/L H3BO3-20 mmol/L Tris缓冲溶液,加入1.5 mmol/L SDS添加剂,2.5 kV分离电压,3 min内可实现丹参素和原儿茶醛的快速分离检测.在优化条件下,丹参素的线性范围为10 ～500 mg/L,r为0.986,检出限为5.0 mg/L (S/N=3),RSD为2.1%;原儿茶醛的线性范围为50 ～500 mg/L,r为0.993,检出限为10 mg/L (S/N=3),RSD为2.8%.     

RP-HPLC法测定复方丹参片中的隐丹参酮、丹参酮Ⅰ和丹参酮ⅡA

建立了反相高效液相色谱法测定复方丹参片(丹参、三七、冰片)中的隐丹参酮、丹参酮Ⅰ和丹参酮ⅡA。采用DiamonsilTMC18(250×4.6 mm,5μm)色谱柱,以V(甲醇)∶V(水)=75∶25为流动相,流速为0.8 mL/min,检测波长270nm。隐丹参酮、丹参酮Ⅰ和丹参酮ⅡA分别在1.456~10.19μg/mL、2.160~15.12μg/mL和3.152~22.06μg/mL的范围内呈良好线性关系,平均回收率分别为99.21%(RSD=0.63%)、100.3%(RSD=1.0%)、99.87%(RSD=0.63%)。可用于复方丹参片的质量控制。     

高效液相色谱法同时测定丹参提取物中4种成分的含量

建立反相高效液相色谱法同时测定丹参醇提物和超临界提取物中原儿茶醛、丹酚酸B、隐丹参酮和丹参酮ⅡA含量的方法.采用RP-HPLC梯度洗脱的方法进行测定,色谱条件为:Agilent C18柱(5 μm,4.6×250 mm);以1%醋酸乙腈-1%醋酸水为流动相进行梯度洗脱;检测波长:0～25 min (280 nm),25～60 min (270 nm);流速0.5 mL/min;柱温:35 ℃.测定了丹参醇提取及超临界提取物中以上4种成分的含量;4种成分线性关系均良好(r>0.9995),平均加样回收率均大于95.0%,RSD均小于3.0%.该方法一次进样,可以同时测定丹参中水溶性成分原儿茶醛和丹酚酸B、脂溶性成分隐丹参酮和丹参酮ⅡA的含量.     

超高效液相色谱-串联质谱双内标法同时测定复方杏香兔耳风胶囊中的10种有效成分

建立了同时测定复方杏香兔耳风胶囊中原儿茶酸、原儿茶醛、绿原酸、野黄芩苷、异绿原酸C、黄芩苷、木犀草素、芹菜素、白术内酯Ⅲ和白术内酯I等10种有效成分含量的超高效液相色谱-串联质谱（UPLC-MS/MS）双内标分析方法。以咖啡酸和淫羊藿苷为内标（IS）,在ZORBAX RRHD Eclipse Plus C₁₈色谱柱上,以甲醇和含0.3%甲酸的水为流动相进行梯度洗脱分离,流速为0.3 mL/min。在电喷雾电离（ESI）正、负离子切换模式下,采用多重反应监测模式进行检测。结果表明,原儿茶酸、原儿茶醛、绿原酸、野黄芩苷、异绿原酸C、黄芩苷、木犀草素、芹菜素、白术内酯Ⅲ、白术内酯I的线性范围分别为0.00300~24.0 mg/L、0.0170~2.00 mg/L、0.0150~30.0 mg/L、0.00400~30.0 mg/L、0.0105~24.0 mg/L、0.00300~30.0 mg/L、0.00300~5.00 mg/L、0.00600~5.00 mg/L、0.00150~4.00 mg/L、0.000600~0.900 mg/L;检出限分别为1.0、11、5.0、1.5、3.5、1.0、1.0、2.0、0.50、0.20 μg/L。10种成分的加样回收率为92.5%~106%,相对标准偏差均不大于3.2%。该方法快速简便、灵敏度高、重复性好,已成功用于实际样品的分析。     

在线扫集-胶束电动毛细管色谱法对活血通脉片中阿魏酸与原儿茶醛的分离测定

建立了在线扫集-胶束电动毛细管色谱法同时分离测定活血通脉片中阿魏酸和原儿茶醛含量的方法。讨论了pH值、十二烷基磺酸钠(SDS)浓度、电压、有机溶剂、进样时间和背景电解质组成对分离效果的影响。结果表明:采用未涂层熔融石英毛细管,以20 mmol/L磷酸二氢钠、140 mmol/LSDS为电泳缓冲液(含16%甲醇,pH2.2),在优化条件下,阿魏酸和原儿茶醛在19 min内出峰,峰面积RSD均小于5%,其线性范围分别为0.67~21.4、0.72~23 mg/L,回收率分别为94%~108%、91%~106%,检出限(S/N=3)分别达55.5、34.8μg/L。与胶束电动毛细管色谱相比,在线扫集-胶束电动毛细管色谱分离效果稳定,重现性好。该方法用于活血通脉片中阿魏酸、原儿茶醛含量的测定,结果满意。     

