相关实验视频

Updated: May 31, 2025

Synthesis of PolyN-isopropylacrylamide Janus Microhydrogels for Anisotropic Thermo-responsiveness and Organophilic/Hydrophilic Loading Capability

Synthesis of PolyN-isopropylacrylamide Janus Microhydrogels for Anisotropic Thermo-responsiveness and Organophilic/Hydrophilic Loading Capability

Published on: February 27, 2016

构建具有可调节的水友性新型超交联聚合物的构造,以有效提取胺醇

Cong Liu¹, Weihua Liu¹, Qianqian Wang¹

¹College of Science, Hebei Agricultural University, Baoding 071001, China.

Journal of chromatography. A

|January 24, 2025

概括

使用Phl-TBM固体相提取的新方法有效地检测食品和水中的胺醇 (NDZ). 这种方法为NDZ残留提供了敏感和可靠的分析,增强了食品安全控制.

科学领域:

分析化学分析化学
食品科学食品科学食品科学
环境科学环境科学

背景情况:

亚胺醇 (NDZs) 构成食品安全风险.
敏感的检测方法对于控制NDZ污染至关重要.

研究的目的:

开发一种灵敏且有效的方法,用于在各种矩阵中检测胺醇 (NDZ).
建立一种新的固相提取 (SPE) 吸附剂,用于NDZ缩.

主要方法:

从天然的佛洛和 (2,4,6-tris(甲基) 梅西烯) 中开发一个多孔聚合物吸附剂 (Phl-TBM).
应用Phl-TBM SPE用于从湖水,巴萨鱼和牛肉中隔离和丰富NDZ.
使用高性能液态染色体二极管阵列探测器 (HPLC-DAD) 分析NDZ.

主要成果:

由于其多孔性和结位,Phl-TBM表现出极好的NDZ吸附能力.
该方法实现了低检测极限:水中的0.02-0.06 ng/mL,鱼中的0.60-1.50 ng/g,牛肉中的0.70-1.20 ng/g.
获得了高方法恢复率 (80.0-120%) 和低相对标准偏差 (<8.1%).

结论:

基于Phl-TBM的SPE方法是有效的,并且可用于对NDZ残留物的微量检测.
这种方法有助于提高食品安全,使NDZ的可靠监测.
开发的吸附剂对食品和环境样本的常规分析具有前景.

关键词:

高性能液体色谱学高性能液体色谱学超交叉连接的聚合物.亚胺醇是一种胺醇.罗氨酸是一种素.固体相提取方法固体相提取方法

更多相关视频

Synthesis of an Intein-mediated Artificial Protein Hydrogel

Synthesis of an Intein-mediated Artificial Protein Hydrogel

Published on: January 27, 2014

An Efficient Method for the Synthesis of Peptoids with Mixed Lysine-type/Arginine-type Monomers and Evaluation of Their Anti-leishmanial Activity

An Efficient Method for the Synthesis of Peptoids with Mixed Lysine-type/Arginine-type Monomers and Evaluation of Their Anti-leishmanial Activity

Published on: November 2, 2016

相关概念视频

Ion Exchange

Ion Exchange

Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or...

Preparation of Carboxylic Acids: Hydrolysis of Nitriles

Preparation of Carboxylic Acids: Hydrolysis of Nitriles

Nitriles (R–CN) can be converted into carboxylic acids (R–COOH) upon treatment with aqueous acids, i.e., upon hydrolysis of nitriles. Under base-catalyzed conditions, carboxylate anions (R–COO−) are formed.

Preparation of Nitriles

Preparation of Nitriles

One of the common methods to prepare nitriles is the dehydration of amides. This method requires strong dehydrating agents like phosphorous pentoxide or boiling acetic anhydride for converting amides to nitriles. Another reagent namely, thionyl chloride also accomplishes the dehydration of amides, where amide acts as a nucleophile. The first step of the mechanism involves the nucleophilic attack by the amide on the thionyl chloride to form an intermediate. In the next step, the electron pairs...