首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 375 毫秒
1.
目的 分析鉴定大鼠灌胃洋川芎内酯A后血浆、尿液、胆汁及粪便内存在的代谢产物并推测其在大鼠体内的代谢途径。方法 SD (sprague dawley, SD)大鼠一次性灌胃给药后,收集不同时间(段)的血浆、尿液、胆汁及粪便,前处理后,采用超高效液相色谱-四极杆飞行时间质谱(ultra-high-performance liquid chromatography-quadrupole time-of-flight tandem mass spectrometry, UHPLC-Q-TOF-MS)技术,对代谢物进行结构表征。结果 最终在大鼠血浆、尿液、胆汁和粪便中共检测到43个代谢产物,其中38个为首次在洋川芎内酯A代谢产物中分析确认,其体内代谢主要发生氧化、去甲基化、内水解和饱和双键加氢等Ⅰ相代谢,以及硫酸盐结合、谷氨酰胺结合、牛磺酸结合、半胱氨酸结合和葡萄糖醛酸化等Ⅱ相代谢。结论 本研究初步揭示了洋川芎内酯A在大鼠血浆、尿液、胆汁和粪便中的代谢情况,为后期洋川芎内酯A活性代谢物筛选及作用机制研究提供参考。  相似文献   

2.
高霞  耿婷  曹雨虹  黄文哲  王振中  萧伟 《中草药》2017,48(21):4403-4412
目的采用UPLC-Q-TOF-MS/MS研究腰痹通胶囊在大鼠尿液和胆汁中的代谢产物,并归纳主要代谢途径。方法通过空白对照法寻找尿液和胆汁中可能的代谢产物,依据所获得的精确相对分子质量和二级碎片离子对代谢产物进行推测。结果在正、负离子模式下尿液中共检测到31个代谢产物,胆汁中共检测到35个代谢产物,主要为藁本内酯、3-丁基苯酞、蛇床子素、洋川芎内酯A、川芎内酯A、大黄素、紫花前胡醇或紫花前胡苷元或二氢山芹醇、紫堇杷明碱或异紫堇杷明碱、紫堇鳞茎碱或异紫堇鳞茎碱或元胡菲碱、别隐品碱、阿魏酸、隐绿原酸、当归醇类等化合物的I相或II相代谢产物,主要代谢途径为内酯环水解、羟基化、去甲基、脱水、脱氢、脱羟基、氢化、甲基化、甲基氧化、葡萄糖醛酸化、硫酸酯化、N-乙酰半胱氨酸结合、半胱氨酸结合、半胱氨酸-甘氨酸结合、谷胱甘肽结合等。此外,胆汁中检测到3个原型成分,即芍药苷、芍药内酯苷和人参皂苷Rg1。结论建立的UPLC-Q-TOF-MS/MS方法能够分析出腰痹通胶囊在大鼠尿液和胆汁中的代谢产物,初步阐明了腰痹通胶囊的体内代谢特征,为腰痹通胶囊在体内发挥疗效的药效物质基础研究提供了依据。  相似文献   

3.
《中成药》2017,(3)
目的分析原儿茶酸在大鼠体内的代谢产物。方法大鼠灌胃原儿茶酸-0.5%羧甲基纤维素钠混悬液后,通过超高效液相色谱-四极杆飞行时间质谱(UPLC-QTOF/MS)法分析该成分在大鼠血浆、尿液、胆汁、粪便中的代谢产物。结果在大鼠血浆、尿液、胆汁中,分别发现了9、4、1个原儿茶酸代谢产物,而粪便中未发现。结论原儿茶酸在大鼠体内吸收入血代谢,不经粪便原形排出。  相似文献   

4.
目的:研究当归、川芎和当归-川芎药对(归芎药对)中阿魏酸、绿原酸和咖啡酸在血虚大鼠血浆、尿液和胆汁中的代谢产物。方法:采用乙酰苯肼和环磷酰胺联合复制大鼠血虚模型,血虚大鼠灌胃当归、川芎和归芎药对提取物后,采用UPLC-Q-TOF/MS联用技术,利用碰撞能量梯度(MSE)和质量亏损过滤(MDF)技术,对其血浆、尿液和胆汁中的代谢产物进行分析。结果:根据离子碎片和代谢途径,当归、川芎和归芎药对提取物中阿魏酸、绿原酸和咖啡酸在血虚大鼠血浆、尿液和胆汁中推测出原型、还原、水解、甲基化、羟基化、硫酸酯化、葡萄糖醛酸化、磺酸化、甘氨酸结合、乙酰化、半胱氨酸结合和谷胱甘肽结合等共25个代谢产物。结论:当归、川芎和归芎药对提取物在血虚大鼠体内存在多种Ⅰ相和Ⅱ相代谢产物,为阐明该药对及其组成药味在体内发挥疗效的功效物质基础和作用机制提供依据。  相似文献   