高效液相色谱法测定尿塞通片中5种成分

1引言 尿塞通片是由丹参、泽兰、赤芍、败酱等13味中药组成的常用中成药，主要用于前列腺增生及尿闭等症的治疗。对于尿塞通片的质量控制有用薄层层析法，分光光度法及双波长薄层扫描法等。本实验采用二极管阵列检测器与电化学检测器联用的液相色谱法（HPLC-ECD-DAD），对尿塞通片中原儿茶酸、原儿茶醛、咖啡酸、阿魏酸和丹参酮ⅡA5种有效成分进行了同时测定，是一种快速、灵敏、准确的分析方法。     

离子色谱法测定循环冷却水中的羟基-1,1-亚乙基二磷酸

建立了循环冷却水中羟基-1,1-亚乙基二磷酸(HEDP)的离子色谱检测方法。色谱柱为IonPac AS14A阴离子交换柱,流动相为80 mmol/L NaOH水溶液,流速1.0 mL/min,抑制型电导检测器检测。方法的线性范围为0.25～25 mg/L,平均回收率为102%,检出限为0.1 mg/L;对0.25 mg/L和0.5 mg/L的HEDP标准溶液分别进行13次平行测定,相对标准偏差(RSD)分别为4.7%和3.5%。该方法具有简单、快速、灵敏、抗干扰等优点,用于循环冷却水中HEDP的检测,结果令人满意。     

Simultaneous Determination of Four Phenolic Compounds and Tanshinone IIA in Guanxintong Tablets by LC Using Combined Electrochemical Detection and DAD

A rapid, sensitive and accurate method for the simultaneous separation and determination of four phenolic compounds, including protocatechuic acid, protocatechuic aldehyde, caffeic acid and ferulic acid, and tanshinone IIA in Guanxintong tablets by high performance liquid chromatography using combined electrochemical detection with diode array detection (HPLC-ECD-DAD) has been established. The detection and quantification limits of four phenolic compounds with ECD were 7–28 fold greater than those obtained with DAD. High sensitivity was achieved using DAD for the detection of tanshinone IIA, which is an electrochemically inactive compound. All calibration curves showed good linearity (r ≥ 0.9996) within the test ranges. The recoveries ranged from 96.5% to 101.7%. Combining ECD with DAD can not only exert their respective advantages, but also widen its applications to detect various analytes in low level directly. This approach can be used to control the quality of Guanxintong tablets.     

Pharmacokinetics of 13 active components in a rat model of middle cerebral artery occlusion after intravenous injection of Radix Salviae miltiorrhizae‐Lignum dalbergiae odoriferae prescription

As a representative formulation of Radix Salviae miltiorrhizae (Danshen)‐Lignum Dalbergiae odoriferae (Jiangxiang), Xiangdan injection is widely prescribed for cardio‐ and cerebrovascular diseases in practice. This necessitates a pharmacokinetic investigation of this formulation to make it safer and more broadly applicable. We developed and validated a sensitive, selective, and reliable high‐performance liquid chromatography with tandem mass spectrometry method for the simultaneous determination of 11 phenolic compounds including danshensu plus two diterpenoid quinones like cryptotanshinone and tanshinone IIA in rat. We applied this method for the pharmacokinetic studies of the 13 compounds in a rat model of middle cerebral artery occlusion after intravenous injection of Xiangdan injection or Danshen injection. In sham‐operated rats, the animals taking Xiangdan injection exhibited significant growth of the area under the curve for danshensu, protocatechuic aldehyde, and tanshinone IIA compared with the changes seen in the data of those administrated with Danshen injection. Such a pattern was also observed in middle cerebral artery occlusion rats, whereas increased the area under the curve values were observed for danshensu, protocatechuic aldehyde, caffeic acid, rosmarinic acid, and tanshinone IIA. These results demonstrated that synergistic interactions occurred between the components of Danshen and the active compounds of Jiangxiang both in sham‐operated and middle cerebral artery occlusion rats, increasing the bioavailability of Danshen. The results presented herein can be used to determine a reference dose for the clinical application of Xiangdan injection, and to elucidate the synergistic mechanism of Danshen and Jiangxiang.     

