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 296 毫秒
1.
伍沛真 《海南医学》1998,(4):292-293
用正丁醇提取,薄层扫描法测定芍黄片中芍药甙的含量,薄层条件为含0.5CMC-Na和硅胶GF254的薄层板,氯仿-甲醇-醋酸乙酯(8:3:1)为展开剂,扫描测定λs=215nm,λR=290nm,平均回收率为100.25%,RSD为2.27%。  相似文献   

2.
薄层光密度扫描法定量测定麦迪霉素两种组分   总被引:2,自引:0,他引:2  
研究了麦迪霉素中两种主要成分的薄层光密度测定方法。选用0.3mol/LNaOH的0.75%CMC-Na溶液调和制板,以90%甲醇-乙酸乙酯-环己烷(10:45:45)为展开剂,用CS-930薄层扫描仪对样品进行了定量分析。麦迪霉素两种主要成分SF-837和LeucomycinA6的回收率分别为100.5%和99.7%(n=6),RSD分别为2.3%和1.9%。  相似文献   

3.
用双波长薄层扫描法测定优力藤片(YOLITEN)中雷藤素甲(triptolide)的含量。采用硅胶G-CMCNa薄板,样品经氧化铝吸附、氯仿回流提取、浓缩后点样。展开剂为乙酸乙酯-氯仿(1.3:2.0),用岛津CS-9000型扫描仪λ_s=510nm,λ_R=610nm波长处扫描。随行外标两点法计算含量。线性范围为0.1231~0.7386μg,回归方程A=61803.26C+5576.85,r=0.9998。回收率为104.1%,RSD=2.73%(n=6)。  相似文献   

4.
应用PCR/SSP基因分型方法鉴定HLA-DRB1与北京地区胰岛素依赖型糖尿病的关系。证明IDDM的DR9频率较对照人群明显升高(30.3%vs17.92%,x2=6.97,P<0.01);而DR3在IDDM中虽有升高,但无统计学意义(7.0%vs2.36% x2=3.19,P>0.05);糖尿病患者DR2频率明显降低(7.4%vs19.8%,x2=9.67,P<0.01)。上述结果表明DR9、DR3与IDDM易感呈正相关,而DR2与IDDM抗性相关。  相似文献   

5.
用薄层色谱法测定骨康片中士的宁和马钱子碱含量   总被引:1,自引:0,他引:1  
目的 建立骨康片中士的宁和马钱子碱的含量测定方法。方法 采用双波长薄层扫描法,硅胶GF254薄层板,展开剂为甲苯-丙酮-乙醇-浓氨试液(4:3:1:2),检测波长,士的宁λs=258nm,λR=310nm;马钱子碱λS=301nm,λR=335nm。结果 士的宁和马钱子碱的相关系数分别为0.9996和0.9999,方法的回收率分别为99.83%(RSD=1.03%)和96.09%(RSD=2.01  相似文献   

6.
建立了复方布洛芬片的双波长薄层扫描测定方法,研究了薄层色谱条件、薄层散射作用及扫描条件对薄层色谱扫描的影响。采用硅胶GF254-0.75%CMC-Na薄层板,以乙酸乙酯-甲醇-氨水(75:15:10)为展开剂,用岛津CS-9000型薄层扫描仪,双波长反射法锯齿扫描,以随行外标二点法定量对样品进行了分析,布洛芬和伪麻黄碱的回收率分别为100.2%和101.9%,RSD〈3.3%(n=5),三个批号的  相似文献   

7.
采用HPLC法,对18种杨属植物树中酚甙类成分含量进行了测定。所建立的方法「采用Shim-packODS柱,以甲醇(A)和水-四氢呋喃(99:1)(B)为流动相」确实可靠,具良好的线性关系,精密度RSD〈2%,加样回收率salireposide为99.2%,RSD=1.77%,davidianin为98.6%,RSD=3.01%,grandidentatin为102.1%,RSD=0.91%。SG  相似文献   