5.
目的研究柚皮素在大鼠体内的代谢途径,为柚皮素的进一步研究开发提供参考依据。方法大鼠ig给予柚皮素,收集不同时间段胆汁、尿液、粪便和血浆,应用液相色谱-三重四级杆-线性离子阱串联质谱(LC-QTRAP-MS)寻找和解析柚皮素在大鼠体内各生物基质中的可能代谢产物。通过对柚皮素裂解规律的研究,解析柚皮素在大鼠体内的可能代谢途径。结果在ig给予柚皮素后大鼠的胆汁、尿、粪和血浆中共检测出14个可能的代谢产物,其主要代谢途径包括氧化、甲基化以及葡糖醛酸化和硫酸化。结论柚皮素在大鼠体内经历了广泛的Ⅰ相和Ⅱ相代谢,代谢产物以Ⅱ相的葡萄糖醛酸和硫酸结合型代谢产物为主,通过尿排泄的代谢产物与原型相当,胆汁中以结合型代谢产物为主,在粪便中转化为原型排泄。  相似文献   

6.
目的:探讨黄连碱的体内外代谢产物及其代谢途径。方法:体内代谢采用单次灌胃大鼠黄连碱(剂量25 mg·kg~(-1)),收集给药后0~48 h的尿液和粪便,0~24 h的胆汁以及给药0. 25,1,2 h后的血浆和脑组织样品;体外代谢采用大鼠肝微粒体及肠道菌群孵育的方法;运用高分辨HPLC-MS/MS技术对生物样品中的药物原型及代谢物进行鉴定。选用ZORBAX SB-C_(18)色谱柱(4. 6 mm×150 mm,5μm),以乙腈-0. 1%甲酸水溶液为流动相梯度洗脱,流速1. 0 mL·min~(-1),柱温25℃。质谱使用电喷雾离子源(ESI),正、负离子检测模式,扫描范围m/z 50~1 200。对各色谱峰质谱图进行分析,根据准分子离子峰判断相对分子质量,进一步根据各色谱峰的主要碎片离子、保留时间等信息,与文献数据进行比较,推测化合物的结构。结果:在大鼠尿液、粪便、胆汁、血浆、脑组织、肝微粒体温孵和肠道菌群温孵样品中发现了黄连碱的17个代谢产物,Ⅰ相代谢产物11个,Ⅱ相代谢产物6个。这17个代谢产物是黄连碱在大鼠体内羟基化、去甲基化和脱氢作用、硫酸酯化、葡糖糖醛酸化后产生的。结论:黄连碱可在大鼠体内发生Ⅰ相和Ⅱ相代谢反应,代谢物主要存在于尿液中,主要代谢部位为肝脏;黄连碱胃肠道吸收较差,代谢少,大部分经粪便以原型排泄,为黄连碱的药效学和药理学研究提供了一定的物质基础。  相似文献   

7.
3-乙酰基-11-羰基-β-乳香酸在大鼠体内的代谢途径研究   总被引:1,自引:1,他引:0  
蔡悠悠  夏媛媛  谷元  刘昌孝  司端运 《中草药》2013,44(17):2427-2432
目的 研究3-乙酰基-11-羰基-β-乳香酸(AKBA)在大鼠体内的代谢途径.方法 大鼠ig AKBA 60 mg/kg后,收集胆汁、尿液及粪便,应用高效液相色谱-四级杆-离子阱质谱(HPLC-QTRAP-MS)技术分析AKBA在大鼠体内的代谢途径.结果 共检测到除原形药物外的15个代谢产物,提示AKBA在大鼠体内的主要代谢途径为去乙酰化、单羟基化、脱氢化及葡萄糖醛酸结合物.结论 AKBA在大鼠体内经历了广泛的Ⅰ相、Ⅱ相代谢,产生的代谢产物主要通过粪便及胆汁排泄;利用QTRAP技术的自动切换扫描(IDA)软件及增强型产物离子(EPI)扫描功能,能够快速得到高质量的MS2谱图,为AKBA代谢产物的鉴定提供了有效的检测手段.  相似文献   

