Determination of Chlorogenic Acid,Geniposide,Total Flavonoids and Total Triterpenes in Wulan-13

[Objectives]This study was conducted to establish a method for the determination of chlorogenic acid,geniposide,total flavonoids and total triterpenes in Wulan-13.[Methods]The contents of chlorogenic acid and geniposide were determined by HPLC,and the contents of total flavonoids and total triterpenes were determined by an ultraviolet spectrophotometer.[Results]There was a good linear relation between the mass of chlorogenic acid reference substance and the peak area in the range of 0.05-0.45μg,and the regression equation was Y=2524.1X+3.1943,(r=0.9998).A good linear relationship was found between the mass of gardenoside reference substance and the peak area in the range of 0.776-6.984μg,and the regression equation was Y=1670.5X+64.804,(r=0.9998).There was also a good linear relation between the mass of rutin reference substance and its absorbance in the range of 0.00808-0.04848 mg,and the regression equation was Y=12.916X+0.014,(r=0.999).The mass of oleanolic acid reference substance had a good linear relation with its absorbance in the range of 0.00418-0.0209 mg,and the regression equation was Y=51.89X-0.0839,(r=0.9991).[Conclusions]The content determination method is simple,reliable and reproducible,and suitable for controlling the contents of chlorogenic acid,geniposide,total flavonoids and total triterpenes in Wulan-13.

Determination of Capsaicin and Dihydrocapsaicin in Capsicum( Capsicum annuum) Products by High Performance Liquid Chromatography-Fluorescence Detection( HPLCFLD)

[Objectives] This study was conducted to determine capsaicin and dihydrocapsaicin in capsicum products. [Methods]The sample was ultrasonically extracted with anhydrous ethanol as the extraction solvent for capsaicin and dihydrocapsaicin,followed by centrifugation. The extract was subjected to HPLC separation with methanol-water( 65∶ 35) as the mobile phase,and a fluorescence detector( Ex = 229 nm,Em = 320 nm) was used to detect capsaicinoids in the sample. [Results] Capsaicin and dihydrocapsaicin had a good linear relationship in the range of 1-200 mg/L( R_1~2= 0. 999 8,R22= 0. 999 6). The detection limits were both 0. 007 mg/kg; the quantification limits were both 0. 02 mg/kg; the precision was 0. 235% and 0. 754%,respectively; and the average recoveries were95. 94% and 95. 39%,respectively. [Conclusions]The method is simple,rapid,with good sensitivity and precision,and is suitable for detecting capsaicin substances in capsicum products.

HPLC法同时测定脑脉泰胶囊中12种成分的含量

目的建立HPLC法同时测定脑脉泰胶囊中3′-羟基葛根素、2-羟基红花黄色素A、葛根素、葛根素芹菜糖苷、3′-甲氧基葛根素、大豆苷、二苯乙烯苷、木犀草苷、染料木苷、木犀草素、丹酚酸B、迷迭香酸的含量。方法分析采用KromasilC_(18)色谱柱(250mm×4.6mm,5μm);流动相乙腈-水(含1.0g/L磷酸),梯度洗脱;体积流量0.8mL/min;柱温30℃;检测波长280nm。再进行聚类分析、主成分分析。结果12种成分在各自范围内线性关系良好(r>0.9990),平均加样回收率97.07%~98.30%,RSD0.86%~1.82%。10批样品聚为4类,4种主成分累积方差贡献率达86.262%。结论该方法简便稳定,可靠准确,可为脑脉泰胶囊的质量控制提供科学依据。

HPLC法测定肾康灵胶囊中盐酸小檗碱的含量

目的 建立肾康灵胶囊中盐酸小檗碱的HPLC含量测定方法,为质量控制提供依据。方法 采用HPLC法,色谱柱:Sapphire-C_(18)柱(4.6×250 mm, 5μm);流动相:乙腈-0.1%磷酸溶液(梯度洗脱);流动相流速:1.0 mL·min^(-1);检测波长:265 nm;柱温:30℃,进样量:10μL。结果 盐酸小檗碱含量在0.0584~0.5840μg范围内与峰面积值呈良好线性关系(R^(2)=0.9981),精密度和重复性试验的RSD均<2.0%(n=6),稳定性试验(18 h内)的RSD为1.11%,平均加样回收率为98.24%,RSD=1.43%(n=6)。结论 该方法快速简便、稳定性好,专属性强,重复性良好,可为肾康灵胶囊的质量控制提供依据。

