Ultraviolet spectral identification of ferulic acid in rabbit plasma by HPLC and its pharmacokinetic application

A simple and sensitive high-performance liquid chromatography method for the analysis of ferulic acid in rabbit plasma has been developed. Up to 0.1 ml of plasma containing ferulic acid was deproteinized by acetonitrile, which contained an internal standard (coumarin). The supernatant was injected into a Nucleosil 7C18 column acetonitrile-water-phosphoric acid (30:70:0.1, v/v; pH 2.5) as the mobile phase and UV detection at 322 nm, followed by UV spectral identification (between 200 and 380 nm) using a photodiode array detector. The method is rapid, easily reproduced, selective and sensitive. It was applied to pharmacokinetic studies. A biphasic phenomenon, i.e. a rapid distribution phase followed by a slower elimination phase, was observed from the plasma concentration-time curve. Compartmental analysis yielded a two-compartment open model.     

HPLC同时测定益精丸中梓醇和阿魏酸的含量

目的建立测定益精丸中梓醇和阿魏酸含量的HPLC方法。方法色谱条件:色谱柱:Atlantis T3 C18色谱柱(4.6 mm×250 mm,5μm);混合流动相:乙腈(A)-0.1%磷酸(B)梯度洗脱;流速:0.8 ml/min;检测波长:210 nm;柱温:32℃。结果梓醇和阿魏酸分别在6.24~124.80μg/ml(r=0.9997,n=6),4.96~99.20μg/ml(r=1.0000,n=6)范围内线性关系良好,平均回收率分别为95.2%、95.3%,RSD分别为1.3%和1.8%。结论该方法简单、快速、准确可靠,可用于测定益精丸中梓醇和阿魏酸含量。     

Effects of the coexisting diterpenoid tanshinones on the pharmacokinetics of cryptotanshinone and tanshinone IIA in rat

Tanshinone II_A and cryptotanshinone are the main pharmacologically active components in the Chinese herb drug Salvia miltiorrhiza Bge. The objective of this study was to investigate the effect of coexisting tanshinones in liposoluble ethanol extract of S. miltiorrhiza Bge. on the rat pharmacokinetics of tanshinone II_A and cryptotanshinone after oral intra-gavage administration of the tanshinones extract. Rats were given the tanshinones extract 23.3 mg/kg (equivalent to 5.7 mg/kg cryptotanshinone and 8.0 mg/kg tanshinone II_A), cryptotanshinone 5.7 mg/kg, or tanshinone II_A 8.0 mg/kg orally under overnight fasted conditions. Blood samples were taken at predetermined sampling time interval and the concentrations of cryptotanshinone and tanshinone II_A were determined by a validated LC–MS/MS method. The peak plasma concentrations of cryptotanshinone and tanshinone II_A were considerably increased (about 8 and 10 folds) after oral administration of the extract in comparison with the equivalent dose of single component administration, respectively. The areas under the plasma concentration–time curve (AUC) of cryptotanshinone and tanshinone II_A were both significantly increased (P < 0.001) as well. Tanshinone II_A was also found after the administration of cryptotanshinone alone, and the fraction of metabolism of tanshinone II_A was 21.0 ± 4.1%. Therefore, the pharmacokinetics of cryptotanshinone and tanshinone II_A in rats after administration of the tanshinones extract were significantly affected by the coexisting tanshinones. In conclusion, the herb-drug interactions occurred between coexisting tanshinones and cryptotanshinone or tanshinone II_A affected their absorption, transformation and metabolism.     

HPLC法同时测定杏花中阿魏酸、芦丁和异槲皮苷

目的建立HPLC法同时测定杏花中阿魏酸、芦丁和异槲皮苷。方法色谱柱为YMC-Pack ODS-A C_(18)柱(250 mm×4.6 mm,5μm);流动相为乙腈-0.1%磷酸溶液(15∶85);体积流量1.0 mL/min;检测波长为343 nm;柱温为30℃。结果阿魏酸、芦丁和异槲皮苷分别在0.029 08~0.290 8μg(r=0.999 9)、0.548 4~5.484 2μg(r=0.999 9)、0.033 07~0.330 7μg(r=0.999 9)范围内线性关系良好;平均回收率分别为98.31%、98.93%、100.25%,RSD分别为1.0%、0.9%、1.1%。10批杏花样品中阿魏酸、芦丁、异槲皮苷含量测定结果分别为0.105~0.554、3.080~6.933、0.258~0.974 mg/g。结论该方法多种成分同时测定,操作简便、准确,重复性好,可用于杏花药材的质量控制。     

