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相关概念视频

High-Performance Liquid Chromatography: Introduction01:11

High-Performance Liquid Chromatography: Introduction

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:
High-Performance Liquid Chromatography: Elution Process01:05

High-Performance Liquid Chromatography: Elution Process

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...
High-Performance Liquid Chromatography: Instrumentation00:57

High-Performance Liquid Chromatography: Instrumentation

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.

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Gas Chromatography-Mass Spectrometry Paired with Total Vaporization Solid-Phase Microextraction as a Forensic Tool
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增强的HPLC方法用于野猪污染量化.

R Pereira-Pinto1,2, M Barros1,2, M Vaz-Velho1,2

  • 1CISAS - Centre for Research and Development in Agrifood Systems and Sustainability, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun'Álvares, 4900-347, Viana do Castelo, Portugal.

ChemistryOpen
|May 29, 2024
PubMed
概括
此摘要是机器生成的。

这项研究验证了一种染色学方法,以准确量化skatole和androstenone,这两种关键化合物导致猪的猪. 这种可靠的方法通过测量猪脂中的这些引起气味的物质来确保更好的猪肉质量.

关键词:
安德罗斯一是一种野猪的污染 野猪的污染液体色谱学 液体色谱学 液体色谱学方法验证方法的验证方法.斯卡托尔斯卡托尔斯 斯卡托尔斯

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科学领域:

  • 分析化学 分析化学
  • 食品科学 食品科学 食品科学
  • 动物科学动物科学

背景情况:

  • 猪,猪肉中的不良气味,源于整个雄猪中安德罗和斯卡托尔的积累.
  • 这影响了猪肉的整体质量和消费者接受度.
  • 准确量化这些化合物对于质量控制至关重要.

研究的目的:

  • 验证一种适应的染色法,用于量化猪液体脂肪中的skatole和androstenone.
  • 评估该方法的可靠性,准确性和稳定性,用于野猪污染分析.

主要方法:

  • 使用光检测的染色学方法的调整和验证.
  • 在猪液体脂肪中测量skatole (SKA) 和androstenone (AND) 的数量.
  • 外部校准的应用和回收,精度和强度的评估.

主要成果:

  • 为SKA (4.4分钟) 和AND (9.9分钟) 实现了出色的染色分离.
  • 已证明高线性 (R2=0.9999),低检测极限 (SKA为1.53 ng/g,AND为16.02 ng/g),以及优异的恢复率 (SKA为99.72%,AND为102.84%).
  • 在参考范围内展示了高精度 (RSD < 6.98%) 和稳定性.

结论:

  • 验证的染色学方法是可靠的,准确的,强大的量化skatole和androstenone.
  • 这种方法可以有效地帮助管理和减轻猪肉生产中的野猪污染.
  • 确保猪肉质量改善和消费者满意度.