One single LC-MS/MS analysis for both phenolic components and tanshinones in Radix Salviae Miltiorrihizae and its medicinal products

A LC-MS/MS method was developed for the separation and simultaneous determination of phenolic components including danshensu, protocatechuic acid, protocatechuic aldehyde and caffeic acid as well as tanshinones including cryptotanshinone, tanshinone I and tanshinone IIA in samples of Radix Salviae Miltiorrhizae and Salviae Miltiorrhizae tablet. Triple quadrupole mass spectrometry was optimized in both positive and negative ion multiple reaction monitoring modes for the simultaneous quantitative analysis of the two different types of active components by using a time-segment program. The method gave recoveries of 85.4-106.4% with relative standard deviations of 2.4-8.0% for the spiked herb samples. The limits of detection were 0.30-0.83 μg/g for the analysis of 1.0 g Radix Salviae Miltiorrhizae or tablet samples.     

高效液相色谱-二极管阵列检测-电化学检测联用技术同时测定三精双黄连口服液中的4种化合物

建立了应用高效液相色谱-二极管阵列检测-电化学检测(HPLC-DAD-ECD)联用技术同时测定三精双黄连口服液中的绿原酸、咖啡酸、黄芩甙和木樨草素的方法。以Zorbax SB-C18柱(150 mm×4.6 mm i.d., 5.0 μm)为色谱柱,柱温为30 ℃，流动相为(A)甲醇和(B)甲醇-水-冰醋酸(体积比为50∶50∶1),其梯度洗脱程序为2%A3 min3%A12 min25%A5 min80%A。流速为0.8 mL/min。二极管阵列检测波长为275 nm。电化学单安培检测器的工作电压为0.7 V。在上述条件下实现了绿原酸、咖啡酸、黄芩甙和木樨草素的分离检测。上述4种化合物的回收率为96.6%～99.6%,相对标准偏差(RSD)为2.5%～4.1%,检测限依次为1,0.2,9和7 mg/L。该方法简便、快速,重现性和准确度较好,可作为测定双黄连口服液中绿原酸、咖啡酸、黄芩甙和木樨草素的有效方法。     

高效液相色谱二极管阵列检测法同时测定丹参滴注液中四种水溶性成分的含量

建立了高效液相色谱二极管阵列检测(HPLC-DAD)法同时测定丹参滴注液中丹参素、原儿茶醛、迷迭香酸和丹酚酸B四种水溶性成分的含量。采用DiamonsilTMC18色谱柱(250×4.6 mm,5μm),以甲醇和5%冰乙酸为流动相进行梯度洗脱,流速为1.0mL/min,柱温30℃,检测波长为286 nm。在此色谱条件下四种水溶性成分可完全分离。丹参素、原儿茶醛、迷迭香酸和丹酚酸B的线性范围分别为0.2192~1.934μg(r=0.9999),0.03508~0.2456μg(r=1.0000),0.2592~1.814μg(r=1.0000),0.3864~2.705μg(r=0.9999)。平均回收率丹参素为102.6%,相对标准偏差(RSD)为0.55%;原儿茶醛为103.5%,RSD为0.42%;迷迭香酸为99.8%,RSD为0.68%;丹酚酸B为102.8%,RSD为0.49%。该方法简单、快速,四组分分离良好,可用于丹参滴注液的质量控制。     

高效液相色谱法测定大鼠血浆中的原儿茶酸

建立了大鼠血浆中原儿茶酸含量测定的高效液相色谱方法。采用的色谱柱为DiamondsilTM C18 柱(150 mm×4.6 mm,5 μm);流动相为乙腈-水(体积比为9∶91,用H3PO4 调pH至2.5);流速1.2 mL/min;检测波长260 nm;内标为对羟基苯甲酸。原儿茶酸的线性范围为0.050~3.20 mg/L,线性相关系数为0.9978，最低定量限为0.050 mg/L,日内和日间测定的精密度（以相对标准偏差表示）均低于7.0%,准确度（以相对误差表示）为-1.4%～2.6%；在0.050,0.40,3.20 mg/L低、中、高3个添加浓度水平下，血浆样品的提取回收率分别为83.4%,87.3%,91.1%。该方法简便,灵敏,准确,适用于大鼠体内原儿茶酸的药物动力学研究。     

在线扫集-胶束毛细管电动色谱法测定扛板归中的阿魏酸、咖啡酸和原儿茶酸

采用在线扫集-胶束毛细管电动色谱法(sweeping-MEKC)分离测定扛板归中的阿魏酸、咖啡酸和原儿茶酸。采用未涂层熔融石英毛细管(50 cm×50μm,有效柱长36 cm);环境温度25℃;缓冲体系为20 mmol/L NaH2PO4-80mmol/L十二烷基磺酸钠(SDS)-12.5%乙腈(V/V)(pH 2.20),紫外检测波长为216 nm,运行分离电压-20 kV,进样时间100 s。在优化条件下,3种有机酸均在20 min内出峰,峰面积RSD均小于5%。检出限分别达到98.52,118.73和27.27μg/L。