Wavelength Dependence of fs Laser Ablation Ionisation Mass Spectrometry: a Dedicated Study on NIST SRM 664.

ABSTRACT:

Rationale

Laser ablation mass spectrometry provides fast and direct chemical information of solids with high spatial resolution without the need for complex sample preparation. It has been shown that reducing the laser pulse length below picoseconds improves the quantification of chemical composition measurements of solids. This study compares the impact on chemical quantification of applying femtosecond laser ablation from IR to UV wavelengths to a steel alloy sample from NIST.

Methods

A compact laser ablation ionisation mass spectrometer (LIMS), coupled to a fs laser ablation ion source with a fundamental laser wavelength of 775 nm, is used for the presented mass spectrometric results. The fundamental wavelength is frequency doubled or tripled to 387 and 258 nm, respective

SUBMITTER: Grimaudo V 

PROVIDER: S-EPMC12707028 | biostudies-literature | 2026 Mar

REPOSITORIES: biostudies-literature