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1.
金钱草化学成分的分析(Ⅰ)   总被引:1,自引:0,他引:1  
报道了用水蒸汽蒸馏-萃取法提取金钱草中挥发性物质,测得金钱草挥发油的含量为1.45%;用GC/MS法从金钱草挥发油中,分离并确定出22种化学成分;用峰面积归一化法通过化学工作站数据处理系统,得出各化学成分在挥发油中的相对百分含量,其中主要成分为α-蒎烯(19.6 %)、樟脑(5.07%)、乙酸冰片酯(3.53%)、石竹烯氧化物(7.82%)、桉油烯醇(2.26%)、山奈素(3.67%)、山奈酚(6.22%)等.  相似文献   

2.
水黄瓜营养成分的研究   总被引:1,自引:0,他引:1  
采用索氏提取法对水黄瓜中脂肪酸进行了提取,以气相色谱-质谱联用仪进行了分析,分离鉴定出11种脂肪酸,并对其主要成分进行了鉴定,主要化学成分为:9,12-十八碳二烯酸和9,12,15-十八碳三烯酸.用同时蒸馏-萃取法提取水黄瓜中挥发性物质,测得水黄瓜挥发油的含量为1.0%,用GC/MS法从水黄瓜挥发油中分离并确定出24种化学成分.用峰面积归一化法通过化学工作站数据处理系统,得出各化学成分在挥发油中的相对百分含量.  相似文献   

3.
毛细管气相色谱质谱法分析茉莉花中挥发性化学成分   总被引:3,自引:0,他引:3  
报道了用同时蒸馏萃取装置(SDE)提取茉莉花的挥发性物质,测得茉莉花挥发油含量为5.35%,用毛细管气相色谱质谱法从茉莉花的挥发油中分离确认出48种化学成分.用峰面积归一化法通过化学工作站数据处理系统得出各化学成分在挥发油中的百分含量,测得其占总检出量的98.38%..  相似文献   

4.
环棱褐孔菌挥发性化学成分的分析   总被引:1,自引:0,他引:1  
报道了用同时蒸馏-萃取装置提取环棱褐孔菌的挥发性物质,测得环棱褐孔菌挥发油的含量为5.06%,用GC/MS法从环棱褐孔菌挥发油中分离并确定出21种化学成分.用峰面积归一化法通过化学工作站数据处理系统,得出各化学成分在挥发油中的相对百分含量.  相似文献   

5.
采用索氏提取法对稻秆中脂肪油进行提取,以气相色谱-质谱联用仪进行了分析,分离鉴定出9种脂肪酸,占脂肪油总量的92.64%,并对其主要成分进行了鉴定,主要化学成分为:棕榈酸21.00%、油酸29.30%、亚油酸22.89%和α-亚麻酸14.77%.用水蒸汽蒸馏-萃取法提取稻秆挥发性物质,测得稻秆挥发油的含量为0.80%,用GC/MS法从稻秆挥发油中分离并确定出30种化学成分.用峰面积归一化法通过化学工作站数据处理系统,得出各化学成分在挥发油中的相对百分含量,其中主要成分为:2-戊基呋喃(14.98%),甘菊环(17.42%),壬醛(7.06%),辛醛(3.54%),2-癸烯醛(4.02%),1-己醇(3.38%)等.  相似文献   

6.
千山侧柏叶挥发性化学成分分析   总被引:7,自引:0,他引:7  
报道了用水蒸气蒸馏-萃取法提取千山侧柏叶中挥发性物质,测得提取的千山侧柏叶挥发油含量为2.0%。用GC/MS法从千山侧柏叶挥发油中分离并确定出30种化学成分,占总挥发油总检出量的98.67%.用峰面积归—化法通过化学工作站数据处理系统,得出各化学成分在挥发油中的相对百分含量.  相似文献   

7.
中药苦豆子挥发油成分的研究   总被引:4,自引:0,他引:4  
对青海地区苦豆子全草中挥发油组分进行了提取、分析和鉴定,测得苦豆子全草挥发油含量为1.9%,并用GC/MS法从其挥发油中分离确认出20种化合物,用峰面积归一法通过G1701BA化学工作站数据处理系统得出各化学成分在挥发油中的百分含量为65.92%。  相似文献   

8.
报道了对辽宁五个地区的油松松针挥发性成分进行的分析和鉴定 .测得鞍山、沈阳、铁岭、锦州和朝阳等地松针中挥发油的含量分别为 1.7%、1.7%、1.4 %、1.7%、1.4 % .用GC/MS法从这 5个地区的松针挥发油中分别分离出 55种、54种、56种、54种和 56种挥发性成分 ,共确定出 52种化合物 ;并用峰面积归一化法 ,通过HP59970C化学工作站数据处理系统测得各化学成分在挥发油中的百分含量 .分析结果表明 ,不同地区的松树松针挥发油的成分有很多相同的成分 ,但也有明显的差异 ,其百分含量也不尽相同 .  相似文献   