8.
目的:研究大鼠口服芦丁后血浆、尿液、粪便和胆汁中的代谢产物。方法:按50 mg·kg~(-1)剂量对Wistar大鼠一次性灌胃芦丁,取不同时间点的血浆、尿液、粪便和胆汁,采用超高效液相色谱-四级杆-飞行时间串联质谱(UPLC-Q-TOF/MS)对各生物样品进行检测,分析样品中芦丁的代谢产物。流动相乙腈(A)-0.1%甲酸水溶液(B)梯度洗脱(0~10 min,5%~15%A;10~15 min,15%~60%A;15~18 min,60%~90%A;18~19 min,90%~5%A;19~22 min,5%A),流速0.4 m L·min~(-1),样品温度4℃;电喷雾离子源(ESI),负离子监测模式。结果:从大鼠血浆、尿液、粪便和胆汁中共鉴定出22个代谢产物,其中血浆中7个,尿液中19个,粪便中12个,胆汁中15个,代谢产物主要包括Ⅰ相的水解代谢产物和Ⅱ相的葡萄糖醛酸结合、硫酸结合及甲基化代谢产物。结论:芦丁在大鼠体内存在多种代谢途径,代谢产物主要包括去糖基化产物和苷元槲皮素进一步生物转化的代谢产物,为芦丁的体内代谢提供了重要信息。  相似文献   

9.
夏宏军  朱珊  梁键谋  陈丽霞  邸欣  邱峰 《中草药》2009,40(9):1362-1366
目的 对大鼠灌胃灯盏花素后收集的血浆、胆汁、尿液以及粪便中存在的灯盏乙素的代谢产物进行鉴定.方法 通过使用HPLC结合光电二极管阵列检测器(DAD),采用梯度洗脱的方法 ,对比分析给药组大鼠和空白组大鼠的血浆、胆汁、尿液以及粪便样品,并且在相同的液相色谱条件下与对照品的保留时间和紫外吸收特征进行对照来鉴定主要代谢产物.结果 从大鼠ig 20、200 mg/kg灯盏花素的血浆中鉴定了代谢产物野黄芩素-6-O-β-D-葡萄糖醛酸苷(scutellarein-6-O-β-D-glucuronide,M5);从大鼠ig 20、200 mg/kg灯盏花素的胆汁中鉴定了代谢产物野黄芩素-6,7-O-β-D-二葡萄糖醛酸苷(scutellarein-6,7-di-O-β-D-glucuronide,M1)、6-O-甲基-灯盏乙素(6-O-methylscutellarin,M3)、、野黄芩素-6-O-β-D-葡萄糖醛酸苷(scutellarein-6-O-β-D-glucuronide,M5)和灯盏乙素(黄芩素苷,scutellarin,M7),从大鼠ig 20 mg/kg灯盏花素的尿液中鉴定了代谢产物野黄芩素-6,7-O-β-D-二葡萄糖醛酸苷(scutellarein-6,7-di-O-β-D-glucuronide,M1),从大鼠ig 200 mg/kg灯盏花素的尿液中鉴定了代谢产物野黄芩素-6,7-O-β-D-二葡萄糖醛酸苷(scutellarein-6,7-di-O-β-D-glucuronide,M1)、野黄芩素(scutellarein,M2)和灯盏乙素(scutellarin,M7);从大鼠ig 200 mg/kg灯盏花素的粪便中鉴定了代谢产物野黄芩素(scutellarein,M2).结论 灯盏乙素在大鼠体内发生了广泛的代谢,并且主要以其代谢产物的形式存在;灯盏乙素在大鼠体内产生的代谢产物主要通过尿液和胆汁排泄.  相似文献   

