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相关概念视频

Precipitation and Co-precipitation01:17

Precipitation and Co-precipitation

Precipitation and coprecipitation methods can be used to separate a mixture of ions in a solution. In qualitative inorganic analysis, ions that form sparingly soluble precipitates with the same reagent are separated based on the differences in solubility products. For example, consider the separation of Cu(II) and Fe(II) ions by precipitation as insoluble sulfides. First, copper(II) sulfide is precipitated by the addition of acidic H2S, where the dissociation of H2S is suppressed. Adding H2S...
Steel Manufacturing01:26

Steel Manufacturing

Steel manufacturing is a multi-stage process that begins by smelting iron ore into cast iron in a blast furnace. This initial stage involves layering iron ore with coke, a type of fuel, and crushed limestone within the furnace. The coke is ignited with a high volume of air, leading to the creation of carbon monoxide, which acts to reduce the iron ore to pure iron.
During this smelting process, limestone plays a crucial role by forming slag. Slag captures impurities within the molten iron, such...

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Development of Inhibitors of Protein-protein Interactions through REPLACE: Application to the Design and Development Non-ATP Competitive CDK Inhibitors
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开发高纯度铁素认证参考材料的开发.

Hui-Yeon Lee1, Youngjik Park1, Kyungjin Lee1

  • 1Department of Pharmacy and Research Institute of Pharmaceutical Science and Technology (RIPST), Ajou University, Suwon 16499, Republic of Korea.

Food chemistry
|November 21, 2025
PubMed
概括

为农药分析开发了一种稳定,高纯度的甲认证参考材料 (CRM). 这种新的CRM确保了可靠的甲残留量化,并提高了分析质量.

关键词:
在阿贡清洗后的包装中,使用了阿贡清洗.一致性评估的评估是一致性评估.根据ISO 33405的标准,它是33405.质量平衡的质量平衡.农药残留分析 农药残留分析稳定性评估 稳定性评估 稳定性评估不确定性估计估计不确定性

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科学领域:

  • 分析化学 分析化学
  • 环境科学 环境科学

背景情况:

  • 认证参考材料 (CRM) 对于准确的农药残留分析至关重要.
  • 现有的CRM可能缺乏必要的纯度或稳定性,以进行全面的氨酸分析.

研究的目的:

  • 开发一种稳定且高纯度的甲CRM.
  • 为了验证CRM适合可靠的农药残留分析.

主要方法:

  • 皮雷提取物的染色学净化.
  • 用阿贡清洗的包装提高了稳定性.
  • 质量平衡和外部校准以确定纯度.
  • 以ISO为指导的CRM物业评估方法.

主要成果:

  • 开发一种具有高纯度的pyrethrins CRM (总pyrethrins: 98.6 ± 0.9%). 开发一个高纯度的pyrethrins CRM (总pyrethrins: 98.6 ± 0.9%).
  • 量化六个具有认证纯度值和不确定性的单个氨酸化合物.
  • 证明了候选CRM的优异的一致性,稳定性和计量可追溯性.

结论:

  • 成功开发了一种稳定,高纯度的pyrethrins CRM.
  • CRM显著提高了氨酸残留分析的可靠性和质量.
  • 这种CRM是监管合规和环境监测的宝贵工具.