相关实验视频

Updated: Jul 15, 2025

Sample Preparation for Probe Electrospray Ionization Mass Spectrometry
05:47

Sample Preparation for Probe Electrospray Ionization Mass Spectrometry

Published on: February 19, 2020

9.5K

塑料探头电喷射电离化质谱仪是为快速指纹分析生物样本而开发的,不需要预处理

Shuanglong Wang1,2,3, Shan Shan4, Jian Yang3,5

  • 1Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, 418 Guanglan Road, Nanchang, 330013, China.

Analytical and bioanalytical chemistry
|September 27, 2023
PubMed
概括

一种新型的塑料探针使直接电喷离子质谱 (ESI-MS) 能够对各种未经处理的样品进行快速,灵敏的分析. 这种具有成本效益的ESI-MS方法比传统的生物和化学分析技术提供了更好的性能.

关键词:
直接分析是一种直接分析.电子喷雾电离 (ESI) 是一种电子喷雾电离技术.质谱测量质量谱测量塑料探头的探测器快速选 快速选 快速选

更多相关视频

Rapid High-throughput Species Identification of Botanical Material Using Direct Analysis in Real Time High Resolution Mass Spectrometry11:14

Rapid High-throughput Species Identification of Botanical Material Using Direct Analysis in Real Time High Resolution Mass Spectrometry

Published on: October 2, 2016

11.6K
Sheathless Capillary Electrophoresis–Mass Spectrometry for Metabolic Profiling of Biological Samples07:46

Sheathless Capillary Electrophoresis–Mass Spectrometry for Metabolic Profiling of Biological Samples

Published on: October 1, 2016

11.8K

相关概念视频

Electrospray Ionization (ESI) Mass Spectrometry01:12

Electrospray Ionization (ESI) Mass Spectrometry

Higher molecular weight biomolecules are nonvolatile compounds that may decompose before ionizing or vaporizing during mass analysis with conventional electron impact ionization methods. Accordingly, electrospray ionization (ESI) is the favored method for vaporizing and ionizing biomolecules as it circumvents rapid fragmentation and enables the recording of mass signals for the entire biomolecule.
ESI utilizes electrical energy to transfer ions from the liquid phase of the sample into the...
908
MALDI-TOF Mass Spectrometry01:19

MALDI-TOF Mass Spectrometry

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...
4.9K
Electrophoresis: Overview01:20

Electrophoresis: Overview

Electrophoresis is a powerful analytical separation technique that relies on the differential migration of charged species when subjected to an electric field. The core strength of electrophoresis lies in its ability to separate high-molecular-weight species in complex mixtures. It has found widespread use in biochemistry, molecular biology, and analytical chemistry, allowing the separation of compounds like amino acids, nucleotides, carbohydrates, and proteins with excellent resolution.
There...
2.1K
Mass Spectrometry: Complex Analysis01:21

Mass Spectrometry: Complex Analysis

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...
818
Capillary Electrophoresis: Instrumentation01:20

Capillary Electrophoresis: Instrumentation

Capillary electrophoresis instrumentation typically consists of several key components. A high-voltage power supply generates the electric field necessary for the separation by connecting to an anode (the positively charged electrode) and a cathode (the negatively charged electrode) located in buffer reservoirs at each end of the capillary tube. The system includes a sample vial, a fused silica capillary tube coated with polyimide for mechanical strength through which the sample components...
260