8.
用反相高效液相色谱法测定了长效异乐定胶囊中5-单硝酸异山梨酯的含量。色谱柱为YWG-ODS C18(250mm×4.6mmI.D,5μm);流动相为甲醇-水(1:1);检测波长为230nm。本法测定平均回收率为99.29%,RSD=0.24%;日内精密度RSD为0.32%;日间精密度RSD为0.92%。与比色法比较,本法测定结果准确可靠。  相似文献   

9.
检测30例慢性肾功能衰竭(CRF)患者血清可溶性白介素2受体(SIL-2R)和外周血T淋巴细胞亚群,结果表明:CRF患者SIL-2R水平显著高于正常对照组(P<0.01),CD3、CD4、CD4/CD8显著低于正常对照组(P<0.01);SIL-2R水平与CD3、CD4呈负相关,与CD8呈正相关;SIL-2R与BUN、SCr呈正相关,CD3、CD4与BUN、SCr呈负相关,CD8与BUN、SCr呈正相关。提示:CRF患者细胞免疫功能低下;SIL-2R水平与T淋巴细胞亚群变化有一定关系;SIL-2R水平与T淋巴细胞亚群变化可作为肾功能恶化的指标。  相似文献   

10.
为同时测定人血浆中肾上腺素和去甲肾上腺素浓度,建立了高效液相色谱-电化学检测方法,采用YWG-C18分析柱,3,4-二羟基苄胺作内标,以0.05m ol/L醋酸盐缓冲液(pH3.0)-甲醇-0.05m ol/LEDTA-Na2(78∶20∶2)为流动相,每1L流动相含SDS200m g,流速为1.0 m l/m in。去甲肾上腺素和肾上腺素及内标的保留时间分别为7.3、8.3 和10.4 分钟,线性范围均为31.25~4000ng/L(NE:r= 0.9999,E:r= 0.9996)。去甲肾上腺素和肾上腺素日内RSD分别低于1.87% 和2.07% ,日间RSD分别小于8.92% 和9.65% ,平均萃取回收率分别为93.5% 和91.3% 。提示本方法快速简便,灵敏准确,适用于嗜铬细胞瘤的鉴别诊断和临床研究。  相似文献   

11.
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   

12.
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   

13.
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   

14.
Shock wave lithotripsy (SWL) is a treatment of choice for upper urinary stones. However, this procedure is inappropriate for obese patients because the focus is often unable to reach the target owing to the limited focal distance in shock wave source. Although treating such patients in a blast path may increase the application length of shock wave source, it's difficult to find this path on the lithotripter monitor. For this reason, we invented an adjustable calibration marker in order to set an effective focus in the shock wave hath.  相似文献   

15.
Excess production of reactive oxygen species(ROS)of mitochondrion mediated by hyperglycemia is the common pathogenesis of angiopathic complications of diabetes.TCM holds that the damp from the dysfunction of spleen.kidney and liver is the causative factor of complications of diabetes.This is similar to the mechanism of Ros resulting in angiopathic complications of diabetes.When the angiopathic complications of type II diabetes mellitus(T2DM)are difierentiated as caused by turbid damp in TCM can be explained as ROS.Since the obstruction of pathogenic damp in channels and collaterals is said to be the main pathogenesis,the treating principle should be dissolving the damp to remove the obstruction.  相似文献   

16.
INTRODUCTION Obesity is a complex emergent problem, which can be possibly solved not only by the diet but also by the life style and promotion of a constant physical exercise. 1, 2 No doubt careful attentions must be given to the nutritional condition of obese people, the dietary habits, the somatic build (i.e. distribution of fat mass) and the organic functions linked to formation of the fat mass. All the parameters should be constantly monitored before, during and after a diet treatment. 3, 4, 5  相似文献   

17.
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   

18.
People with dysglycemia are at high risk for atherosclerotic diseases. This study aims at investigating the atherosclerotic vascular damage in dysglycemia and its metabolic origin in Tibetan population.  相似文献   

19.
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   

20.
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   

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