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1.
反相高效液相色谱法测定沙棘油中维生素E的含量   总被引:9,自引:0,他引:9  
目的:采用反相高效液相色谱法测定沙棘油中维生素E的含量。方法:C18-ODS柱为色谱柱、甲醇-水(98:2)为流动相,流速为1.5ml/min,检测波长:280nm。结果:线性范围0.9-6.0μg(r=0.9998),平均回收率为99.17%,RSD为1.48%(n=5),结论:本法操作简便,准确可靠。  相似文献   

2.
柱前衍生化法测定糖脂消胶囊中黄芪甲苷含量   总被引:1,自引:1,他引:1  
【目的】采用柱前衍生化反相高效液相色谱法测定糖脂消胶囊黄芪甲苷(AT)的含量。【方法】经有机溶剂提取和大孔树脂分离的方法去除胶囊中主要的杂质后,采用苯甲酰氯对提取物进行衍生化,高效液相对衍生化产物进行含量测定。色谱柱为ODS柱,流动相为甲醇:水:三乙胺=85:15:0.5,检测波长230nm。【结果】AT峰面积与其进样量在0.2~2.0μg范围内呈良好的线性关系,回归方程为Y=19643X+8231,r=0.9991;最低检测限为5ng,平均回收率为94.2%(n=3,RSD=2.26%)。【结论】本法准确,具有较高的灵敏度,适用于糖脂消胶囊质量控制。  相似文献   

3.
目的:探讨脑蛋白水解物片中肽含量的测定方法。方法:采用盐酸水解多肽方法,利用WatersAccQ-Tag氨基酸衍生技术,使用Kromasil100-5C,8色谱柱(250.0mmX4.6mm,5μm)进行液相色谱分析,以乙酸钠(pH=5.00)缓冲液为流动相A,60%乙腈为流动相B进行梯度洗脱,检测波长为248nm,柱温为37℃,进样量为5肛l。水解后游离氨基酸总量扣除水解前氨基酸总量即为肽含量。结果:各氨基酸测定结果具有良好线性(r=-0.999 1-0.9999,n=5),未水解氨基酸平均回收率为100.6%(RSD为0.7%,n=9),肽含量平均回收率为100.4%(RSD为1。1%,n=9)。结论:本方法准确可行,可作为药品中肽含量测定的方法补充和完善。  相似文献   

4.
目的建立高效液相色谱法测定曲咪新乳膏中醋酸曲安奈德及硝酸咪康唑的含量。方法(1)采用C18色谱柱;以甲醇:水(75:25)为流动相;流速1.0mL/min;柱温为室温;检测波长为240nm测定醋酸曲安奈德的含量。(2)采用C18色谱柱;以乙腈:甲醇:0.5%的醋酸铵溶液(42.5:42.5:15)为流动相;流速1.0mL/min;柱温为室温;检测波长为230nm测定硝酸咪康唑的含量。结果醋酸曲安奈德在7.68~38.38μg/mL范围内线性关系良好(r=0.9996,n=5),平均回收率为99.8%(RSD=0.52%);硝酸咪康唑在85.10。425.52μg/mL范围内线性关系良好(r=0.9993,n=5),平均回收率为99.9%(RSD=0.81%)。结论反相高效液相色谱法测定曲咪新乳膏中醋酸曲安奈德及硝酸咪康唑的含量方法简便、灵敏、准确。  相似文献   

5.
反相高效液相色变法对蛇床子中蛇床子素含量的测定   总被引:1,自引:0,他引:1  
目的:建立反相高效液相色谱(RP-HPLC)法测定蛇床子药材中蛇床子素的含量的方法。方法:采用十八烷基硅烷键合硅胶柱Diamonsil(TM)钻石C18色谱柱,流动相为甲醇-水(75:25),检测波长325nm,结果:蛇床子素在0.288-1.440μg范围内具有良好的线性关系,r=0.9990;本法精密度高,RSD=0.43,重现性好,RSD=1.41;回收率为97.38%,RSD=1.11,结论:本方法可以精确测定蛇床子中蛇床子素的含量。  相似文献   

6.
目的建立反相高效液相色谱法测定美洛昔康胶囊中美洛昔康的含量。方法选用Waters C18色谱柱,以甲醇-0.2M醋酸铵为流动相,检测波长为362nm,流速0.8ml/min,柱温为室温。结果美洛昔康在0.1-200μg/ml范围内呈很好的线性关系,r=0.9999(n=5),平均回收率为99.2%,RSD为0.39%。结论该法简便、快速、灵敏度高、专属性好,结果准确、可靠,成功用于胶囊制剂中美洛昔康含量的测定。  相似文献   