10.
研究经典古方开心散类方定志小丸主要化学成分在抑郁模型大鼠体内的代谢产物,并归纳总结其代谢途径。通过慢性不可预知温和刺激(CUMS)建立抑郁大鼠模型,灌胃给予大鼠定志小丸提取液后,收集血液、胆汁、尿液、粪便并进行预处理,采用UPLC-Q-TOF-MSE技术进行检测,利用UPLC C18色谱柱,以乙腈-0.1%甲酸水溶液为流动相进行梯度洗脱,在负离子模式下获得MS/MSE质谱信息,通过对比空白与含药样品的液质数据,利用Metabolynx代谢产物分析软件处理,最终对定志小丸中9个活性化合物在血浆、胆汁、尿液、粪便中的33个代谢产物进行推测,并总结了其体内代谢途径。其中从大鼠血浆中鉴定了代谢产物3个,胆汁中鉴定3个,尿液和粪便中鉴定代谢产物共27个。为阐明定志小丸在体内发挥疗效的药效物质基础和作用机制提供依据。  相似文献   

11.
??OBJECTIVE To identify the metabolites of Pulsatilla oleanolic acid 3-??-L-rhamnopyranosyl (1??2) -??-L-pyran arabinoside (B7) in rat plasma, bile, urine, feces, and in vitro liver microsomes incubation system. METHODS An ultra-high performance liquid chromatography combined with electrospray ionization quadrupole time of flight mass spectrometry (UHPLC-Q-TOF-MS) method was developed and successfully applied to the study on the metabolites of B7 in rat plasma, bile, urine, feces, and in vitro liver microsomes incubation system after oral administration. RESULTS A total of 23 metabolites were identified, of which 12 metabolites were present in rat liver microsomes incubation system. CONCLUSION Deglycosylation, demethylation glucuronidation, and hydroxylation are the major metabolic transformation forms of B7 in rats in vivo and in vitro.  相似文献   

12.
??OBJECTIVE To identify the metabolites of imperatorin in rat urine, feces and bile after oral administration as well as the transformation products of imperatorin after incubation with rat liver microsomes with HPLC-QTrap-MS technology. METHODS The combination use of HPLC-QTrap-MS scanning mode including multiple ion monitoring-information dependent acquisition-enhanced product ion (MRM/MIM-IDA-EPI)mode, precursor scan-enhanced resolution-information dependent acquisition-enhanced product ion (PREC-ER-IDA-EPI)mode and enhanced product ion (EPI) mode were performed for the identification of the metabolites. Based on the simultaneous appearance of [M+H]+ and [M+NH4]+ in the spectrum of PREC, the molecular weight could be unambiguously identified. The structures of compounds were then identified by the fragment ions generated from these three modes. RESULTS With the HPLC-QTrap-MS method, 32 metabolites in urine sample, 14 metabolites in faces sample, 6 metabolites in bile sample and 17 transformation products from the rat liver microsomes sample were detected. CONCLUSION Imperatorin is metabolized mainly in liver and excreted through kidney. The metabolic profiles of imperatorin in vivo and in vitro have good correlation.  相似文献   

13.
目的 建立用于血浆中大黄素甲醚及其代谢产物含量测定的超高效三重四级杆质谱联用(UPLC-QTOF-MS)方法,研究其原型及代谢产物大鼠体内毒代动力学(TK)行为。方法 开展重复给药毒性试验的首次给药至给药结束的原型及其代谢产物的TK测定,计算动力学参数,评价大鼠口服不同剂量的大黄素甲醚后大鼠血浆中原型及代谢产物的暴露程度。结果 研究发现首末次给药后原型及代谢产物的血浆暴露量与给药剂量无剂量依存关系,3个给药剂量下,大黄素甲醚在体内ρmax无显著性差异(P>0.05)。大黄素甲醚及其代谢产物在大鼠体内平均驻留时间基本为10 h,并在16 h内消除。随给药剂量增加,代谢产物大黄素-8-O-β-D-葡萄糖苷,芦荟大黄素及大黄素血浆暴露量上升,出现轻度蓄积。结论 大黄素甲醚给药后,原型及其代谢物在体内消除缓慢,因此应严格控制给药剂量和给药间隔,防止体内成分蓄积发生不良反应。  相似文献   

