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1.
原子吸收光谱法在药物分析中的应用及进展   总被引:7,自引:0,他引:7  
评述了原子吸收光谱法在药物分析领域中的应用及进展,内容包括测定药物时所利用的各种类型的化学反应。引用文献91篇。  相似文献   

2.
共振瑞利散射(RRS)是近年来发展起来的一种灵敏度高和操作简单的光谱分析技术。高效液相色谱—共振瑞利散射(HPLC-RRS)联用技术是以高效液相色谱为分离手段,以共振瑞利散射为鉴定工具的一种分离分析技术。本文综述了国内近年来高效液相色谱—共振瑞利散射联用技术在抗生素类药物分析中的应用,并对该方法今后的发展进行展望。  相似文献   

3.
综述了质谱及其联用技术(如气相色谱-质谱,液相色谱-质谱,毛细管电泳-质谱等)在抗癌药物的分离鉴定、药物代谢产物的研究及药物作用机理方面的应用,总结了其发展潜力。  相似文献   

4.
童国忠 《分析化学》2006,34(9):1302-1302
本书是集红外光谱、气相色谱等大型仪器分析技术和涂料分析技术相结合的实用型技术书籍。全书共分17章,分别介绍了气相色谱、色谱质谱联用、裂解色谱、凝胶色谱、液相色谱、红外光谱、紫外可见光谱、原子吸收光谱、X射线荧光及衍射光谱、数码摄像光学显微镜、电子及原子力显微镜、热分析以及其他精密测试仪器的基本原理、测试方法,并列举了大量涂料分析方面的应用实例。本书还举例叙述了仪器分析在涂料开发研究和未知样品剖析方面的综合应用。  相似文献   

5.
童国忠 《分析化学》2007,35(2):308-308
本书是集红外光谱、气相色谱等大型仪器分析技术和涂料分析技术相结合的实用型技术书籍。全书共分17章,分别介绍了气相色谱、色谱质谱联用、裂解色谱、凝胶色谱、液相色谱、红外光谱、紫外可见光谱、原子吸收光谱、x射线荧光及衍射光谱、数码摄像光学显微镜、电子及原子力显微镜、热分析以及其他精密测试仪器的基本原理、测试方法,并列举了大量涂料分析方面的应用实例。本书还举例叙述了仪器分析在涂料开发研究和未知样品剖析方面的综合应用。  相似文献   

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辉光放电灯(GDL)作为光源被广泛应用于固体样品的直接分析中,文章综述了GDL的发展过程、类型及其在分析中的应用。  相似文献   

9.
原子吸收分光光度法在有机分析中的应用   总被引:7,自引:0,他引:7  
本文将各种用于有机化合物分析的AAS方法按其所用的化学反应分为七类,并按类介绍和评述了AAS在有机分析中的部分重要工作和近期发展,就间接AAS的优缺点、主要研究内容和新技术的应用做了探讨。  相似文献   

10.
药物发光分析的研究与展望   总被引:3,自引:0,他引:3  
本文概述了国内目前药物发光分析的现状着重对荧光,化学发光和磷光光谱法在药物分析中的应用作了较详细的介绍,此外还介绍了作者近几年来用发光技术与薄层分离联用进行药物含量测定,中药微量元素测定,血药浓度监测和药代动力学研究的研究工作,提出了药物发光分析研究了目前主要是要把高分离度与高灵敏度检测相结合及连续操作。  相似文献   

11.
光度分析法在药物分析中的研究与应用   总被引:1,自引:1,他引:0  
综述了国内近年来光度分析法在药物分析中的研究与应用情况.就分光光度法、荧光光度法、化学发光法3种重要的分析方法,从反应条件、线性范围、灵敏度等方面介绍了光度分析法对不同反应体系的研究现状,展望了光度分析法在药物分析中的发展方向.  相似文献   

12.
《Analytical letters》2012,45(8):951-961
Abstract

Carbamazepine, a tricyclic antidepressant, has been assayed in its tablets (Tegretol ®) by the application of PMR spectrometry. The proposed method involves comparing the integral of the aromatic and olefinic protons of carbamazepine, in the range 6.60 -7.60 ppm, to that of the singlet of a known amount of hexamethylcyclotrisilazane (at 0.00 ppm) used as internal standard. The method is simple, rapid and accurate. The average percent recovery, of carbamazepine from its tablets, is 96.88 ± 0.93. In addition, the PMR spectrum obtained helps in checking the identity and purity of the drug extracted from its pharmaceutical preparation.  相似文献   

13.
针对目前制药工程专业药物分析实践教学中存在的缺乏工科性、与生产联系少等问题,通过实践教学改革和查阅文献,从校内实验、校内实训和校外实习3个方面对药物分析的实践教学模式进行了探索,强调该课程的综合性和工科特色,增强了学生实践能力。  相似文献   

14.
When trypsin reacts with Herring sperm DNA (hsDNA), Salmon sperm DNA (sDNA), and Calf thymus DNA (ctDNA) to form a complex, the resonance Rayleigh scattering (RRS) was remarkably enhanced and new RRS spectra appear. These new spectra have similar characteristics of RRS spectra. The maximum RRS peaks are at 307 nm (hsDNA, sDNA) and 290 nm (ctDNA), and other peaks are at 350 nm. The scattering intensity is proportional to the concentration of DNA or trypsin; so this intereaction can be used to determine trypsin using DNA or DNA using trypsin. In the determination of DNA using trypsin, the linear ranges for hsDNA, sDNA, and ctDNA are 0–2.3, 0–2.5, and 0–1.9 μg·mL−1, and the detection limits are 0.4, 0.7, and 1.1 ng·mL−1, respectively. In the determination of trypsin using hsDNA, the linear range is 0–30.0 μg·mL−1, and the detection limit is 39.0 ng·mL−1. In this paper, the intereaction conditions were optimized. The affecting factors, chemical properties of the complex, and the composition ratio of trypsin with DNA were investigated. Using trypsin as RRS probe, a sensitive method for the determination of trace amounts of DNA was developed. Translated from Chemical Journal of Chinese Universities, 2006, 27(3) (in Chinese)  相似文献   

