一种高性能液态色谱法验证方法和一个Box-Behnken实验设计,用于从Nectandra reticulata中提取Quercitrin的优化
Juanita Pulido Teuta1, Carlos-Eduardo Narváez-Cuenca2, Mónica Ávila Murillo1
1Universidad Nacional de Colombia, Sede Bogotá, Facultad de Ciencias, Departamento de Química, Quipronab Carrera 30 No. 45-03 Bogotá Colombia.
RSC advances
|July 10, 2024
概括
这项研究验证了一种量化夸西的方法,这是Nectandra reticulata中的一种化合物,具有治疗阿尔茨海默病的潜力. 位置显著影响酸的回收,采用60%的乙醇在50°C时实现了优化提取.
科学领域:
- 植物化学 植物化学
- 分析化学 分析化学
- 药理学 药理学是指药理学的学科.
背景情况:
- 尼克坦德拉网拉提取物含有奎尔素,一种化合物通过LXR受体对阿尔茨海默氏病表现出活性.
- 奎尔西特林的治疗潜力需要可靠的量化和提取方法.
研究的目的:
- 根据国际协调会议的指导方针,验证Quercitrin量化分析方法.
- 调查地理位置和提取技术对夸西特林回收的影响.
- 用超声波辅助提取和Box-Behnken设计来优化夸西特林提取.
主要方法:
- 方法验证包括线性,LOD,LOQ,准确性,精度 (可重复性,中间值,可重复性),稳定性和特异性.
- 提取方法 (透,化,超声波辅助) 和地理位置 (Oiba,格拉纳达,Chiquinquira) 的比较分析.
- 采用Box-Behnken设计,以优化超声波辅助取Quercitrin和产量的参数.
主要成果:
- 验证的方法:线性范围为5-180 mg/L,LOD为0.26 mg/L,LOQ为0.86 mg/L. 准确性 (93.8%的恢复),可重复性 (3.3%的RSD),中间精度 (5.4%的RSD) 和可重复性 (1.4%的RSD) 是可以接受的.
- 位置显著影响了染色学概况和酸回收,而不是提取方法.
- 优化的提取条件:60%的乙醇,50°C,产生最大的Quercitrin和最高的提取产量在40mL/g的溶剂与材料比率.
结论:
- 一种强大且特定的西的分析方法得到了成功验证.
- 地理原产地是影响Nectandra reticulata.中的Quercitrin含量的一个关键因素.
- 优化的超声波辅助提取提供了一种高效的方法,最大限度地提高西的回收.
相关概念视频
High-Performance Liquid Chromatography: Elution Process
454
In High-Performance Liquid Chromatography (HPLC), the elution process is critical to the separation of analytes and the quality of chromatographic results. Elution describes how compounds move through the column and separate based on their interactions with the mobile and stationary phases. This process determines the resolution, peak shape, and retention times in the chromatogram, which are essential for identifying and quantifying components in complex mixtures. Understanding the elution...
454
High-Performance Liquid Chromatography: Introduction
1.9K
High-performance liquid chromatography(HPLC), formerly referred to as High-pressure liquid chromatography, is a powerful technique used to separate, identify, and quantify components in complex mixtures. The term "high pressure" refers to using high pressure to push the liquid mobile phase through the tightly packed columns.
In HPLC, two phases play a critical role in the separation process:
In HPLC, two phases play a critical role in the separation process:
1.9K
High-Performance Liquid Chromatography: Instrumentation
1.8K
High-performance liquid chromatography, or HPLC, is an analytical technique that separates liquid samples under high pressures. An HPLC instrument consists of glass bottles for storing solvents called mobile phase reservoirs. HPLC-grade solvents are used to maintain high purity, and the dissolved gases are removed using a degasser, such as a vacuum pumping system or sparging with helium. The solvents are then pumped into the analytical column using a screw-driven syringe or reciprocating pumps.
1.8K