HPLC法同时测定五味消渴颗粒中5种成分研究

目的建立高效液相色谱法(HPLC)以同时测定五味消渴颗粒中的芦丁、甘草苷、盐酸巴马汀、盐酸小檗碱、甘草酸铵的成分。方法五味消渴颗粒的甲醇提取液采用Waters SunFire TM C_(18)色谱柱(250 mm×4.6 mm,5µm);以乙腈-0.02 mol/L磷酸二氢钾溶液为流动相,梯度洗脱,检测波长为260 nm、370 nm;流速1.0 mL/min;柱温30℃。结果5种成分在各自范围内线性关系良好(r≥0.9996),平均加样回收率为100.44%~103.50%,相对标准偏差(RSD)为0.92%~3.99%。结论建立的测定方法简便可靠、重现性好,可为五味消渴颗粒的质量评价提供参考。

HPLC法同时测定杠板归不同部位中5种成分的含量

目的建立高效液相色谱法同时测定杠板归不同部位(茎、叶、根)中5种成分的含量。方法采用Luna?-C18(4.6 mm×250 mm,5μm)色谱柱,以乙腈-0.1%磷酸水为流动相梯度洗脱,流速为1.0 mL/min,检测波长为320 nm,柱温为30℃,测定杠板归不同部位中绿原酸、咖啡酸、芦丁、阿魏酸、槲皮素的含量。结果绿原酸、咖啡酸、芦丁、阿魏酸、槲皮素分别在0.046~4.6μg/mL,0.212~21.2μg/mL,0.055~5.5μg/mL,0.084~8.4μg/mL,0.114~11.4μg/mL范围内质量浓度与峰面积呈线性关系良好(r>0.9990),平均加样回收率为97.65%~102.09%,RSD为1.76%~2.44%。不同部位中5种成分含量差异较大,绿原酸和咖啡酸2个成分在叶中含量高,且远远高于根和茎中的含量;芦丁和阿魏酸主要存在于茎和根中,叶中未检测到;槲皮素在茎中含量最高,叶中次之,根中最低。结论建立的HPLC方法准确可靠、重复性好、专属性强,可用于杠板归不同部位中5个成分含量的同时测定。

HPLC-ELSD同时测定腺梗豨莶草中6个二萜成分的含量

为了研究腺梗豨莶草中6个二萜成分(对映海松烯型二萜:奇任醇、Hythiemoside B和豨莶精醇;对映贝壳杉烷型二萜:对映-17,18-二羟基-贝壳杉烷-19-羧酸、对映-16β,17-二羟基-贝壳杉烷-19-羧酸和对映-16α氢-贝壳杉烷-17,19-二羧酸)的含量,本试验建立了高效液相色谱法-蒸发光散射检测器(HPLC-ELSD)同时测定二萜类化合物含量。样品粉碎过筛加甲醇和乙酸乙酯回流提取,蒸发减压除去溶剂,甲醇溶解,0.45μm滤膜滤过,取续滤液进行测定。色谱条件:色谱柱为Waters Symmetry Shield^(TM)RP18柱(250 mm×4.6 mm,5μm),流动相为0.3%甲酸水溶液-乙腈(v/v),梯度洗脱,流速为1.0 mL/min。蒸发光散射检测器漂移管温度为103℃,雾化气流速为3.0 L/min。应用该方法测定腺梗豨莶草样品不同部位中6个二萜类化合物的含量,同时比较叶、枝、茎中对映海松烯型二萜、对映贝壳杉型二萜和总二萜含量的差异。结果显示,6个二萜成分在其线性范围内线性关系良好(r≥0.9992);日内和日间精密度相对标准偏差(RSD)均小于3.5%;回收率介于96.5%~101.5%,RSD均小于2.3%;腺梗豨莶草不同部位(叶、枝、茎)的二萜类化合物含量差异较大。结果表明,本试验所建立的HPLC-ELSD方法简便、准确、重复性好,为腺梗豨莶草药材全面的质量评价和临床应用中最佳药用部位的选择提供了参考。