9.
黄花败酱草挥发性化学成分分析   总被引:2,自引:0,他引:2  
用水蒸气蒸馏法提取黄花败酱草挥发油,并用气相色谱-质谱联用仪对黄花败酱草挥发油的化学成分进行了分离和鉴定.分离并鉴定出28个组分,占峰面积的97.21%,并用峰面积归一化法测定了各成分的质量分数;其主要挥发性成分为呋喃类化合物、酸类化合物和醇类化合物.  相似文献   

10.
采用水蒸汽蒸馏法从没药中提取挥发油,利用气相色谱-质谱(GC-MS)联用技术对其化学成分进行了分析.从中分离并鉴定出41种化学成分,用峰面积归一化法通过数据处理系统得出各化学成分在挥发油中的百分含量,占挥发油总成分的67.95%.  相似文献   

11.
两种方法提取生姜中挥发性化学成分的研究   总被引:1,自引:1,他引:0  
报道了用水蒸汽蒸馏萃取法和同时蒸馏萃取法提取姜科植物生姜中的挥发性物质,并用气相色谱-质谱联用仪对其挥发性化学成分进行分析,分别分离并确定出28种和22种化学成分,分别占总挥发油总检出量的98.24%和97.99%。结果表明:生姜挥发油的主要化学成分是萜类化合物β-水芹烯、茨烯、冰片、柠檬醛、姜烯等.  相似文献   

12.
目的:经过筛选处方和优化工艺,将乌索酸制成滴丸剂,同时考察其体外溶出度,评价其质量.方法:采用滴制法制备乌索酸滴丸.以滴丸的圆整度、重量差异及硬度等作为综合评定指标,优选出滴丸的最佳处方和成型工艺,采用RP-HPLC法测定含量.结果:筛选出了最佳的处方和成型工艺,合理可行,制备的乌索酸滴丸质量稳定,质控方法准确可靠.结论:制备的乌索酸滴丸外观性状好,丸重差异小,含量准确,溶出度得到了显著提高,75m in内乌索酸滴丸的体外溶出度比片剂提高232.8%,比乌索酸胶囊提高12.5%.  相似文献   

13.
冰片在中风及假手术大鼠体内的药代动力学研究(英文)   总被引:1,自引:0,他引:1  
Objective: This study was designed to investigate the pharmacokinetics of borneol in the pathological conditions of stroke and evaluate the pharmacokinetic differences of borneol caused by stroke after oral administration of borneol and Xingnaojing (XNJ). Methods: The rats were divided into two groups, ischemia-reperfusion (IR) and sham-operated (SO) rats. Each group contained two subgroups: pure borneol and XNJ subgroups. After administration with the same dosages of borneol 162.0 mg/kg, plasma samples were collected. The cerebral ischemia-reperfusion model was created by reversible middle cerebral artery occlusion (MCAO). The blood samples were collected punc- tually after oral administration and a specific gas chromatographic system-flame ionization detector (GC-FID) method was developed and employed to determine the level of borneol in the plasma. The pharmacokinetic parameters were analyzed using non-compartmental methods with Kinetica. Results: After administration of borneol, the maximum plasma concentration (Cmax) and area under the curve (AUC) values in stroke rats significantly increased by 302% and 275%, respectively, compared with the SO rats, and the same phenomenon appeared after administration of XNJ. In the rats with the same physiological conditions, the Cmax and AUC had higher values in the borneol subgroup (P〈0.05). Conclusions: These results suggest that the pathological damages of ischemia-reperfusion have a significant impact on the pharmacokinetic traits of borneol and that there are some components in XNJ inhibiting the absorption of borneol.  相似文献   

