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Updated: Jul 7, 2025

Imaging Metals in Brain Tissue by Laser Ablation - Inductively Coupled Plasma - Mass Spectrometry LA-ICP-MS
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Published on: January 22, 2017

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在现场使用激光除四极电感联等离子体质谱的同位素分析的开发

Xuefei Fan1,2, Corliss Kin I Sio1, Xu Chu1

  • 1Department of Earth Sciences, University of Toronto, Toronto, Ontario, Canada.

Rapid communications in mass spectrometry : RCM
|December 21, 2023
PubMed
概括

激光切除四极ICPMS为同位素分析提供了一种可行的方法,特别是对于富含的样本. 虽然不如SIMS或LA-MC-ICPMS精确,但足以检测出显著的同位素变化.

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In inductively coupled plasma–mass spectrometry (ICP–MS), an inductively coupled plasma (ICP) torch is used as an atomizer and ionizer. Solid samples are dissolved and volatilized before being introduced into the high-temperature argon plasma, while solution samples are nebulized and passed through the high-temperature argon plasma. Plasma dissociates the analytes and ionizes their component atoms to form a mixture of positive ions and molecular species. The positive ions are then...
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Inductively coupled plasma (ICP) is the most widely used plasma source in atomic emission spectroscopy (AES), also known as Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). The ICP source, or torch, consists of three concentric quartz tubes with argon gas flowing through them. A spark from a Tesla coil initiates the ionization of argon, generating a high-temperature plasma.
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AES is a powerful analytical technique, especially effective when used with plasma sources, producing abundant spectra in characteristic emission lines. The Inductively Coupled Plasma (ICP), in particular, yields superior quantitative analytical data due to its high stability, low noise, low background, and minimal interferences under optimal experimental conditions. However, newer air-operated microwave sources are emerging as promising alternatives that could be more cost-effective than...
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