Development of RP-HPLC method for simultaneous determination of docetaxel and curcumin in rat plasma: Validation and stability

The purpose of the present research was to develop a suitable, simple, precise, accurate,robust, and reproducible RP-HPLC method for a reliable simultaneous quantification of docetaxel(DTX) and curcumin(CCM) in rat plasma samples using paclitaxel(PTX) as an internal standard. The samples were assayed by the Agilent 1260 Infinity HPLC instrument using a Capcell Pak C8 column(4.6 mm × 150 mm, 5 μm) under isocratic conditions. The mobile phase consisted of acetonitrile and triple distilled water(40/60, v/v) with a flow rate of 1.0 ml/min. The eluent was monitored at 230 nm for simultaneous measurement of curcumin and docetaxel. The method was validated by determining system suitability, selectivity, sensitivity, linearity, inter-day and intra-day precision, accuracy, robustness, and stability in accordance with the guidelines of the United States Food and Drug Administration(FDA).The developed chromatographic method proved to be simple, precise, accurate, robust and reproducible. Moreover, the samples showed stability at room temperature over a period of 48 h. Thus, this method would be employed for routine simultaneous quantification of docetaxel and curcumin in rat plasma samples.

HPLC法同时测定补肾活血散结胶囊中12种成分的含量

目的建立HPLC法同时测定补肾活血散结胶囊中没食子酸、原儿茶酸、莫诺苷、马钱苷、獐牙菜苷、芍药苷、金丝桃苷、紫云英苷、丹酚酸B、丹酚酸A、朝藿定C、淫羊藿苷的含量。方法分析采用Agilent 5 TC-C_(18)色谱柱(250 mm×4.6 mm,5μm);流动相乙腈-0.1%磷酸,梯度洗脱;体积流量1.0 mL/min;柱温30℃;检测波长240 nm。结果12种成分在各自范围内线性关系良好(r≥0.9998),平均加样回收率97.11%~101.14%,RSD 0.60%~2.65%。结论该方法简便准确,重复性好,可用于补肾活血散结胶囊的质量控制。

HPLC指纹图谱结合多指标含量测定的养阴生肌肠溶胶囊质量评价研究

目的建立养阴生肌肠溶胶囊HPLC指纹图谱,测定龙胆苦苷、芍药内酯苷、芍药苷、甘草苷、盐酸小檗碱、吴茱萸碱和吴茱萸次碱的含量,为其质量控制提供参考。方法按照制备工艺对组方药物进行水解和醇沉,将样品内容物溶于70%甲醇进行供试品溶液制备,采用Agilent5HC-C18(2)色谱柱(250mm×4.6mm,5μm)进行分析,流动相为乙腈-0.1%磷酸水溶液,梯度洗脱,流速1.0 mL/min,柱温30℃,检测波长230 nm。采用OriginPro2021、《中药色谱指纹图谱相似度评价系统》(2012版)、SIMCA14.1软件及SPSS25.0统计软件对结果进行聚类分析、相似度评价及主成分分析。结果建立了养阴生肌肠溶胶囊HPLC指纹图谱及同时测定7个成分的方法,13批样品指纹图谱共标定25个共有峰,相似度良好(r≥0.994),聚类分析、主成分分析均将13批样品分为2类;7个成分在各自范围内线性关系良好(r≥0.9991),加样回收率为95.77%~103.80%,RSD为1.0%~2.5%。结论本研究建立的HPLC指纹图谱和含量测定方法简便可靠、重复性好,可为全面、有效地控制养阴生肌肠溶胶囊的质量提供依据。