HPLC法测定草香胃康胶囊中阿魏酸的含量

目的：建立草香胃康胶囊中阿魏酸的HPLC测定方法。方法：采用AgilentTC-C18柱（150mm×4.6mm,5μm）,流动相为甲醇-0.3%冰醋酸（35：65）,流速为1.0ml/min,检测波长为320nm,柱温为25℃。结果：阿魏酸在0.023～0.460μg范围内线性关系良好（r=0.9999）,平均回收率为98.82%,RSD为1.53%。结论：该方法简便、快速、准确,可作为检测草香胃康胶囊中阿魏酸的有效方法。     

HPLC法测定新生化颗粒中阿魏酸的含量

目的建立测定新生化颗粒中阿魏酸的含量。方法采用高效液相色谱法。色谱柱为phenomenex-00G-4375-E0（4μm，250×4．60mm）；流动相为乙腈-1％冰醋酸溶液（20：80）；流速1．0mL·min^-1．检测波长320nm；柱温25℃。结果阿魏酸进样量在0．0197×0．0983μg范围之间．与峰面积呈良好的线性关系（r=0．99998），平均加样回收率为99．7％，RSD=1．2％（n=5）。结论本法操作简便、快速、准确、灵敏、重现性好。可用作为新生化颗粒质量控制的有效方法。     

HPLC法同时测定活血止痛液中阿魏酸和咖啡酸的含量

目的：建立同时测定活血止痛液中阿魏酸和咖啡酸含量的HPLC方法。方法：采用Inertsil ODS-SP C18色谱柱（4.6 mm×250 mm,5μm）,流动相为乙腈-0.05%磷酸溶液（17∶83）,流速为1.0 mL· min-1,柱温为30℃,检测波长为320 nm,进样量为10μL。结果：阿魏酸和咖啡酸与其他杂质峰分离良好。阿魏酸在1.766~35.328μg· mL-1范围内线性关系良好（r =0.9999）;咖啡酸在0.835~16.704μg· mL-1范围内呈现良好的线性关系（r=0.9993）,阿魏酸和咖啡酸的平均加样回收率分别为100.79%、101.05%,RSD分别为1.73%（n=9）、1.87%（n=9）。结论：本方法简便,测定结果准确,重复性好,可作为活血止痛液的质量控制方法。     

高效液相色谱法测定宁神补心片中丹参酮IIA含量

目的建立高效液相色谱测定宁神补心片中丹参酮IIA含量的方法。方法利用Lichrospher5C18色谱柱,流动相为甲醇水(73∶27);检测波长为270nm;流速为1.6mL·min-1;柱温为30℃。结果进样量在0.208～1.664μg范围内呈现良好的线性关系,回归方程为Y=2.735×107X+8.870×105,r=0.9996,平均回收率为98.54%,RSD为1.33%(n=5)。结论该方法快速简便,准确可靠,灵敏度高,可用于宁神补心片的质量控制。     

HPLC法测定宫炎康胶囊中阿魏酸的含量

目的建立高效液相色谱法测定宫炎康胶囊中阿魏酸的含量。方法采用Aglient C18为色谱柱;流动相:乙腈-0.4%磷酸溶液(15∶85),流速为1.0 mL·min-1,检测波长为316 nm。结果阿魏酸在2.58¹2.88μg·mL-1范围内线性关系良好,回收率为98.4%,RSD=1.1%。结论方法简便,结果准确,能有效控制宫炎康胶囊的质量。     

HPLC法测定柏子养心胶囊中阿魏酸的含量

目的建立高效液相色谱法测定柏子养心胶囊中阿魏酸的含量。方法采用Watres Sunfire C18(4.6 mm×250 mm,5μm)色谱柱,甲醇-0.8%冰醋酸溶液(22∶78)为流动相,流速为1.0 mL·min-1,检测波长为320 nm,柱温30℃。结果阿魏酸线性范围为0.011～0.022 mg·mL-1(r=0.999 6),平均加样回收率为97.45%,RSD为0.58%(n=9)。结论本方法灵敏、准确,重现性好,可用于本制剂的含量测定及质量控制。     

