在极地杀虫剂检测和量化中用于液体染色学的商业可用列的染色学比较,使用基于分数的方法
Emanuela Verdini1, Tommaso Pacini1, Serenella Orsini1
1Chemistry Department, Istituto Zooprofilattico Sperimentale dell'Umbria e delle Marche "Togo Rosati", 06126 Perugia, Italy.
Foods (Basel, Switzerland)
|October 16, 2024
概括
选择合适的液态色谱 (LC) 列对于准确检测食品中的极性农药至关重要. 这项研究评估了三个专门的LC列,用于分析蛋中的极地农药,确定可靠量化的最佳方法.
科学领域:
- 分析化学 分析化学
- 食品安全分析 食品安全分析
- 环境科学 环境科学
背景情况:
- 极地杀虫剂在液态染色体质谱学 (LC-MS) 中带来分析挑战,原因是传统方法的保留率和峰值形状不佳.
- 这些农药的高极性和水友性需要专门的静止阶段来进行有效的分离和量化.
研究的目的:
- 为了比较三个不同的LC列 (HypercarbTM,Raptor Polar XTM和Anionic Polar PesticideTM) 的性能,用于极地农药分析.
- 为了评估这些列在分离和量化11种极性农药在像蛋这样的复杂矩阵中的有效性.
主要方法:
- 使用超高性能液态染色学 (UPLC) 与四极飞行时间 (Q-TOF) 质谱仪相结合.
- 采用基于分数的方法来评估列表表现.
- 包括样品制备步骤,如冷,离心和过.
主要成果:
- 在对极地农药的评估LC列的分离和量化能力中显示出显著的差异.
- 确定了特定的柱子,为草甘,埃塞,酸和酸等分析物提供了更好的保留和峰值形状.
- 突出了列选择对在复杂的食品矩阵中获得准确结果的关键影响.
结论:
- 选择LC列对于成功检测和量化动物来源食品样本中的极地农药至关重要.
- 该研究为选择最适合特定极地农药分析需求的染色学列提供了实际框架.
- 优化方法对于确保食品安全和遵守监管计划至关重要.
相关概念视频
01:11High-Performance Liquid Chromatography: Introduction
1.6K
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:
1.6K
01:15High-Performance Liquid Chromatography: Types of Detectors
496
The role of the detectors in High-Performance Liquid Chromatography (HPLC) is to analyze the solutes as they exit from the chromatographic column. The detector recognizes the solute's property and generates corresponding electrical signals, which are converted into a readable graph of the detector's response versus elution time called a chromatogram at the computer. There are several types of HPLC detectors, each with its own advantages and limitations, depending on the analyte...
496
01:13Principles Of Column Chromatography
6.7K
The chromatography technique was first invented in 1901 by Michael S. Tswett, a Russian botanist, to separate plant pigments using organic solvents. Further, in 1941, Archer John Porter Martin and R. L. M. Synge modified the technique by packing silica gel into a column. A mixture of amino acids was then separated on the packed column using chloroform and water mixture as the mobile phase. This was the first report on column chromatography. At present, column chromatography is a widely used...
6.7K
00:57High-Performance Liquid Chromatography: Instrumentation
1.4K
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.
1.4K
01:10Chromatography: Introduction
3.9K
Chromatography is a technique used to separate compounds based on differences of partitioning between two phases, the stationary phase and the mobile phase.
The phase in which the compounds linger or on which the compounds adsorb is called the stationary phase, whereas the mobile phase is the solvent that carries the solutes to be analyzed. In traditional column chromatography, the mixture flows through the stationary phase, and the compounds partition between the stationary and mobile phases...
The phase in which the compounds linger or on which the compounds adsorb is called the stationary phase, whereas the mobile phase is the solvent that carries the solutes to be analyzed. In traditional column chromatography, the mixture flows through the stationary phase, and the compounds partition between the stationary and mobile phases...
3.9K
01:12Chromatographic Methods: Classification
1.8K
Chromatographic techniques are classified in three ways: the classification is based on the physical state of the stationary and mobile phases, how the mobile phase and the stationary phase contact each other, or through the chemical or physical processes that isolate the components of the sample. Typically, the mobile phase is either a liquid or gas, while the stationary phase is either a solid or a liquid layer applied to a solid surface.
Chromatographic techniques are typically named by...
Chromatographic techniques are typically named by...
1.8K