7.
目的:建立高效液相色谱不测定经络舒胶囊中丹参酮ⅡA含量的方法。方法:采用LUNAC18色谱柱,柱温35℃。汉动相甲醇-水(85:15),流速0.8ml/min,检测波长270nm。结果;丹参酮ⅡA与其相邻峰完全分离,对照品线性范围1.608-14.472ug/ml,r=0.9997,平均回收率99.12%,RSD=1.995(n=5)。结论:用高效液相色谱法测定比各舒胶囊中丹参酮ⅡA含量,操作简便,结果准确。  相似文献   

8.
目的用高效液相色谱法测定氨咖黄敏胶囊(片)中对乙酰氨基酚、咖啡因2种有效成分的含量。方法:色谱柱为C18柱,检测波长为270nm,流动相为甲醇-水(25:75),流速1ml/min。结果:测得上述2种有效成分RSD(n=5)分别为0.4%、0.5%,平均回收率(n=3)分别为100.1%、100.5%。结论:本研究建立了一种快速、准确、灵敏的高效液相色谱法测定氨咖黄敏胶囊(片)中2种主要成分的方法,该法专属性强、操作简便、结果准确。  相似文献   

9.
目的:建立气相色谱法测定金凤搽剂中天然冰片的龙脑含量。方法:固定相为10%聚乙二醇(PEG)-20M,柱温为140℃,检测器为氢火焰离子发生器。水杨酸甲酯为内标物。结果:龙脑的加样回收率为100.3%,RSD为2.37%(n=5)。结论:应用气相色谱法测定金凤搽剂中天然冰片的龙脑含量,本法音次运用在金凤搽剂中,方法简便、准确、灵敏性高、重现性好。  相似文献   

10.
HPLC法测定消渴降糖胶囊中槲皮素的含量   总被引:1,自引:0,他引:1  
目的:用HPLC法测定消渴降糖胶囊中槲皮素的含量。方法:采用DiamonsillC18(5μm,200×4.6mm)色谱柱,流动相为甲醇-0.4%磷酸(53:47),检测波长:360nm。结果:槲皮素进样量在0.0880μg-0.7920μg范围内,与色谱峰面积呈良好线性关系,r=0.9997(n=5),平均回收率为98.61%,RSD为1.85%(n=5),精密度RSD为0.41%(n=5)。结论:HPLC法简便、灵敏、稳定,可用于槲皮素的含量测定。  相似文献   

11.
Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P < 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (>0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P <0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P < 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.  相似文献   

12.
Objective: To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods: SD rats served as both donors and recipients. 4℃ sodium lactate Ringer's was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava (IVC) inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results: Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion: This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.  相似文献   

13.
FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…  相似文献   

14.
Objective To observe blood pressure change with age in salt-sensitive teenagers whose salt sensitivity were determined by repeated testing.Methods Salt sensitivity was determined through intravenous infusion of normal saline combined with volume-depletion by oral diuretic furosemide in 55 teenagers. After five years, salt sensitivity was re-examined and subject blood pressure was followed up. Blood pressure changes in salt-sensitive teenagers were compared to that of non-salt sensitive teenagers over five years.Results After 5 years, the repetition rate of salt sensitivity determined by intravenous saline loading is 92.7%. In teenagers with salt sensitivity on the baseline, both the systolic blood pressure increments and increment rates were much higher than non-salt sensitive teenagers (12.7±12.1 mmHg vs. 2.8±5.2 mmHg, P< 0.01; 12.2%± 12.0% vs. 2.5% ±4.4%, P< 0.001,respectively). There was a similar trend for diastolic blood pressure (8.4 ± 6.4 mmHg vs. 3.7 ± 6.4 mmHg, P = 0.052; 13.2% ±10.6 % vs. 6.8%± 10.1%, P = 0.053, respectively).Conclusions Salt sensitivity determined by intravenous saline loading showed good reproducibility. Blood pressure increments with age were much higher in salt-sensitive teenagers than non-salt sensitive teenagers, especially in terms of systolic blood pressure.  相似文献   