缩宫素注射剂生物测定法与HPLC含量测定比较

通过比较缩宫素注射剂生物测定法和高效液相色谱法含量测定结果,探讨缩宫素注射剂高效液相色谱法含量测定替代生物测定效价的合理性和准确性。对10批缩宫素注射剂进行生物测定法和高效液相色谱法含量测定。结果显示,10批缩宫素注射剂的生物测定法和高效液相色谱法含量测定结果无明显差异,初步表明通过高效液相色谱法测定含量可以代替注射用缩宫素的生物测定法结果。

HPLC法同时测定3种滑膜炎制剂中9种成分的含量

目的 建立HPLC法同时测定滑膜炎颗粒、胶囊、片剂中迷迭香酸、丹酚酸B、丹酚酸A、丹参素、原儿茶醛、绿原酸、隐绿原酸、新绿原酸、咖啡酸的含量。方法 分析采用Xselect■HSS T3色谱柱(250 mm×4.6 mm, 5μm);流动相乙腈-0.1%磷酸,梯度洗脱;体积流量1 mL/min;柱温30℃;检测波长280、287、327 nm。结果 9种成分在各自范围内线性关系良好(r>0.999 0),平均加样回收率97.05%~102.14%,RSD 0.91%~2.59%。不同制剂中丹酚酸B含量均符合2020年版《中国药典》要求,各成分综合含量依次为颗粒>胶囊>片剂(B公司)>片剂(E公司)>片剂(D公司)>片剂(C公司)。结论 该方法简便、快速、稳定,结果准确可靠,可为滑膜炎制剂质量标准提升提供参考依据。

RP-HPLC Method for the Simultaneous Determination of Lisinopril and NSAIDs in API, Pharmaceutical Formulations and Human Serum

High performance liquid chromatographic method was developed valdated and applied for the simultaneous determi- nation of lisinopril and NSAIDs in bulk, pharmaceuticals formulations and human serum. A Purospher star C18 (5 μm, 25 × 0.46 cm) column was used with mobile phase consisting of methanol: water: acetonitrile (80:17.5:2.5 v/v, pH 3.0) and quantitative evaluation was performed at 225 nm with a flow rate of 1.0 mL?min–1. The retention time of lisinopril was 2.2 min while naproxen, flurbiprofen, diclofenac sodium and mefenamic acid were found to be 4.0, 4.5, 5.0 and 6.7 min respectively. Suitability of this method for the quantitative determination of the drugs was proved by validation in accordance with the requirements laid down by International Conference on Harmonization (ICH) guidelines. The method is selective, precise, accurate and can be used for analysis of pharmaceutical preparations in quality control and clinical laboratories.

Content Determination of Astragaloside Ⅳ in Astragalus from Three Different Regions by HPLC

[Objectives] The content of astragaloside in Astragalus membranaceus(Fisch.) Bge.var.mongholicus(Bge.) Hisao from three different regions was determined.[Methods] Referring to the method recorded in the Chinese Pharmacopoeia(2015 edition),the content of astragaloside IV in A.membranaceus was determined by HPLC.[Results] There were great differences in the astragaloside IV content of A.membranaceus among different regions.The content of astragaloside IV in A.membranaceus cultivated in Inner Mongolia was highest(0.155%),followed by that(0.143%) in A.membranaceus cultivated in Gansu,and the content of astragaloside IV in A.membranaceus cultivated in Shanxi was lowest(0.080%).The contents of astragaloside IV in A.membranaceus from different regions were all in line with the standard(not less than 0.040%) of Chinese Pharmacopoeia(2015 edition).[Conclusions]The content of astragaloside IV in A.membranaceus cultivated in three different regions met the medicinal standards.

