分光光度法,紫外线

分光光度法,紫外线的相关文献在1999年到2018年内共计108篇,主要集中在药学、中国医学、临床医学 等领域,其中期刊论文108篇、专利文献169898篇;相关期刊30种,包括国际生物制品学杂志、中国新药与临床杂志、中国药物与临床等; 分光光度法,紫外线的相关文献由351位作者贡献,包括丁红、林励、李卫民等。

分光光度法,紫外线—发文量

期刊论文>

论文:108 占比:0.06%

专利文献>

论文:169898 占比:99.94%

总计:170006篇

分光光度法,紫外线—发文趋势图

分光光度法,紫外线

-研究学者

  • 丁红
  • 林励
  • 李卫民
  • 白小红
  • 丁里玉
  • 全红
  • 区计明
  • 印杰
  • 孙成宏
  • 季宇飞
  • 期刊论文
  • 专利文献

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    • 李娜; 兰海英; 石乔; 康乐; 陈宏超; 徐梅
    • 摘要: 目的 建立一种丝氨酸蛋白酶抑制剂活性测定方法.方法 采用温控紫外分光光度计同时测定2种丝氨酸蛋白酶抑制剂,重组Textilinin-1(recombinant Textilinin-1,Rtxln-1)与抑肽酶(aprotinin,AP)的抑制常数.优化活性测定方法的线性范围和孵育温度.应用此方法对Rtxln-1和AP进行活性测定,并对活性测定方法进行验证.结果 该方法的标准曲线拟合度决定系数≥0.98,测定Rtxln-1和AP的线性范围分别为10~50、0.056~0.560 nmol/L.Rtxln-1孵育温度为37°C,精密度的变异系数≤5%.结论 建立的丝氨酸蛋白酶抑制剂活性测定方法特异性高、拟合度优,对Rtxln-1活性测定的精密度好,可用于AP、Rtxln-1等胰蛋白酶抑制剂的生物学活性的测定,也可用于广泛的丝氨酸蛋白酶抑制剂的活性测定.%Objective To establish a determination method for serine protease inhibitor activity.Methods The inhibition constants of 2 serine protease inhibitors,recombinant Textilinin-1 (Rtxln-1) and aprotinin (AP),were determined at the same time using temperature-controlled ultraviolet spectrophotometer.The linear range and incubation temperature were optimized.The method was used to determine Rtxln-1 and AP activities,and was verified in Rtxln-1 activity determination.Results The standard curves of both inhibitors had fitting coefficient of determination ≥0.98.The linear range was 10-50 nmol/L for Rtxln-1 and 0.056-0.560 nmol/L for AP.The optimal incubation temperature for Rtxlin-1 was 37 °C,and coefficients of variation in all precision tests were ≤5%.Conclusions The established method has high specificity,optimal curve fitting,good precision for Rtxln-1 activity determination.The method can be used for assessment of activity for trypsin inhibitors such as Rtxln-1 and AP,and for determination of general serine protease inhibitor activity.
    • 冷毅伦; 刘建莉; 徐佳奇; 马佳凤; 曾如梦; 林恒秀
    • 摘要: A comparative research is conducted on the performance of various methods of hemolysis test for drugs nowadays.It is classificated by the destruction of erythrocyte or the release of erythrocyte cell content.It is found that the substitutions of a dry chemistry method for cyanmethemoglobin and 4-amino antipyrine method for o-methyl benzidine method can be more accuracy and higher performance for hemolysis test.This review will provide references for the biocompatibility of drugs.%对现阶段多种药物溶血实验方法进行了对比研究,并依据红细胞破坏量、红细胞内容物释放等进行分类,发现干化学法替代氰化高铁法、4-氨基安替比林法替代甲联苯胺法等进行溶血试验可提高结果的精确度,更加便利和高效.由此,为药物生物安全性评价提供参考方法和依据.
    • 周贤霞; 黄家宇; 刘兰; 许超飞; 李莉; 郭雨柔; 龙飞燕
    • 摘要: 目的:优化赤胫散中鞣质的提取工艺,建立赤胫散中总鞣质含量测定的方法.方法:采用磷钼钨酸-干酪素紫外分光光度法测定赤胫散中总鞣质含量,以提取物中总鞣质含量为评价指标,以碳酸钠浓度、提取时间和提取溶剂作为考察因素,采用正交设计法筛选赤胫散的提取工艺条件.结果:赤胫散中鞣质的线性范围为1 ~ 10 mg/L,相关系数为0.999 5,回收率(n=6)为99.06%(RSD=1.04).结论:本方法简单、准确,可用于赤胫散中总鞣质含量的测定.%Objective:To optimize extraction process of total tannin in Polygonum runcinatum,and to establish stable determination method of total tannin content in Polygonum runcinatum.Method:Content of total tannin was detected by phosphomolybdic acid-casein UV spectrophotometry method with the content of total tannin as evaluation index,the sodium carbonate concentration,extraction (ultrasound) time and extraction solvent as investigation factors,extraction process was optimized by orthogonal design method.Result:The linear range of tannin in Polygonum runcinatum was 1 ~ 10 mg/L,the correlation coefficient was 0.999 5,and the recovery rate was 99.06% (n =6,RSD =1.04).Conclusion:The method is simple and accurate,and can be used to determine tannin content in Polygonum runcinatum.
