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Updated: Jul 16, 2025

Gas Chromatography-Mass Spectrometry Paired with Total Vaporization Solid-Phase Microextraction as a Forensic Tool
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Gas Chromatography-Mass Spectrometry Paired with Total Vaporization Solid-Phase Microextraction as a Forensic Tool

Published on: May 25, 2021

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通过直接浸泡固体相微提取和气相色谱-质谱仪在防晒样本中轻松确定色及其衍生物

Andrés J Rascón1, Priscilla Rocío-Bautista1, Laura Palacios-Colón2

  • 1Analytical Chemistry Research Group, Department of Physical and Analytical Chemistry, University of Jaén, Campus las Lagunillas s/n, Jaén 23071, Spain.

Journal of pharmaceutical and biomedical analysis
|September 16, 2023
PubMed
概括

一种新方法可以准确检测防晒中的10种类 (BPs). 这是至关重要的,因为BP是紫外线过器,但可以是变异原体,八烯可能降解为它们.

关键词:
类子 类子 类子直接浸泡固体相微提取 - 微提取气体染色学 质谱学 质谱学防晒可以防晒.

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Gas Chromatography–Mass Spectrometry (GC–MS)

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....
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Upon ionization, aromatic compounds generate a molecular ion that is observed as a prominent peak in their mass spectra. For example, the molecular ion peak for benzene appears at a mass-to-charge ratio of 78, while toluene is observed at a mass-to-charge ratio of 92. The molecular ion benzene is highly stable and does not readily undergo further fragmentation due to the significant amount of energy required to disrupt the aromatic stability of the benzene ring. In contrast, the molecular ion...
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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.
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