14.
Objective: Chuanxiong Rhizoma (CR, the dried rhizomes of Ligusticum chuanxiong) is a well?known traditional Chinese medicine that promotes qi to activate blood, dispels wind, and relieves pain. To date, more than 118 constituents of CR have been isolated and identified. However, the in vivo mechanism of CR decoction is unclear and needs further investigation. In addition, to clarify the effective forms of CR, it is essential to reveal the absorbed constituents and metabolites of CR. Materials and Methods: The absorbed constituents and metabolites in urine and plasma samples of rats orally administered with CR decoction were screened and characterized using a high?performance liquid chromatography with diode array detector and combined with electrospray ionization ion trap time?of?flight multistage mass spectrometry technique. Results: In total, 102 compounds, including 11 absorbed constituents(eight phthalides and three phthalic acids) and 91 metabolites(71 phthalide-related and 20 phenolic acid-related), were detected in drug-containing rat urine and plasma samples, among which 33 were new metabolites of either CR or its constituents. Based on the structures of these metabolites, six phthalides (ligustilide, senkyunolide I/H, senkyunolide J/N, and butylidenephthalide) and three phenolic acids (ferulic acid, isoferulic acid, and caffeic acid) were proposed as their precursors. They were also deduced to be the main absorbed constituents of CR decoction, which should have closer relationships with its pharmacological effects than other constituents. Phthalide-related metabolites were formed through the metabolic reactions of hydration, hydroxylation, cysteine conjugation, acetylcysteine conjugation, methanethiol conjugation, mercaptomethanol conjugation, glucuronidation, and sulfation, whereas the phenolic acid-related metabolites were mainly formed by glucuronidation and sulfation. Conclusions: Six phthalides and three phenolic acids were shown to be the main precursors of the metabolites of CR, and 33 compounds were new metabolites of either CR or its constituents. These results are helpful for further understanding of the in vivo mechanism and effective forms of CR.  相似文献   

15.
目的 运用超高效液相色谱-四极杆飞行时间质谱(ultra performance liquid chromatography-quadrupole time-of-flight mass spectrometry,UHPLC-Q-TOF-MS)技术比较当归饮片与配伍后当归建中汤标准汤中有机酸、苯酞和香豆素3类成分的组分变化。方法 采用Thermo Accucore C18色谱柱(2.1 mm×150 mm,2.6 μm),质量分数0.1%乙酸-水(A相)-乙腈(B相)作为流动相,电喷雾质谱法(ESI-MS)检测采用正、负离子模式下进行梯度洗脱。应用PeakView软件对当归饮片与当归建中汤中的当归化学成分进行鉴定并记录离子峰强度,以离子峰强度作为成分含量比较的依据。结果 共指认出44个化合物,单味药中有1种成分在当归建中汤中未能检测出,当归配伍后,共有成分中9种含量无差异,5种含量减少,29种含量增加。有机酸类成分中,酸性较强的成分含量下降,其他成分含量增加;香豆素类成分的含量均升高;苯酞类成分的含量变化趋势并无一致性。结论 当归在配伍后多数成分含量增加(除某些成分也有其他组方药材贡献的情况外),与胶体溶液助溶或其他成分增溶作用相关; 绿原酸、阿魏酸等酸性较强有机酸类成分的减少可能与有机酸类溶出竞争有关。  相似文献   

16.
LC-MSn鉴定大鼠体内SIPI的代谢产物   总被引:2,自引:0,他引:2       下载免费PDF全文
 目的考察SIPI在大鼠体内的代谢转化。方法采用液相色谱-质谱(LC-MSn)联用技术,检测在单剂量静脉注射给予SIPI后大鼠尿,粪及胆汁中的SIPI及代谢物。色谱柱为Diamonsil C18柱;流动相为甲醇-水-甲酸(40∶60∶0.5),流速为0.5mL·min-1;质谱仪离子源为电喷雾离子源(ESI),正离子方式检测。代谢物经LC-MSn方法分离和分析,通过质谱和色谱行为推测其结构。结果在大鼠尿样中共检测到8种代谢物,在大鼠粪样中共检测到4种代谢物,在大鼠胆汁样品中共检测到3种代谢物。结论SIPI在大鼠体内广泛代谢,形成多种代谢产物。  相似文献   

17.
Objective: To identify the in vivo metabolites of icaritin and speculate its metabolic profiling in rats.Methods: The plasma, bile, urine, and feces of rats were collected after orally administration of icaritin at a dose of 100 mg/kg and detected by an ultra-high performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry(UPLC/Q-TOF-MS/MS) in both positive and negative modes.The data of treated and control groups were compared and analyzed with the aid of Metabolynx XS software.Results: A total of 25 metabolites were identified in the biosamples, and 14 of them were reported for the first time to our knowledge.Conclusion: The main metabolite types of icaritin in rats were glucuronide conjugation, methylation, hydroxylation, reduction, and acetylation.  相似文献   

