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相关概念视频

Sample Preparation for Analysis: Overview01:21

Sample Preparation for Analysis: Overview

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Sample preparation is an essential step in the analytical process. It involves preparing a sample so that it can be analyzed accurately. The goal is to extract the analyte, the substance you want to measure, from the sample while removing any components that may interfere with the analysis. Sample preparation techniques vary depending on the physical state of the sample.
Bulk or large solid samples are typically reduced in size using grinding, crushing, or milling techniques to increase the...
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Sample Preparation for Analysis: Advanced Techniques01:08

Sample Preparation for Analysis: Advanced Techniques

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Accurate analysis of complex samples often requires advanced preparation techniques to achieve reliable and reproducible results. Samples containing inorganic or organic materials can be challenging to dissolve or decompose effectively. Standard sample preparation methods include acid digestion, fusion, dry ashing, and wet digestion.
Acid digestion with strong acids is commonly used to dissolve inorganic materials that are insoluble (do not dissolve) in water. This method can be useful for...
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相关实验视频

Updated: Jan 9, 2026

A Lipid Extraction and Analysis Method for Characterizing Soil Microbes in Experiments with Many Samples
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A Lipid Extraction and Analysis Method for Characterizing Soil Microbes in Experiments with Many Samples

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用于制药分析的土壤样本准备过程中的程序性挑战

Agnieszka Fiszka Borzyszkowska1, Ewa Olkowska1, Lidia Wolska1

  • 1Department of Environmental Toxicology, Faculty of Health Sciences with Institute of Maritime and Tropical Medicine, Medical University of Gdansk, Debowa 23 A, 80-204 Gdansk, Poland.

Molecules (Basel, Switzerland)
|December 11, 2025
PubMed
概括

在土壤中分析药物残留物需要仔细的样本准备. 这项研究优化了改善24种药品回收率的方法,这些药品对于环境监测至关重要.

科学领域:

  • 环境化学环境化学
  • 分析化学 分析化学
  • 食品科学 食品科学 食品科学

背景情况:

  • 来自工业农场的药品对环境和公共健康构成风险.
  • 准确地确定土壤中的微量药物含量是一项挑战.
  • 选择适当的分析物提取程序对于可靠的结果至关重要.

研究的目的:

  • 评估5种样本制备程序,用于在土壤中确定24种药品.
  • 为了比较不同制备方法的分析回收率.
  • 确定一种优化程序,用于分析环境土壤样本中的药物残留物.

主要方法:

  • 评估超声波和过技术,以尽量减少分析物损失.
  • 用五种不同的制备方法对24种药物的分析物回收进行比较.
  • 将优化程序应用于来自家禽养殖场区域的土壤样本.

主要成果:

  • 超声波和过可以导致某些药物的显著消除 (高达100%),如阿莫西西林,安比西林和林氏素.
  • 与初始方法相比,优化程序改善了24种药品中的15种药品的回收.
  • 具有同位素标记的内部标准使问题化合物的精确分析具有低回收.
关键词:
这是LC-MS/MS.提取技术 提取技术过过器的过方式是药品制品制品制品制品制品制品制品制品土壤土壤土壤土壤土壤吸收 吸收 吸收 吸收超声波的超声波处理方法

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结论:

  • 优化样品制备程序对于在复杂的环境矩阵中进行准确的制药残留分析至关重要.
  • 尽管在样品制备过程中可能出现损失,但使用内部标准的方法可以达到可接受的准确性.
  • 这项研究有助于改善对土壤中制药污染物的环境监测策略.