HPLC法测定复方羊角片中阿魏酸的含量

目的测定复方羊角片中阿魏酸的含量.方法采用高效液相色谱法.色谱柱为Kromasil C18色谱柱(4.6×250mm,5μm),以甲醇-0.1%醋酸溶液(30∶70)为流动相;流速:1.0mL·min-1,检测波长321nm.结果阿魏酸的进样量在0.08~0.28μg范围内呈良好的线性关系(r=0.9999),平均加样回收率为100.3%,RSD为1.71%(n=6).结论方法简便、准确,可用于复方羊角片中阿魏酸的含量测定.     

补心安泰片中丹参酮ⅡA的含量测定

目的：建立补心安泰片中丹参酮Ⅱ。的含量测定方法。方法：Themao C18柱（250mm×4．6mm,5μm）;流动相：甲醇-水（75：25）;流速：1．0mL·min^-1;检测波长：270nm;柱温：30℃结果：线形范围0．0790～0．6323μg;回归方程为Y=265732x-128293,R=0．9995;平均回收率为97．6％,RSD为0．77％（n=6）。结论：此方法简便、快速、准确,可用于补心安泰片中丹参酮ⅡA的含量测定。     

HPLC法测定妇康宝口服液中阿魏酸的含量

目的：建立妇康宝口服液中阿魏酸含量的HPLC测定方法。方法：用Nova-Pak C18柱，以甲醇－乙腈－1％冰乙酸溶液（28：5：72）为流动相，在323nm波长处检测。结果：阿魏酸的线性范围为0．1245－1．4940ug,r=0.9993，平均加样回收率为99．77％，RSD为3．50％（n=6)。结论：方法简便，快速，准确，适合于妇康宝口服液生产的质量控制。     

Simultaneous determination of cryptotanshinone, tanshinone I and tanshinone IIA in traditional Chinese medicinal preparations containing Radix salvia miltiorrhiza by HPLC

A reversed-phase high performance liquid chromatographic method was established for the simultaneous determination of tanshinones in five kinds of traditional Chinese medicinal preparations (TCMPs) containing Radix salvia miltiorrhiza (Chinese herbal name: Danshen). Tanshinones including cryptotanshinone, tanshinone I and tanshinone IIA were successfully separated on a Diamonsil C18 column (150 mm x 4.6 mm i.d., 5 microm). The mobile phase was a mixture of methanol, tetrahydrofuran, water and glacial acetic acid (20:35:44:1, v/v/v/v), employing isocratic elution at a flow rate of 1.0 mL/min. Detection was accomplished at 254 nm. The compounds were identified by comparing their retention times and UV spectra in the 200-400 nm range with authentic standards. Regression equations revealed good linear relationship between the peak areas of the constituents and their concentrations (correlation coefficients: 0.9998 for cryptotanshinone, 0.9999 for tanshinone I and 1.0000 for tanshinone IIA). The relative standard deviations (n=6) of retention time and peak area were less than 0.25% and 1.00%, respectively. The recoveries were between 96.2% and 102.5%. The proposed method has been successfully applied to the simultaneous determination of the tanshinones in five kinds of Chinese herbal preparations containing Danshen within 20 min.     

高效液相色谱法同时测定脑血栓片中丹参素、原儿茶醛、芍药苷、阿魏酸和丹酚酸B的含量

目的:建立同时测定脑血栓片中丹参素、原儿茶醛、芍药苷、阿魏酸和丹酚酸 B 含量的方法。方法:采用反相高效液相色谱法,色谱柱:Zorbax Extend-C_(18)柱(4.6 mm×150 mm,5 μm),流动相:1%甲酸甲醇溶液(A)-1%甲酸溶液(B),梯度洗脱[0～8 min,A-B(8:92);8～23 min,A-B(8:92)→A-B(40:60)],流速1.0 mL·min~(-1),柱温30℃,检测器:DAD 检测器,检测波长为280 nm。结果:丹参素、原儿茶醛、芍药苷、阿魏酸和丹酚酸 B 的线性范围分别为0.072～0.72μg(r=0.9999),0.04～0.4μg(r=0.9999),0.032～0.32μg(r=0.9999),0.002～0.02μg(r=0.9993),0.08～0.8μg(r=0.9997);平均加样回收率(n=3)分别为97.2%,97.7%,98.3%,98.3%,96.7%。结论:本方法简便快速,结果准确可靠,适用于脑血栓片的质量控制。     

