绿色和可持续的光谱法测定纯酸和水样使用功能化碳量子点的纯酸
Rami M Alzhrani1, Atiah H Almalki2,3, Maram H Abduljabbar4
1Department of Pharmaceutics and Industrial Pharmacy, College Pharmacy, Taif University, Taif, Saudi Arabia.
Luminescence : the journal of biological and chemical luminescence
|January 25, 2025
概括
一种使用功能化碳量子点的新光谱光度法,可以在鱼池水中灵敏地确定酸黄. 这种环保的方法提高了海鲜的安全性和质量监测.
科学领域:
- 环境化学环境化学
- 分析化学 分析化学
- 生物技术是生物技术.
背景情况:
- 人们对水产养殖化学品,特别是酸黄对环境的影响存在担忧.
- 尼托福兰是水产养殖中广泛使用的抗微生物药物,具有潜在的安全风险.
- 准确地确定鱼池水中的酸黄对于海产品的安全性和质量至关重要.
研究的目的:
- 开发一种新的光谱计量方法,用于在水产养殖水样中量化酸黄.
- 为了提高尼托福兰因检测的灵敏度和选择性.
- 评估开发的方法的环境可持续性.
主要方法:
- 碳量子点的功能化用氨酸甲烯基酸盐进行选择性检测.
- 使用光灭功能化碳量子点在酸黄的存在下.
- 验证该方法的线性 (5-150 ng/mL) 和检测极限 (1.251 ng/mL).
- 使用分析性生态尺度和绿色度指标对环境友好性的评估.
主要成果:
- 开发的光谱光度测量方法显示了高灵敏度和广泛的检测范围为酸黄.
- 该方法表现出度依赖的光火,使得准确的量化.
- 与UHPLC方法相比,新方法显示了更好的灵敏度和更广泛的线性范围.
- 环境评估表明,开发的方法比UHPLC技术具有更高的可持续性.
结论:
- 这种新型的光谱计量方法提供了一种敏感,选择性和环保的方法,用于在鱼池水中测定酸黄.
- 这种方法有助于确保海产品的安全性和质量,通过有效监测抗微生物残留物.
- 这些发现突显了功能化碳量子点在开发环境监测可持续分析技术方面的潜力.
更多相关视频
09:24Application and Methodology of the Non-destructive 19F Time-domain NMR Technique to Measure the Content in Fluorine-containing Drug Products
Published on: August 22, 2017
8.3K
07:13Author Spotlight: High-Quality Quantum Dot Nanobeads for Sensitive Fluorescent Lateral Flow Immunoassays
Published on: June 28, 2024
1.1K
相关概念视频
01:24pH
The potential of hydrogen (pH) is a measure of the acidity or basicity of a water-based solution determined by the concentration of hydronium ions (H3O+). In one liter of pure water at neutral pH, there are 1×10−7 moles of hydronium ions. However, the extensive range of hydronium ion concentrations present in water-based solutions makes measuring pH in moles cumbersome. Therefore, a pH scale was developed to convert moles of hydronium ions into the negative logarithm of the hydronium ion...
01:24pH
The potential of hydrogen (pH) is a measure of the acidity or basicity of a water-based solution determined by the concentration of hydronium ions (H3O+). In one liter of pure water at neutral pH, there are 1×10−7 moles of hydronium ions. However, the extensive range of hydronium ion concentrations present in water-based solutions makes measuring pH in moles cumbersome. Therefore, a pH scale was developed to convert moles of hydronium ions into the negative logarithm of the hydronium ion...
01:21Chemical Ionization (CI) Mass Spectrometry
The molecular ion peak of a molecule in the mass spectrum provides vital information for molecular identification. However, conventional electron impact ionization can lead to the rapid dissociation of some molecular ions before they reach the detector. A milder ionization method is required to increase the lifetime of such ionized analyte molecules. Chemical ionization (CI) is a gas-phase protonation reaction useful for mass-analyzing analyte molecules that are easily protonated to yield the...
01:28IR and UV–Vis Spectroscopy of Carboxylic Acids
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, 1710 cm−1. The C=O bond of the...
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, 1710 cm−1. The C=O bond of the...
01:30NMR and Mass Spectroscopy of Carboxylic Acids
In ¹H NMR spectroscopy, acidic protons (–COOH) of carboxylic acids are highly deshielded and absorb far downfield, at around 9–12 ppm. The chemical shift value depends on the concentration and solvent used.
While α protons of carboxylic acids absorb at 2–2.5 ppm, β protons absorb further upfield.
Carboxylic acids are easily identified by dissolving them in deuterium oxide, which results in a rapid exchange of the acidic protons with deuterium. This leads to the disappearance of the acidic...
While α protons of carboxylic acids absorb at 2–2.5 ppm, β protons absorb further upfield.
Carboxylic acids are easily identified by dissolving them in deuterium oxide, which results in a rapid exchange of the acidic protons with deuterium. This leads to the disappearance of the acidic...
01:18Titration of Polyprotic Base with a Strong Acid
The titration of a polyprotic base such as sodium carbonate with a strong acid such as hydrochloric acid results in two equivalence points on the titration curve. At the first equivalence point, the carbonate ions in the base are completely converted to bicarbonate ions. The second equivalence point corresponds to the complete conversion of bicarbonate ions to carbonic acid, which dissociates into carbon dioxide and water. The region before the first equivalence point corresponds to the...