不同的方法来解决重叠的紫外线光谱的组合药物剂量形式的西普罗夫洛克萨和甲尼达
Mahmoud M Sebaiy1, Sobhy M El-Adl2, Alaa Nafea2
1Medicinal Chemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt. mmsebaiy@zu.edu.eg.
BMC chemistry
|October 11, 2023
概括
新的光谱光度测量方法可以在没有事先分离的情况下准确地测定齐普罗夫洛克萨和美特罗尼达的组合. 这些经过验证的技术为药品质量控制提供了简单,精确和可靠的分析.
科学领域:
- 分析化学 分析化学
- 药品分析 药品分析
背景情况:
- 准确量化药物组合对于制药质量控制至关重要.
- 齐普罗夫洛克萨和甲尼达经常被联合配制,因此需要可靠的分析方法.
研究的目的:
- 开发和验证简单,特定,精确和准确的光谱光度测量方法,用于同时确定西普罗夫洛克萨和美特罗尼达.
- 为了比较开发的方法的性能.
主要方法:
- 开发了四种光谱光度法:先进的吸收减法 (AAS),光谱减法,双变量和比率差异.
- 根据ICH建议验证方法,评估准确性,可重复性,稳定性和准确性.
主要成果:
- 所有四种开发的光谱法都成功地确定了无需先前分离的西普罗夫洛克萨和美特罗尼达的组合.
- 验证结果显示,所有方法的精度,可重复性,稳定性和准确性都达到了可接受的水平.
- 统计比较突出了每个拟议方法的优点和缺点.
结论:
- 开发的光谱光度测量方法提供了简单,准确和可靠的方法,可以同时分析西普罗夫洛克萨和美特罗尼达.
- 这些方法适用于含有药物组合的制药配方的常规质量控制.
相关概念视频
Combined Effects of Drugs: Synergism
4.0K
Synergism is a useful mechanism where combining two or more drugs is more effective than each constituent used alone. Such combinations are also called supra-additive interactions. The drugs collectively enhance the final therapeutic effect by acting on different targets. Another advantage is that the low dose of each constituent drug is sufficient to achieve the desired effect. This helps reduce the duration of therapy and lower the adverse effects of these drugs.
Such synergistic combinations...
Such synergistic combinations...
4.0K
UV–Vis Spectroscopy of Conjugated Systems
7.1K
Organic compounds with conjugated double bonds show strong absorption features in the UV–visible region of the electromagnetic spectrum attributed to π → π* electronic excitations. Generally, a UV–vis absorption spectrum is recorded as a plot of absorbance vs wavelength. The wavelength of maximum absorbance, which manifests as a peak in the absorption spectrum, is denoted as λmax.
One of the factors influencing λmax is the extent...
One of the factors influencing λmax is the extent...
7.1K
UV–Vis Spectrometers
1.4K
The absorbance of UV and visible (UV–visible) radiations is measured using a UV–visible spectrophotometer. Deuterium lamps, which emit UV radiation, and tungsten lamps, which produce radiation in the visible region, are used as light sources in UV–visible spectrophotometers. A monochromator or prism is used for diffraction grating, i.e., to split the incoming radiation into different wavelengths. A system of slits is used to focus the desired wavelength on the sample cell.
1.4K
Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview
2.8K
Ultraviolet–visible (UV–visible or UV–Vis) spectroscopy is an analytical technique that investigates the interaction between matter and UV–Vis light within the electromagnetic spectrum. This method is widely used for its versatility, simplicity, and relatively quick data acquisition, making it valuable for both qualitative and quantitative analysis. When UV–Vis radiation passes through a material, molecules absorb light depending on the energy required for...
2.8K
Factors Affecting Dissolution: Drug Permeability, Stability and Stereochemistry
211
Orally administered drugs primarily enter the systemic circulation via passive diffusion through the intestinal membranes. The drug's absorption is influenced by drug stability in the gastrointestinal GI tract, membrane permeability, the surface area available for absorption, luminal drug concentration, and residence time in the lumen. Drug permeability can be enhanced by adjusting the lipophilicity, polarity, or molecular size of the drug, promoting its passive transport across intestinal...
211
UV–Vis Spectrum
1.1K
When light passes through a substance, a portion of the light is absorbed while the remaining light is reflected or transmitted. If the molecule absorbs light between the wavelengths of 180–400 nm range, the UV spectrum is obtained, and if it absorbs light in the 400–780 nm wavelength range, the visible spectrum is obtained.
The UV–Vis spectrum of a molecule is the plot of its absorbance versus wavelength. The plot is drawn by taking molar...
The UV–Vis spectrum of a molecule is the plot of its absorbance versus wavelength. The plot is drawn by taking molar...
1.1K