18.
目的 建立一种具有高灵敏度和高选择性测定大鼠血浆中奥拉帕利药物浓度的超高效液相色谱-串联质谱(UPLC-MS/MS)检测方法,并研究奥拉帕利在大鼠体内的药动学特征。方法 大鼠血浆样品采用乙腈沉淀法去除蛋白,色谱柱为Acquity UPLC BEH C18柱 (2.1 mm×50 mm,1.7 μm),流动相为0.1%甲酸水溶液-乙腈,梯度洗脱。质谱采用电喷雾离子源,多反应监测正离子模式,奥拉帕利定量离子对为m/z 435.19→m/z 367.1。以50 mg·kg-1奥拉帕利经大鼠灌胃给药后于不同时间点采集血样,利用建立的方法进行检测分析,并用DAS2.0软件计算药动学参数。结果 血浆中奥拉帕利在(0.6~1 821) ng·mL-1内线性关系良好,定量限为0.15 ng·mL-1,日内、日间精密度RSD均小于5.5%,准确度在95.4%~99.2%内,平均提取回收率为84.2%~96.0%,基质效应在91.4%~108.8%内。结论 建立的方法灵敏度高、结果准确,可用于大鼠血浆中奥拉帕利质量浓度的测定及其药动学研究。  相似文献   

19.
??OBJECTIVE To identify the metabolites of Cuscuta chinensis in the serum and feces of rats with estrogenic estrogen, and to provide the basis for elucidating the pharmacological basis of its efficacy. METHODS Using the HPLC-ESI-MS/MS technique, the molecular weight and molecular formula of the compounds were preliminarily estimated by the first-order mass spectrometry, and the chemical constituents of serum and feces were characterized by the retention time of the standard, the fragment ion information, the fragmentation law of mass spectrometry and the reference data. RESULTS Five prototypic components and 4 metabolites were identified in the serum. A total of 11 chemical constituents were identified in the feces after administration, including 5 prototype components and 6 metabolites. CONCLUSION Through the comparative analysis between serum and feces, the main metabolic pathways of Cuscuta chinensis compound are deduced, which provides reference for the basic research on the estrogenic substance of Cuscuta chinensis.  相似文献   

20.
??OBJECTIVE To establish a quantitative analysis of multi-components by single-marker (QAMS) method for simultaneous determination of senkyunolide H, senkyunolide I, senkyunolide A, ligustilide, oxypaeoniflorin, albiflorin, paeoniflorin, benzoylpaeoniflorin and ??-cyperone in Renshen N??jin pills, in order to provide basis for studying its quality standards.METHODS The analysis of the methanol extract of Renshen N??jin pills was performed on Agilent Zorbax SB C18 column (4.6 mm??250 mm,5 ??m), with mobile phase composed of methanol-acetonitrile (2??1)-0.1% phosphoric acid solution at a flow rate of 0.9 mL??min-1 in gradient elution mode. The column temperature was maintained at 30 ??, and the detection wavelengths were set at 280, 230 and 242 nm. Paeoniflorin was selected as the internal standard, and the relative correlation factors (RCF) of senkyunolide H, senkyunolide I, senkyunolide A, ligustilide, oxypaeoniflorin, albiflorin, paeoniflorin, benzoylpaeoniflorin and ??-cyperone were determined by HPLC. The accuracy and feasibility of the method were validated by comparing the results of QAMS method and external standard method.RESULTS The standard curves of senkyunolide H, senkyunolide I, senkyunolide A, ligustilide, oxypaeoniflorin, albiflorin, paeoniflorin, benzoylpaeoniflorin and ??-cyperone had good linear relationship in the ranges of the tested concentrations. The precision, stability and repeatability complied with the requirements of methodology. The recoveries were 97.38%, 98.16%, 98.84%, 99.63%, 97.04%, 99.14%, 100.04%, 96.93% and 98.48%, RSDs were 1.38%, 1.18%, 0.97%, 0.86%, 1.68%, 1.30%, 0.57%, 1.32% and 1.19%, respectively. No significant differences were observed in the determination results by QAMS method and external standard method.CONCLUSION The QAMS method can be used for the content determination and quality control of the nine components in Renshen N??jin pills.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号