14.
Borneol, a monoterpenoid alcohol, is used widely, particularly in combined formulas for preventing and curing cardiovascular and cerebrovascular diseases in traditional Chinese medicine. In order to understand the blood and brain pharmacokinetics after intravenous, intranasal, or oral administration and to investigate the superiority and feasibility of intranasal administration, a simple gas chromatographic (GC) method with flame ionization detection (FID) was developed for the quantification of borneol. Blood samples and brain were collected from mice at 1, 3, 5, 10, 20, 30, 60, 90, and 120 min after intravenous, intranasal, or oral administration of borneol at a dosage of 30.0 mg/kg. Sample preparations were carried out by liquid-liquid extraction with an internal standard solution of octadecane. The pharmacokinetic parameters were calculated by the software of Kinetica. The calibration curves were linear in the range of 0.11–84.24 μg/ml and 0.16–63.18 μg/g for borneol in plasma and brain, respectively. The methodological and extraction recoveries were both in the range of 85%–115%. The intra-day and inter-day variabilities for plasma and brain samples were ≤5.00% relative standard deviation (RSD). The absolute bioavailabilities F of intranasal and oral administrations were 90.68% and 42.99%. The relative brain targeted coefficients Re of intranasal and oral administrations were 68.37% and 38.40%. The GC-FID method developed could be applied to determination and pharmacokinetic study. The borneol from injection was distributed and metabolized fast without absorption process. The borneol from oral administration was distributed more slowly and had the lowest absolute bioavailability. Nasal administration of borneol was quickly absorbed into the blood and brain, was easy to use and had a greater safety than infection, which makes it worthy of further development as an administration route for encephalopathy treatment.  相似文献   

15.
罗布麻叶挥发油的提取与气相色谱-质谱分析   总被引:2,自引:0,他引:2  
用同时蒸馏装置萃取了罗布麻叶中挥发油,测得提取率为1.51%.并采用气相色谱-质谱联用技术对罗布麻的挥发性成分进行了分离鉴定.分离出37种成分,占挥发油总含量的97.83%.采用峰面积归一化法确定了各成分的相对含量,其中主要成分为:双烯桉叶(17.10%),薄荷醇(7.03%),5,6,7,7a-四氢化4,4,7a-三甲基-2(4H)苯并呋喃(6.64%),三甲基-8-亚甲基-十氢化4-亚甲基萘醇(5.25%),氧化石竹烯(3.94%).  相似文献   

16.
建立用近红外漫反射光谱鉴别不同厂家六味地黄丸样品的新方法是该文目的。采集不同厂家、不同批号的六味地黄丸样品的近红外漫反射光谱,充分利用各制剂整体的差异,采用近红外漫反射结合判别分析法建立六味地黄丸的定性分析模型。所建模型能够对不同厂家的六味地黄丸样品进行分类鉴别,分类结果与实际所属一致。近红外光谱法简便、快速、不破坏样品,结合模式识别技术能够准确鉴别不同厂家的六味地黄丸,这对中药制剂的质量分析有一定的参考价值。  相似文献   

17.
Gas chromatography/mass spectrometry (GC-MS) of the essential oil from the aerial parts of Rabdosia lophanthoides resulted in the identification of 108 compounds representing 78.120% of the oil. Hydro-distillation of Rabdosia lophanthoides yielded a pale yellow oil. The compounds identified and their relative proportions are listed in Table 1 according to their order of elution on an HP-5MS capillary column. .  相似文献   

18.
观察冰片对血脑屏障(BBB)P-糖蛋白功能的影响。取NIH小鼠,随机分为冰片高、中、低剂量组,维拉帕米组和溶剂对照组。灌胃给药,每日2次,共7次。末次给药后,分别从尾静脉和脑室注射罗丹明123(Rho-123)。注射Rho-123后取血浆和脑组织,荧光分光光度法测定血浆及脑组织中Rho-123含量。结果表明:尾静脉注射Rho-123后,冰片对小鼠血浆Rho-123含量无明显影响;5,10,20和30min冰片高、中剂量组小鼠脑组织Rho-123浓度均显著高于溶剂对照组(P0.01)。脑室注射Rho-123后5,10,20和30 min,冰片高剂量组小鼠血浆Rho-123浓度均显著低于溶剂对照组(P0.05);20,30min冰片中剂量组小鼠血浆Rho-123浓度亦显著低于溶剂对照组(P0.05);1,5,10和20 min冰片高剂量组小鼠脑组织Rho-123浓度显著高于溶剂对照组(P0.01或P0.05);5,10 min冰片中剂量组小鼠脑组织Rho-123浓度亦显著高于溶剂对照组(P0.05)。说明冰片能抑制BBB P-gp功能。  相似文献   

19.
海参脂肪酸的气相色谱-质谱分析   总被引:2,自引:1,他引:1  
采用Bligh-Dyer提取法对海参中的脂肪油进行提取,并进行甲酯化处理,利用气相色谱-质谱联用仪进行分析测定.共检测出19种脂肪酸,不饱和脂肪酸为9种,相对百分含量占检出所有脂肪酸的71.24%.其中,二十碳五烯酸(EPA)为10.39%,二十二碳六烯酸(DHA)为2.61%,同时检出了15.二十四碳烯酸(NA),相对百分含量为4.14%.  相似文献   

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