    • 李占辉; 马玉倩; 何亚丽; 陈国明; 刘静; 闫春
    • 摘要: Objective To modify pharmacopoeia method (O-acetyl group assay) for quantitative detection of O-acetyl group content in typhoid Vi polysaccharide vaccine using low concentration control,and validate the feasibility of the modified method.Methods The standard curve of the modified method was established using control solution containing 0.05,0.10,0.20,0.30,0.40,0.50 μmol of acetylcholine bromide,and the standard curve linearity,accuracy,precision,specificity and durability of the modified method were validated.Results The standard curve linearity was good,with coefficient of determination > 0.998.The accuracy,precision and specificity were all good,the recoveries of O-acetyl group were 99.8%-101.3%,the relative standard deviations of intra-and inter-assay were both < 4%,and the recoveries of added O-acetyl group were all > 96%.The limit of quantitation of O-acetyl group was 0.070 mmol/L.Conclusion The modified method using low concentration control can be used for quantitative detection of O-acetyl group content in typhoid Vi polysaccharide vaccine.%目的 通过应用低浓度对照品,对定量伤寒Vi多糖疫苗O-乙酰基含量的药典方法(O-乙酰基测定法)进行改良,并验证该法的可行性.方法 以含0.05、0.10、0.20、0.30、0.40、0.50 μmol溴化乙酰胆碱的对照品溶液制作改良O-乙酰基测定法的标准曲线,并对该法的标准曲线线性、准确度、精密度、专属性和耐用性进行验证.结果 改良O-乙酰基测定法的标准曲线线性良好,决定系数>0.998.该法的准确度、精密度和专属性良好,O-乙酰基回收率为99.8%~101.3%,实验间和实验内相对标准偏差均<4%,O-乙酰基加样回收率均>96%.该法测定O-乙酰基的定量限为0.070 mmol/L.结论 应用低浓度对照品的改良O-乙酰基测定法可用于定量伤寒Vi多糖疫苗O-乙酰基含量.
    • 张传兰; 徐全华; 马伟平
    • 摘要: 目的:研究活性炭对注射用丁二磺酸腺苷蛋氨酸含量及澄清度与颜色的影响,为该制剂工艺研究中活性炭用量的选择提供科学依据。方法采用高效液相色谱法测定丁二磺酸腺苷蛋氨酸含量和紫外-可见分光光度法测定澄清度与颜色。结果随着活性炭用量的增加,药物的含量降低;当活性炭用量为0.05%时,溶液的澄清度与颜色有轻微的改善,但随着活性炭用量的增加,溶液的澄清度逐渐降低,颜色加深。结论注射用丁二磺酸腺苷蛋氨酸的活性炭适宜用量为0.05%,过量的活性炭加入可直接影响药品的质量。%Objective Tostudythe effect of activated carbon on the content,clarity and color of Ademetionine 1,4-Butanedisulfonate-forInjectionin order toprovidescientific basis for the selection of concentration of activated carbon.Methods HPLC was adopted to measure the content of Ademetionine 1,4-Butanedisulfonate.Ultraviolet-visible spectrophotometry was used for the examination of its clarity and color.Results The content of active ingredientwas reduced with the increase inconcentration of activated carbon.The clarity and color of the solution was slightly improved when the concentration of activated carbon was 0.05%,but the clarity became turbidand the color was deepenedwith the increase inconcentration of activated carbon.Conclusions The suitable concentration of activated car-bon for Ademetionine 1,4-Butanedisulfonate for Injection was 0.05%,and excessive use of activated carbon may affect the pharmaceu-tical preparation’s quality directly.
    • 罗森; 袁崇均; 陈帅; 王笳
    • 摘要: 目的 建立川射干须根中总黄酮含量测定的方法.方法 采用紫外分光光度法测定川射干须根中的总黄酮含量,以射干苷为对照品,测定波长为266 nm.结果 射干苷在0.8244~9.0684μg/mL时与吸光度呈良好的线性关系(r=0.9998);平均回收率为100.45%,相对标准偏差为1.15%;川射干须根中总黄酮的平均含量为1.03%.结论 紫外分光光度法操作简便、灵敏、准确,具有良好的重复性和较高的回收率,可作为川射干须根的总黄酮含量测定方法.
    • 魏东; 尤明强; 裴明玉; 庄新海; 翟雷; 魏然; 王国治; 李恪梅
