Themed collection JAAS HOT Articles 2024

Ensuring reliable elemental analysis in food, cosmetic and pharmaceutical research is a prerequisite to human safety. Here we report on the use of total reflection X-ray fluorescence spectrometry, its state-of the art and challenges in those fields.

Detection of protium, deuterium and tritium using ultrafast LIBS with rapid, and standoff capability in addition to no sample preparation requirement which are crucial to nuclear nonproliferation, safeguards, and security

Nitrogen as alternative carrier gas for LA-ICPMS showed similar sensitivities and quantification capabilities as using helium in combination with a N₂ plasma. The role of the gas and of the ablation cell design on the aerosol structure was studied.

A novel mid-level data fusion method integrating spectral and acoustic signals of laser-induced plasmas was proposed to improve the measurement accuracy of carbon concentrations in flue gas at varying gas temperatures.

This method involves precise trace element determination in X-ray fluorescence (XRF) lithium borate glass prepared from 10 mg extraterrestrial geological samples using femtosecond LA-ICP-MS.

A matrix effect calibration model during SIMS silicon isotope analysis based on the contents of Si, Ca, Al and Mg (SCAM model) in silicate glasses.

The fusion of LIBS spectral data with PAES data improves machining process classification identification accuracy.

We report a tandem ICP-MS/MS method using O₂ gas for chlorine isotopic ratio determinations, with improved accuracy and increased throughput.

As a remote and in situ diagnostic technique for the first wall of tokamaks, laser-induced breakdown spectroscopy (LIBS) has shown promising potential for depth profile analysis of deposition layers on plasma-facing components (PFCs).

In this study, a novel spectral standardization method which can eliminate the influence of plasma morphology was proposed to improve the performance of LIBS.

A highly sensitive Nd isotopic analysis method by multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS) with ultrasound nebulization-dielectric barrier discharge (UNDBD) vapor generation as sample introduction is developed.

A natural chalcopyrite sample, named IGGCcp-1, has undergone rigorous isotopic homogeneity testing and has been identified as a highly promising reference material for in situ micro-analysis of Cu–Fe–S isotopic compositions.

For the traditional Baijiu qualitative analysis problem, a high-precision fast classification method for different dimensional Baijiu based on AS-LIBS combined with Optimized Grid Search Cross-Validation (Opt-GSCV) is proposed.

Simple, efficient, and robust method established in this study will contribute to clarify how tungsten (W) isotopes behave in the Earth system relative to molybdenum (Mo) isotopes.

Cannabis vape liquids from prefilled unused cartridges have been found to contain metal particles.

User-friendly chromatographic procedures using Chelex-100 achieve high recovery and minimize procedural blanks in nickel isotope analysis.

Lead, copper and iron isotopes are precisely measured for the first time in gold matrices owing to an adapted purification protocol that allows the tracing of gold sources from archaeological and historical contexts.

A calibration curve is built on points spread over a range, which is a function of the variance of the blank, instrumental error and heterogeneity.

This article presents an innovative application of kHz regime μLIBS – Laser-Induced Breakdown Spectroscopy for generating detailed compositional maps of geological samples.

A new approach for the elemental and isotopic monitoring of boron via HR CS GFMAS is introduced.

2D imaging of the Rb/Sr age distribution in deformed mica with μm-spatial resolution.

Spatio-temporal dynamics of a PGD, in Ar6.0 at 6 mbar for some of Ar I, Ar II, Cu I, Cu II lines. Analysis of a high current peak during ignition of discharge, excitation and deexcitation processes, development of electron excitation temperature of Ar.

Fourier transform spectrum and its fit with the colored arrows indicating individual hyperfine structure components distinguished by the transition rules.

In TXRF the position-dependent signals were studied for concentric ring structures showing elemental separation between inner and outer rings. The specimens were obtained from picoliter printed micro preparation.

The new purification procedure for V isotope analysis presented in this work is both economical and time-efficient, improving the ability for further investigation of V isotope geochemistry in various geological and environmental systems.

A sensitive and free interference method for the determination of total and labile fractions of Cd, Pb, Cu and Zn in soil after DGT passive accumulation and detection by optical emission spectrometry with an Ar microplasma was validated.

A single-column separation procedure for Sr, Nd, and Sm in small-size samples and high-precision isotope measurements using a TIMS with 10¹³ and 10¹² Ω amplifiers.

Importance of mole or mass fraction representations of concentrations in CF-LIBS.