紫外光谱光度计作为一种方法,用于确定从水性介质中从奇托中释放的β-米尔的度
Marcus Vinicius Alves Barros1, Keila Cardoso Teixeira2, Laene da Silva Santos2
1Graduate Program in Chemistry, Federal University of Tocantins, Gurupi, TO 77.402-970, Brazil.
概括
这项研究开发了一种简单且具有成本效益的紫外光谱光度法,用于量化水中的β-米. 这种技术克服了测量这种烯的挑战,使得从聚合物矩阵中进行更好的药物释放研究成为可能.
科学领域:
- 分析化学 分析化学
- 频谱学是一种光谱学.
- 聚合物科学 聚合物科学
背景情况:
- 贝塔-米尔 (β-myrcene) 是一种在蜂和大麻中发现的有价值的烯,但其挥发性和不良水溶性限制了应用.
- 在水溶液中量化像β-myrcene这样的疏水分子具有挑战性,阻碍了从聚合物矩阵中释放它们的研究.
研究的目的:
- 开发一种简单,廉价和可靠的紫外光谱光度测量方法,用于在水性介质中量化β-米.
- 为了能够准确研究从聚合物矩阵中释放β-米尔,这与药物输送应用相关.
主要方法:
- 在0.05%的80多酸盐中制备β-米尔溶液,其度为0.01%至0.1% (v/v).
- 谱光测量分析在226nm进行,样品在三天内被分析三倍.
- 使用统计测试 (Q,F,学生t测试) 和回归分析 (R2>0.99) 来验证该方法的准确性,可重复性和稳定性.
主要成果:
- 紫外光谱光度法显示出高可重复性和准确性,回收率在可接受的范围内.
- 回归参数超过0.99,统计分析证实了该方法的可靠性.
- 检测和量化的极限表明该方法是可靠的,并且不受设备限制的显著影响.
结论:
- 紫外线光谱仪提供了一种可行,经济有效和可靠的方法来量化水溶液中的β-米尔.
- 这种经过验证的方法支持进一步研究基于聚合物系统的β-米尔释放动力学.
相关概念视频
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
UV–Vis Spectroscopy of Conjugated Systems
7.0K
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...
7.0K
UV–Vis Spectrometers
1.3K
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.
1.3K
Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview
2.6K
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...
2.6K
UV–Vis Spectroscopy: Woodward–Fieser Rules
24.2K
UV–Visible absorption spectra of conjugated dienes arise from the lowest energy π → π* transitions. The light-absorbing part of the molecule is called the chromophore, and the substituents directly attached to the chromophore are called auxochromes. A strong correlation exists between the absorption maxima, λmax, and the structure of a conjugated π system. The Woodward–Fieser rules predict the value of λmax for a given...
24.2K
IR and UV–Vis Spectroscopy of Carboxylic Acids
3.9K
In IR spectroscopy of carboxylic acids, the C=O bond shows a characteristic band between 1710 and 1760 cm⁻¹, and the O–H bond exhibits a broad band between 2500 and 3300 cm⁻¹.
However, the stretching absorptions for the C=O bond vary depending on the structure of carboxylic acids. The C=O bond of the free carboxylic acids shows a higher stretching frequency, 1760 cm−1, while H-bonded carboxylic acids (dimers) exhibit stretching absorptions at a lower frequency,...
However, the stretching absorptions for the C=O bond vary depending on the structure of carboxylic acids. The C=O bond of the free carboxylic acids shows a higher stretching frequency, 1760 cm−1, while H-bonded carboxylic acids (dimers) exhibit stretching absorptions at a lower frequency,...
3.9K


