相关实验视频

Updated: Aug 10, 2026

Evaluating the Effect of Environmental Chemicals on Honey Bee Development from the Individual to Colony Level

Evaluating the Effect of Environmental Chemicals on Honey Bee Development from the Individual to Colony Level

Published on: April 1, 2017

在农村和城市蜂蜜中对阻燃剂进行有针对性和非有针对性的查

Gabriel Leung¹, Caren Akiki¹, Shaghig Bilamjian¹

¹Department of Food Science and Agricultural Chemistry, McGill University, 21111 Lakeshore Road, Ste-Anne-de-Bellevue, QC, H9X 3V9 Canada.

|August 27, 2023

概括

在北克的城市和农村蜂蜜样本中检测到阻燃剂. 蜂蜜可以作为环境阻燃剂污染的生物指标.

科学领域:

环境化学环境化学
分析化学分析化学
生态毒理学生态毒理学

背景情况:

阻燃剂 (FR) 在商业产品中广泛使用,但可以入环境中.
蜜蜂收集花蜜,可能会积累空气中的污染物,如FRs.
蜂蜜污染是区域污染水平的一个指标.

研究的目的:

来自加拿大北克的城市和农村蜂蜜中的阻燃剂的发生情况.
开发和验证一种非目标查工作流程,用于蜂蜜中的FRs.
评估蜂蜜作为FR污染的潜在生物指标.

主要方法:

直接注射方法与液体染色学-四极点飞行时间质谱法 (LC-QTOF-MS) 相结合.
针对特定FR的有针对性的分析 (TBOEP,TPHP).
使用内部图书馆进行非目标选工作流程,以更广泛地识别FR.

主要成果:

在蜂蜜中检测到微量水平 (<1 ng/mL) 的tris(2-butoxyethyl) 酸盐 (TBOEP) 和三酸盐 (TPHP).
使用非目标化工作流确定了二二酸 (TCIPP).
城市和农村蜂蜜样本之间的FR水平没有显著差异.

结论:

这项研究是第一个使用直接注射和非向查方法报告蜂蜜中的FR.
非目标化工作流有效地识别了蜂蜜中的未知FR化合物.
蜂蜜作为一个可行的生物指标来评估空气中的FR污染.

关键词:

阻燃剂是一种阻燃剂.蜂蜜蜂蜜蜂蜜蜂蜜这就是LC-MS.非有针对性的查.

更多相关视频

Video Tracking Protocol to Screen Deterrent Chemistries for Honey Bees

Video Tracking Protocol to Screen Deterrent Chemistries for Honey Bees

Published on: June 12, 2017

Identifying Per- and Polyfluorinated Chemical Species with a Combined Targeted and Non-Targeted-Screening High-Resolution Mass Spectrometry Workflow

Identifying Per- and Polyfluorinated Chemical Species with a Combined Targeted and Non-Targeted-Screening High-Resolution Mass Spectrometry Workflow

Published on: April 18, 2019

相关概念视频

Dose-Response Relationship: Selectivity and Specificity

Dose-Response Relationship: Selectivity and Specificity

Drugs exert their therapeutic effects by interacting with receptors, enzymes, or ion channels that are present throughout the human body. The strength and duration of the interaction between a drug and its target receptor are characterized by the selectivity and specificity of the drug. Selectivity refers to a drug's strong preference for its intended target over other targets. For instance, isoprenaline, a non-selective β-adrenergic agonist, interacts with both β1- and β2-adrenergic receptors...