通过反应矩阵辅助激光吸附/电离飞行时间质谱法对戈西波尔进行简单,快速的定量检测
Mengzhen Wang1, Ling Ling1, Yujiao Qin2
1Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China.
Journal of the American Society for Mass Spectrometry
|June 10, 2024
概括
使用4-hydrazinoquinazoline (4-HQ) 矩阵的新分析方法提高了gossypol (GSP) 的检测. 这种快速技术提高了食品和医疗应用中GSP分析的灵敏度和选择性.
科学领域:
- 分析化学 分析化学
- 质谱测量质量谱测量
- 食品科学 食品科学 食品科学
背景情况:
- 戈西波尔 (GSP) 分析对食品工业和医疗应用至关重要.
- 现有的GSP分析方法可能缺乏足够的灵敏度或速度.
- 需要为GSP开发快速和选择性的检测工具.
研究的目的:
- 开发一种简单快速的分析方法来检测gossypol (GSP).
- 使用一个反应矩阵,4-hydrazinoquinazoline (4-HQ),用于增强GSP分析.
- 为了使GSP在各种样本中的敏感和选择性量化.
主要方法:
- 采用矩阵辅助激光脱/离子化飞行时间质谱法 (MALDI-TOF MS).
- 使用4-hydrazinoquinazoline (4-HQ) 作为一个反应矩阵来衍生 GSP.
- 优化了GSP检测和量化的实验条件.
主要成果:
- 4-HQ矩阵与GSP的基反应,提高了检测灵敏度和选择性.
- 实现了GSP的0.1μM的低检测极限.
- 在棉花种子样本中,在1-500μM的线性范围内量化GSP,高精度 (97.88-105.80%的回收率).
结论:
- 使用4-HQ开发的MALDI-TOF MS方法是GSP确定的一种可靠而敏感的工具.
- 这种方法提供了一种快速和选择性的方法,用于在现实世界样本中分析GSP.
- 这些发现支持这种方法在食品工业和医学诊断中的应用.
相关概念视频
Matrix-Assisted Laser Desorption Ionization (MALDI)
301
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...
The analyte of interest, a biomolecule or a mixture of biomolecules, is mixed with a suitable matrix material. The...
301
MALDI-TOF Mass Spectrometry
4.8K
Mass spectrometry is a powerful characterization technique that can identify and separate a wide variety of compounds ranging from chemical to biological entities, based on their mass-to-charge ratio (m/z). The instruments that allow this detection, known as mass spectrometers, have three components: an ion source, a mass analyzer, and a detector. These spectrometers differ based on the nature of their ion source and analyzers.
Matrix-assisted laser desorption ionization (MALDI) is a commonly...
Matrix-assisted laser desorption ionization (MALDI) is a commonly...
4.8K
Gas Chromatography–Mass Spectrometry (GC–MS)
4.1K
Gas chromatography–mass spectrometry (GC–MS) is the combination of analytical techniques of gas chromatography and mass spectrometry in a single instrument for analyzing a mixture of compounds. The gas chromatograph separates the compounds in the mixture, and the mass spectrometer analyzes each compound separately to determine the molecular masses and molecular structures.
A gas chromatograph consists of a long, narrow capillary column with a polysiloxane coating on the inner wall....
A gas chromatograph consists of a long, narrow capillary column with a polysiloxane coating on the inner wall....
4.1K
Mass Spectrometry: Complex Analysis
747
Mass spectrometry is an important technique for the identification of pure compounds. However, it has some limitations for the analysis of complex mixtures, often due to excessive fragmentation making the spectrum too complicated to decipher. Mass spectrometry can be combined with suitable separation methods in sequence, forming hyphenated methods, which are useful in the analysis of complex mixtures.
GC–MS is a powerful hyphenated method commonly used in forensics and environmental...
GC–MS is a powerful hyphenated method commonly used in forensics and environmental...
747