Study on HPLC Fingerprint and Simultaneous Determination of Three Active Components of Dipsaci Radix Collected in Different Time

[Objectives] To establish methods of HPLC fingerprint and simultaneous determination of the three bioactive components(namely, asperosaponin VI, loganin and sweroside) of Dipsaci Radix, and explore the quality situation of this crude medicine collected in various months in autumn. [Methods] The analysis was performed on Thermo BDS Hypersil C_(18)(4.6 mm×250 mm, 5 μm) column with a mixture of acetonitrile and 0.1% phosphoric acid as mobile phase in gradient mood at a flow rate of 1.0 mL/min, the column temperature was set at 30 ℃, and the detection wavelength was 220 nm. [Results] The analysis methods for HPLC fingerprint and determination of the three components in Dipsaci Radix had been established. The results showed that 12 batches of samples, which were collected in four different places from September to November, possessed the similarities of greater than 0.976. Through the quantitative analysis of asperosaponin VI, loganin and sweroside in Dipsaci Radix, it was found that the quality variation of this herbal medicine and the different collected months of autumn showed a low correlation. [Conclusions] The established methods of HPLC characteristic fingerprint and simultaneous determination of three glycosides provided a new way for quality analysis of Dipsaci Radix. It was preliminarily indicated that collecting this plant medicine in different months of autumn would not affect its quality.

基于HPLC指纹图谱结合化学模式识别以及多指标成分定量评价前胡药材质量

基于HPLC指纹图谱和多指标成分含量测定,并结合化学模式识别,评价不同产地前胡药材质量。采用Agilent SB-C_(18)(4.6 mm×250 mm,5μm)色谱柱,以甲醇-0.5%甲酸水为流动相进行梯度洗脱,流速为0.5 mL/min,检测波长321 nm,建立指纹图谱并对4个香豆素类成分进行定量,采用聚类分析(hierarchical clustering analysis,HCA)、主成分分析(principal component analysis,PCA)、偏最小二乘法-判别分析(partial least squares discriminant analysis,PLS-DA)对不同产地前胡药材进行质量评价。结果显示16批前胡药材HPLC指纹图谱相似度为0.966~0.999,确定了21个共有峰,共指认了9个成分。通过化学模式识别分析,将16批样品聚类为三类:以安徽宁国、亳州等为主的道地产区前胡,以湖南、贵州、重庆等为主的前胡,以及高海拔云南产区的前胡,并确立8个差异性质量标志物。多指标含量测定不同产地前胡的佛手柑内酯、白花前胡甲素、白花前胡乙素、白花前胡素E含量分别为0.0167~0.1319 mg/g、6.0696~16.2255 mg/g、0.4265~2.0100 mg/g、1.3407~3.1155 mg/g。本研究所建立的指纹图谱和含量测定方法专属性强,稳定性高,分离度良好,结合化学模式可用于前胡药材的质量评价。

基于HPLC-QQQ-MS技术探讨炮制对肉苁蓉中5个活性成分的含量影响

炮制一般会对中药材的成分及药效产生重要作用,本文为了探讨炮制加工对肉苁蓉成分的影响,建立了同时测定炮制前后肉苁蓉中肉苁蓉苷F、毛蕊花糖苷、毛蕊花糖苷、2′-乙酰基毛蕊花糖苷和松果菊苷的含量的高效液相色谱-串联三重四极杆质谱法(high-performance liquid chromatography-tandem triple quadrupole mass spectrometry,HPLC-QQQ-MS)的检测方法。采用50%甲醇溶液提取药物粉末,在Agilent Zorbax Eclipse Plus C 18(2.1 mm×150 mm,1.8μm)的色谱柱上,以0.1%甲酸水(A)-乙腈(B)为流动相进行梯度洗脱,选取负离子多反应监测(multiple reaction monitoring,MRM)模式,以木通苯乙醇苷为内标成分,以进样量1μL,流速0.3 mL/min,柱温35℃,样品管理器温度8℃于HPLC-QQQ-MS进行同一批次炮制前后肉苁蓉中这五种成分的含量测定。结果显示5种成分在各自范围内线性关系良好,相关系数(r)在0.9929~0.9985之间,平均加样回收率在98.15%~100.2%,相对标准偏差(relative standard deviation,RSD)小于4.6%。所建立的研究方法简便准确,可用于肉苁蓉的质量控制,并用于评价炮制对肉苁蓉含量及药效的影响。

