相关实验视频

Updated: Jul 17, 2025

Dithranol as a Matrix for Matrix Assisted Laser Desorption/Ionization Imaging on a Fourier Transform Ion Cyclotron Resonance Mass Spectrometer

Dithranol as a Matrix for Matrix Assisted Laser Desorption/Ionization Imaging on a Fourier Transform Ion Cyclotron Resonance Mass Spectrometer

Published on: November 26, 2013

兴奋剂和被困离子流动性光谱学改善了脂质检测,用于麦的新型MALDI-MSI分析

Wai C D Lau¹, Leigh Donnellan¹, Matthew Briggs¹

¹UniSA Clinical and Health Sciences, Health and Biomedical Innovation, University of South Australia, Adelaide, South Australia 5000, Australia.

|September 3, 2023

概括

这项研究引入了一种新的MALDI-TIMS-MSI方法来分析麦脂质. 该技术改善了脂质检测和空间分布可视化,有助于发现谷物质量的生物标志物.

科学领域:

植物科学植物科学
分析化学分析化学
营养科学营养科学

背景情况:

麦 (Avena sativa L.) 是一种具有营养意义的谷物谷物,以其高脂含量而闻名.
了解麦脂质的组成和分布对于植物育种,食品科学和营养研究至关重要.
矩阵辅助激光脱/电离质谱成像 (MALDI-MSI) 是脂质分析的关键技术,但在麦样本制备和脂质识别方面面临挑战.

研究的目的:

开发和验证一种新的分析技术,用于在麦粒中高分辨率的脂质分析.
为了克服与麦脂质的MALDI-MSI相关的样本准备和分析挑战.
改进对麦脂质的识别和空间绘制,包括异构和异构化合物.

主要方法:

麦片被安装在涂有凝的氧化片上,添加化来增强三糖醇检测.
矩阵辅助激光脱/电离质谱成像 (MALDI-MSI) 与被困离子移动性谱学 (TIMS) 结合使用.
应用了综合MALDI-TIMS-MSI技术来分析麦粒内的脂质概况和分布.

主要成果:

麦部分的安装成功实现了,撕裂最小.
添加化显著改善了三糖醇的检测.
马尔迪-蒂姆斯-MSI方法使同位素和异位素脂质的分离和鉴定成为可能.
获得了各种麦脂质的空间分布的准确可视化.

结论:

已经建立了一种新且有效的MALDI-TIMS-MSI麦脂分析技术.
这种方法提高了麦粒中的脂质配置文件的识别和空间分辨率.
该技术有可能发现与麦谷物质量和营养价值相关的生物标志物.

关键词:

异酸盐和异酸盐和异酸盐脂质脂质脂质是一种马尔迪-MSI是什么意思麦麦麦麦兴奋剂的使用兴奋剂这里是 TIMS TIMS 的时间.

更多相关视频

Author Spotlight: Quantification of Complex Lipidomic Samples Using Stable Isotope Labeling

Author Spotlight: Quantification of Complex Lipidomic Samples Using Stable Isotope Labeling

Published on: August 23, 2024

Using a Cyclic Ion Mobility Spectrometer for Tandem Ion Mobility Experiments

Using a Cyclic Ion Mobility Spectrometer for Tandem Ion Mobility Experiments

Published on: January 20, 2022

相关概念视频

Matrix-Assisted Laser Desorption Ionization (MALDI)

Matrix-Assisted Laser Desorption Ionization (MALDI)

Matrix-assisted laser desorption ionization (MALDI) is a powerful analytical technique used in mass spectrometry. It enables the identification and characterization of various biomolecules, including proteins, peptides, nucleic acids, and carbohydrates. MALDI spectrometry is widely employed in biological and medical research, as well as in fields like pharmacology and biochemistry.
The analyte of interest, a biomolecule or a mixture of biomolecules, is mixed with a suitable matrix material. The...

Peptide Identification Using Tandem Mass Spectrometry

Peptide Identification Using Tandem Mass Spectrometry

Tandem mass spectrometry, also known as MS/MS or MS2, is an analytical technique that employs two mass analyzers. Essentially it is a series of mass spectrometers that helps isolate a particular biomolecule and then helps study its chemical properties.
This technique helps gather information regarding the protein from which the peptide was obtained and to study the peptides’ amino acid sequence. Identifying peptides from a complex mixture is an important component of the growing field of...