    • 摘要: Objective To establish a universal national reference materials for determining the concentrations of plague, brucellosis and anthrax vaccine. Methods Firstly, absorbance of universal national reference materials were established. Secondly, correlation between absorbance of universal national reference materials and concentrations ofthreekinds of vaccine was studied using respective national reference material. The universal references were prepared. The stability of the references was tested by measuring absorbance. Finally, the universal reference materials were compared with old reference materials by three professional laboratories. Results Absorbance of universal national reference materials were 0.350, 0.494 and 0.665. The relationship between absorbance of universal national reference materials and the concentrations ofthreekinds of vaccine was determined. Reference materials were successfully established. The reference materials stored at 4°C were stable. By measuring three batches of each vaccine with two kinds of reference materials, the result errors were less than 2.0%. Conclusion A set of universal national reference materials for determining the concentrations of plague, brucellosis and anthrax vaccine is established.%目的将现用鼠疫、布氏菌、炭疽活疫苗3套浓度测定参考品整合成一套通用参考品。  方法确定通用参考品吸光度值,从3套鼠疫、布氏菌及炭疽疫苗浓度测定用参考品共9个浓度中选取代表性3个浓度参考品;利用现用3种活疫苗浓度测定用参考品的线性方程,计算通用参考品所代表各种疫苗的浓度;制备参考品并进行质量控制;观察参考品的长期稳定性;组织3个实验室进行协作验证。  结果确定通用参考品吸光度值为0.350、0.494、0.665;确定通用参考品所代表各种疫苗浓度;完成通用参考品的制备,各项检定符合规定;对4°C冷藏保存参考品进行稳定性研究,变异系数小于2.0%;经3个实验室协作验证,各实验室使用2种参考品的测定结果误差均小于2.0%。  结论在现有参考品的基础上整合成一套鼠疫、布氏菌、炭疽活疫苗分光光度法浓度测定通用参考品,并为以后建立分光光度法细菌浓度测定通用参考品奠定基础。
    • 王晶; 蒋慧; 潘贵书
    • 摘要: 目的:对贵州省某食用白酒微量成分及香气进行分析.方法:采用紫外分光光度法、火焰原子吸收分光光度法、高效液相色谱法、GC/MS(气质谱联用仪)测定该白酒中维生素、金属元素、氨基酸和酸类酯类的含量.结果:该白酒中至少含有8种维生素,9种金属元素,7种主要氨基酸和100多种酯类酸类等微量成分,其中维生素B12、维生素E、钙、谷氨酸、苯丙氨酸、丁酸、己酸、乳酸的含量较为丰富.结论:该白酒中含有丰富的维生素、金属元素、氨基酸和酯类酸类.
    • 陈丽萍; 刘雄; 夏鹏飞; 樊秦; 赵磊
    • 摘要: Objective To optimize the detection condition of coloration method with phenol- sulphuric acid for polysaccharide in Angelica Sinensis. Methods The glucose content of reference substance was used as a parameter, and the coloration method with phenol-sulphuric acid was used to detect the best coloration method with 483 nm wave length and optimized with the L9 (34 ) orthogonal design. Results The concentrated sulfuric acid and phenol volumes had signifi-cant effects on detecting polysaccharide content. The best coloration method for polysaccharide was 1. 5 ml phenol, 7 ml concentrated sulfuric acid, 100°C reactive temperature, 10 min reactive time, 0. 005-0. 02 mg/mL linear range, 101. 33%average recovery and 1. 22% RSD (relative standard deviation). Conclusion The phenolsulphuric is rapid, simple and accurate with good repeatability, and can been applied in content detection of polysaccharide in Angelica Sinensis.%目的 优化当归多糖苯酚-硫酸显色法的测定条件. 方法 采用苯酚-硫酸显色法,以对照品葡萄糖的含量为考察指标,检测波长为483 nm,按L9 (34 )正交试验设计筛选最佳显色条件. 结果 浓硫酸和苯酚用量对多糖含量测定的影响较显著,优选出的多糖最佳显色条件为苯酚1. 5 ml、浓硫酸7 ml、反应温度100°C、反应时间为10 min,线性范围为0. 005~0. 02 mg/ml,平均回收率为101. 3%,相对标准偏差为1. 22%. 结论 苯酚硫酸法快速、简便,准确性高、重复性好,可适用于当归多糖的含量测定.
    • 陈丽萍1; 刘雄2; 夏鹏飞2; 樊秦2; 赵磊2
    • 摘要: 目的优化当归多糖苯酚-硫酸显色法的测定条件。方法采用苯酚-硫酸显色法,以对照品葡萄糖的含量为考察指标,检测波长为483 nm,按L9(34)正交试验设计筛选最佳显色条件。结果浓硫酸和苯酚用量对多糖含量测定的影响较显著,优选出的多糖最佳显色条件为苯酚1.5 ml、浓硫酸7 ml、反应温度100°C、反应时间为10 min,线性范围为0.005~0.02 mg/ml,平均回收率为101.3%,相对标准偏差为1.22%。结论苯酚硫酸法快速、简便,准确性高、重复性好,可适用于当归多糖的含量测定。
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