高效液相色谱法测定复脉定颗粒中阿魏酸含量

目的:应用高效液相色谱法测定复脉定颗粒中阿魏酸的含量。方法:采用DiamonsilTMC18色谱柱(5μm,250mm×4.6mm),流动相为乙腈-0.5%冰醋酸水溶液(20∶80),流速1.0mL/min,检测波长313nm。结果:阿魏酸在进样量0.232￣1.392μg范围内线性关系良好(r=0.9999);平均加样回收率为98.54%,RSD=0.58%(n=6)。结论:本法操作简便、准确,灵敏度高,重现性好,可用于复脉定颗粒中阿魏酸的含量测定。     

HPLC法测定舒筋活络酒中阿魏酸的含量

目的:建立舒筋活络酒中阿魏酸的含量测定方法.方法:采用高效液相色谱法测定舒筋活络酒中阿魏酸的含量.色谱柱为YMC-Pack(ODS-A,φ5 μm,150 mm×4.6 mm);流动相为甲醇-1%乙酸(20:80);流速 1.0 mL·min-1;检测波长为 320 nm.结果:阿魏酸的线性范围为0.038～1.216 μg,r=0.9997;回收率为97.41%,RSD为1.64%.结论:本法操作简便、结果准确,可作为舒筋活络酒的质量控制标准之一.     

HPLC法同时测定升麻甘草汤中咖啡酸和阿魏酸的含量

目的建立升麻甘草汤的质量标准控制方法.方法色谱柱DiamonsilC18(250mm×4.6mm,5μm),流动相:甲醇-0.1 mo·lL-1醋酸铵-冰醋酸(20∶80∶1);流速:1.0mL·min-1;检测波长:310 nm.结果咖啡酸在0.2～4mg·L-1浓度范围内呈良好的线性关系,平均回收率为103.6%(n=9);阿魏酸在1～10mg·L-1浓度范围内呈良好的线性关系,平均回收率为104.3%(n=9).结论本法简便、灵敏、准确,可有效控制升麻甘草汤的质量.     

HPLC法同时测定通脉颗粒中丹参素、阿魏酸和葛根素的含量

目的:建立同时测定复方通脉颗粒中丹参素、阿魏酸和葛根素含量的方法。方法:采用高效液相色谱法测定。色谱柱为Agilent Zorbax SB-C18柱,流动相为乙腈-1%冰醋酸,流速为1.0mL·min-1。结果:丹参素、阿魏酸和葛根素的线性范围分别为2.95～29.5μg·mL-1(r=0.9999)、1.288～16.10μg·mL-1(r=0.9999)和5.26～52.6μg·mL-1(r=0.9997);平均加样回收率(n=6)分别为99.92%(RSD=1.53%)、100.0%(RSD=2.74%)和99.05%(RSD=1.46%)。结论:本方法简便、快速、可靠,可用于复方通脉颗粒的质量控制。     

HPLC法同时测定川芎药材中阿魏酸和藁本内酯的含量

目的:建立高效液相色谱法同时测定川芎药材中阿魏酸和藁本内酯的方法。方法:采用Dikma Kromasil C18(250 nm×4.6 mm,5μm)色谱柱;流动相为甲醇-0.1%冰醋酸水溶液(65∶35);流速1.0 mL.min-1;检测波长:320nm;柱温30℃。结果:川芎药材中2种成分得到良好的分离,阿魏酸在0.032~0.3179μg范围内,藁本内酯在0.244~2.44μg范围内线性关系良好,平均回收率分别为98.4%和98.8%。结论:本方法简便,准确,重复性好,为多组分评价川芎药材质量提供了可靠的分析方法。