Simultaneous Determination of Six Constituents in Cangbaiqutong Capsule by HPLC Wavelength Switching Technique

[Objectives] To establish a high performance liquid chromatography (HPLC) wavelength switching method for the simultaneous determination of content of six constituents (phellodendrine chloride, gentiopicrin, paeoniflorin, tetrandrine, berberine hydrochloride and paeonol) in Cangbaiqutong capsules, and provide a scientific basis for the comprehensive evaluation of the quality of Cangbaiqutong capsule.[Methods] The chromatographic column of Waters XSELECT CSH-C 18 (4.6 mm × 150 mm, 5 μm), the mobile phase of acetonitrile-0.1% phosphate solution, gradient elution (0-15 min,10%-18% A;15-30 min,18%-50% A;30-35 min, 50%-10% A);the flow rate of 1.0 mL/min, wavelength switching of 284 (0-7 min, phellodendrine), 274 (7-10 min, gentiopicrin), 230 (10-14 min, paeoniflorin) and 274 nm (14-35 min, tetrandrine, berberine hydrochloride, paeonol), the injection volume of 10 μL.[Results] There was a good linear relationship between the area of chromatographic peak and the injection volume of phellodendrine chloride, gentiopicrin, paeoniflorin, tetrandrine, berberine hydrochloride and paeonol in the range of 0.150-1.504, 0.768-7.680, 1.096-10.960, 0.220-2.200, 0.296-2.956, 0.0345-0.345 μg, respectively;the average recovery rates ( n =6) were 98.3%, 99.2%, 98.8%, 98.8%, 99.1% and 98.2%, respectively;the RSD value was 1.32%, 1.46%, 1.08%, 1.31%, 1.26% and 1.21%, respectively.[Conclusions] The method can be used to determine many kinds of constituents at the same time, and the operation is simple, accurate and reproducible, and can be used for the quality control of compound Cangbaiqutong capsules.

HPLC法测定安普胶囊中红景天苷的含量

目的建立在安普胶囊中以红景天苷为指标性成分的含量的测定方法。方法选用甲醇-水(15∶85)为流动相,流速为1.0mL·min^(-1),检测波长为275nm,柱温为30℃。结果确定了安普胶囊的含量测定方法,在色谱条件下红景天苷回归方程为y=33.998x+2.9436(R2=0.9998),表明红景天苷在0.5~5mg·mL^(-1)浓度范围内线性关系良好。结论该方法简便、快捷,重现性好,能够满足实际质量控制的要求,可以用于安普胶囊中红景天苷含量的测定。

HPLC-UV法测定舒肝和胃丸中α-香附酮和香附烯酮的含量

目的:建立舒肝和胃丸中α-香附酮和香附烯酮的高效液相色谱(HPLC-UV)含量测定法,为该制剂中醋香附含量的质量控制提供依据。方法:对舒肝和胃丸中α-香附酮和香附烯酮同时进行含量测定。采用Agilent ZORBAX SB-C18色谱柱(4.6 mm×250 mm,5μm),流动相为甲醇和水(65∶35),流速1.0 mL·min^(-1),检测波长254 nm,柱温30℃,进样量5μL。结果:采用该方法得到的舒肝和胃丸色谱图中,α-香附酮和香附烯酮色谱峰与相邻色谱峰分离效果较好,满足含量测定的要求;指标性成分α-香附酮、香附烯酮分别在0.08036~0.80360μg、0.2112~2.1120μg范围内线性关系良好,相关系数均为1.000;平均加标回收率分别为102.0%(RSD:1.6%,n=6),102.4%(RSD:2.0%,n=6);稳定性(24 h)、重复性、精密度良好。结论:本研究建立的α-香附酮和香附烯酮HPLC-UV含量测定方法简单、快捷、准确,可为舒肝和胃丸中醋香附含量的控制提供依据。