15.
Objective: To observe the therapeutic effects in acupunture treatment of primary dysmenorrhea combined with spinal Tui Na, and study its mechanism. Methods: Thirty cases of the treatment group were treated by acupuncture combined with spinal Tui Na, and thirty cases in the control group were treated by routine acupuncture. Results: The total effective rate was 93.3% in the treatment group, and 73.3% in the control group, with a significant difference between the two groups (P<0.05). Conclusions: Acupuncture combined with spinal Tui Na has good prospects for treatment of primary dysmenorrhea.  相似文献   

16.
In treating chronic nephropathy,Luo Lingjie,a chief physician,pays attention to regulating the balance between yin and yang,treating infection if present,and removing pathogenic factors.He prescribes gentle drugs and uses carefully strongly warming-tonifying ones,emphasizes the importance of persuading the patient to persist in treatment with medication and nurse one's health for recuperation,and is good at combined use of TCM and western medicine therapy and brings the merits of various therapies into full play,with obvious theraoeutic effects.  相似文献   

17.
Dr.Zhang Ren,the chief physician,is the chairman of Shanghai Acupuncture and Moxibustion Association.Having been engaged in medicine for about 40 years,he is experienced in treating various intractable diseases.In his long years of clinical practice,he advocates taking the TCM differentiation as the basis to seek for the acupuncture method for treatment of modern intractable diseases.The author of this essay had the fortune to follow Dr.Zhang in study.The following is a summary of Dr.Zhang's experience in the acupuncture treatment for different intractable diseases with the same therapeutic principle.  相似文献   

18.
目的:评价使用安心颗粒对急诊经皮冠状动脉介入术(PPCI)术后生活质量的影响.方法:将160例接受PPCI的急性ST段抬高型心肌梗死患者随机分为安心颗粒组(术前顿服安心颗粒8.8g,术后安心颗粒4.4 g/次,每日2次)和对照组(仅接受基础药物治疗).所有患者均服用阿司匹林、氯吡格雷和阿托伐他汀.分别在入院时、出院前1d、出院后180 d时,应用心肌梗死多维度量表(MIDAS)、中文版SF-36评价量表对患者生活质量评分.并观察术后30 d以内的出血并发症、血小板减少症发生情况.结果:入院时和出院前1d,两组患者的心肌梗死MIDAS、SF-36量表评分比较无差异(P>0.05);出院后180 d时,与对照组比较,安心颗粒组MIDAS、SF-36评分明显减低(P<0.05);组内与入院时比较,两组出院前1d、出院后180 d时,MIDAS、SF-36评分均降低(P<0.05).两组患者在随访期间均无大量出血、少量出血、重度和极重度血小板减少症发生,安心颗粒组有4例、对照组有7例发生不明显出血(P>0.05).两组发生轻度血小板减少症的患者数比较无差异(P>0.05).结论:PPCI使用安心颗粒,能改善急性ST段抬高型心肌梗死患者的生活质量,且不增加出血风险.  相似文献   

19.
Objective:To investigate the influences of urapidil and nicardipine on rabbit sinus function,atrio-ventricular node function and hemodynamics.Methods:Thirty-two Angora's rabbits were selected and randomly divided into four groups.U1 group:urapidil 0.25 mg/kg;U2 group:urapidil 0.5 mg/kg;N1 group:nicardipine 10 μg/kg;N2 group:nicardipine 20 μg/kg.All these medicine were administrated within 30 seconds.Measurements were taken before and after the administration of urapidil or nicardipine for the following data:mean blood pressure(MAP),heart rate(HR),sino-atrial conduction time(SACT),maximal sinoatrial recovery time(SNRTmax)corrected sinus node recovery time(CSNRT),index of sinus node recovery time(SNRTI),Wenckebach A-V conduction frequency (WB),and P-R interval.Results:Significant MAP and HR changes were identified in all of the four groups before and after administration of both urapidil and nicardipine.No significant changes could be found in the rest of the parameters.Intergroup analysis showed that SACT and CSNRT of N1 and N2 groups were shorter than those of the U2 group(P<0.01);the MAP decreased(P<0.01)and the HR increased drastically(P<0.01).Conclusions:Neither urapidil(0.25 mg/kg,0.5 mg/kg)nor nicardipine(10μg/kg,20μg/kg)has any significant influence on rabbit sinus function or rabbit atrio-ventricular node function.Nicardipine could be a better choice than urapidil for parafunctional sinus node patients.  相似文献   

20.
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