15.
The interaction between congo red (CR) and amikacin (AMK) was studied by resonance Rayleigh scattering (RRS), frequency doubling scattering (FDS) and second-order scattering (SOS) combining with absorption spectrum. In a weak acidic medium, CR combined with AMK to form an ion association complex with the composition ratio of 1∶1 by electrostatic interaction, hydrophobicity and charge transferring effect. As a result, the new spectra of RRS, FDS, and SOS appeared and their intensities were enhanced greatly. The maximum wavelengths of RRS, FDS and SOS were located at 563 nm, 475 nm and 940 nm, and the scattering intensities were proportional to the concentration of AMK. These three methods have very high sensitivities, and the detection limits were 4.0 ng·mL?1 for RRS, 3.6 ng·mL?1 for FDS and 1.9 ng·mL?1 for SOS, respectively. At the same time, the methods have better selectivity. A new method for the determination of trace amounts of AMK with congo red by resonance scattering technique has been developed. The recovery for the determination of AMK in blood serum and urine sample was between 95.5% and 105.5%. In this study, the properties, such as enthalpy of formation, charge distribution and mean polarizability, were calculated by AM1 quantum chemistry method. In addition, the reaction mechanism and the reasons for the enhancement of scattering spectra were discussed.  相似文献   

16.
In a pH 3.6-5.0 Hac-NaAc buffer solution, when sodium tanshinon ⅡA silate (STSⅡA) reacts with La(Ⅲ) to form a chelate, the resonance Rayleigh scattering (RRS) intensity can be enhanced greatly and a new RRS spectrum will appear. The maximum RRS peak is located at 306 nm and the RRS intensity is proportional to the concentration of STSⅡA in a certain range. The method is very sensitive and the detection limit for STSⅡA (3σ/K) is 82.12 ng·mL-1. The optimum reaction conditions and the effect of coexisting substances have been investigated. A new, simple and fast method for the determination of STSⅡA based on RRS method is developed. It can be applied to the determination of STSⅡA in the synthesis samples and Nuoxinkang injection. Combined with infrared absorption and NMR spectra, the structure of the chelate and the reasons of RRS enhancement are also discussed.  相似文献   

17.
刘绍璞  王芬  刘忠芳  胡小莉 《化学学报》2007,65(10):962-970
用共振瑞利散射光谱研究了盐酸表柔比星(EPI)与小牛胸腺DNA(ctDNA)、鲑鱼DNA(sDNA)、鲱鱼精DNA(hsDNA)和酵母RNA(yRNA)等核酸之间的相互作用. 实验表明在pH 2.0左右的酸性介质中, 表柔比星及核酸本身的共振瑞利散射(RRS)均十分微弱, 但是当它们相互作用形成结合产物时, 将导致RRS增强并出现新RRS光谱. 不同核酸与表柔比星结合产物的RRS 光谱特征略有差异, 散射增强程度则各不相同, 其相对散射强度的顺序是ctDNA≈sDNA>hsDNA>yRNA . 在一定范围内核酸浓度与散射强度成正比, 据此可以建立一种新的用表柔比星测定DNA的 RRS 法, 方法具有高灵敏度, 对于不同DNA 其检出限(3s)在24.0 ng/mL 至28.0 ng/mL 之间, 用于合成样品分析, 结果满意. 文中还研究了适宜的反应条件, 影响因素和结合产物的分析化学性质. 结合吸收光谱和荧光光谱特征对表柔比星与DNA 的反应机理进行了讨论.  相似文献   

18.
本文提出了对于手性药物普萘洛尔手性识别和手性分析的新方法。 该方法引用基于氧化石墨烯的指数富集配体系统进化筛选技术(GO-SELEX),经过10轮优化筛选出对心血管药物普萘洛尔有高度亲和力的特效适配体。 然后通过共振瑞利散射光谱法(RRS)对反应体系进行特效性检测,实验表明S-普萘洛尔和R-普萘洛尔有迥然不同的光谱差异,S-普萘洛尔与特效适配体结合后的RRS显著增强,而R-普萘洛尔与适配体结合后的RRS几乎没有变化。 据此可以对心血管药物手性普萘洛尔进行有效的手性识别。 在考察反应体系和实验条件的基础上,可对S-普萘洛尔进行实验检测,同时对外消旋体中的R-普萘洛尔进行计算分析。 实验对S-普萘洛尔的线性范围为5~275 nmol/L,检测限为0.5 nmol/L。 方法应用于外消旋药片的分析检测,结果令人满意。 实验表明,RRS检测特效适配体结合的手性靶标体系会彰显不同的光谱差异,从而可对手性对映体进行手性识别,尤其是可利用其光谱差异实现同时测定的手性分析,方法可在特殊情形下不经分离而同时测定手性对映体,具有推广应用价值。  相似文献   

19.
就目前研究较多的测定痕量硒的光度分析法进行了综述,着重介绍了分光光度法、荧光光度法、散射光谱法、原子吸收光谱法、电感耦合等离子体发射光谱等方法.  相似文献   

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