Themed collection JAAS HOT Articles 2023

Analysts can balance sensitivity and selectivity in quadrupole-based ICP-MS. In some scenarios, giving up unit mass resolution may into improve figures of merit.

This review paper will present and critically discuss the evolution of the calibration-free LIBS (CF-LIBS) method and some of its new applications that appeared since the last extensive review on the topic, which was published more than 10 years ago.

Further mitigation: CO₂ is a better reaction gas than O₂ to overcome isobaric/polyatomic interferences caused by Zr and Ge for ⁹⁰S analysis by ICP-MS/MS. The method detection limit was 0.978 pg L⁻¹ (5 Bq L⁻¹) in 10 mL urine, with a reasonable throughput (∼6 h for 12 samples).

The effect of ambient humidity on the LIBS spectra of copper samples was explored. The Cu I line intensity decreased with humidity at low laser energy and increased with humidity at high energy.

A sub-band k-means clustering method was used for laser-induced plasma spectral analysis to achieve accurate identification and classification of high explosives and organic materials.

Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) is a method with high potential to visualize the distribution of elements in different samples, including a variety of organisms.

The determination of rare-earth element (REE) mass fractions is of great significance in various fields including materials science, geology, ecotoxicology, environmental safety and human health.

A single method was developed for the determination of As and Hg in dietary supplements by CVG-MIP OES using a multimode sample introduction system (MSIS).

A large heated volume (22 mL) digestion coil for high pressure flow digestion was developed. By using computer simulation of the microwave field, the coil geometry was optimized for uniform absorption of microwave radiation along the digestion coil.

Phytoliths, which are noncrystalline particles of amorphous silica that form inside plant cells, contribute to the global carbon cycle through their ability to occlude organic carbon.

The one-column method to purify Cu–Fe–Zn for biological isotope analysis provides comprehensive isotope information for biological individuals.

Performing parameter optimization and variable selection simultaneously in Fourier transform infrared and laser-induced breakdown spectroscopy data fusion.

A single-stage column separation method based on an anion exchange resin column is developed to purify Cd from geological and environmental materials for high-precision determination of Cd isotopes by double spike MC-ICP-MS.

A novel spectral standardization method was proposed based on plasma image-spectrum fusion (SS-PISF) to improve the spectral stability.

Three zircon synthesis techniques (synthesis, high-temperature and high-pressure sintering and fast hot-pressing sintering) for the preparation of reference materials for Hf isotope analysis of zircon by LA-MC-ICP-MS were compared.

Use of LIMS for determination of Nd in the presence of Sm.

Analysis of PbBi eutectic after separation of matrix elements by a simple acid-induced surfactant assisted dispersive liquid–liquid microextraction procedure is reported.

Assisted by laser ablation (LA) inductively coupled plasma mass spectrometry (ICPMS) analytical techniques, calcite is now accepted as an important U–Pb dating mineral for application to various issues in geology.

IEC–LIBS could rapidly and sensitively detect different valence states of Cr in water and soil.

Tube furnace extraction combined with ICP-MS/MS for low-level ¹²⁹I measurement in decommissioning samples, combined with matrix modification for improved sensitivity.

An LIBS-XRF coal quality analyzer was developed. Modeling based on PCA and PLS methods, and industrial testing was completed. The measurement repeatability of model for industrial indicators meets the requirements of national standards.

A two-stage semi-supervised machine learning approach was developed as a robust method to classify cerium-rich engineered, incidental, and natural nanoparticles measured by spICP-TOFMS.

The combination of a Bessel beam and LIBS is an effective method for rapidly detecting uneven samples in industry, which has higher accuracy and stability under fewer spectra.

Uranium interference is a major problem in conventional ²³⁸Pu analysis. In RIMS, a slight detuning of the resonance laser extinguishes the Pu signal so that the ²³⁸U interference can be accurately quantified and subtracted.

We investigated the performance of nitrogen microwave inductively coupled atmospheric-pressure plasma mass spectrometry (MICAP-MS) under matrix effects and its applicability to trace element analysis in steels.

Automatic Kr separation apparatus and atom counting enable online monitoring of atmospheric krypton-85 with hourly time resolution.

Laser-induced breakdown spectroscopy (LIBS) has the advantages of on-line, rapid and multi-element synchronous detection.

Development and validation of a new precise method for measuring mass-dependent Te isotope composition of meteorites and terrestrial samples using the double spike technique and MC-ICP-MS.

A methodology for cadmium determination at ultratrace levels based on chemical vapour generation (CVG) coupled to atomic fluorescence spectrometry (AFS) was developed.

Gas cell interactions of 73 elements with nitrous oxide (N₂O) have been evaluated using inductively coupled plasma tandem mass spectrometry (ICP-MS/MS). Recommendations for the reduction of interferences are provided.

A simple and ultrasensitive method for detecting Pb²⁺ using resin-enrichment combined with laser-induced breakdown spectroscopy assisted by laser-induced fluorescence.

We report a compact laboratory-based, high resolution X-ray emission spectrometer installed in a glovebox for simultaneous measurement of phosphorus Kα and Kβ spectra of air-sensitive materials.

Fast and efficient (resonant) X-ray emission spectroscopy setup for the electronic structure at lower mantle conditions: high spin in laser-heated FeCO₃ and a two-step spin transition in pressurized Fe₂O₃ with increasing valence to core intensity.

A spatial heterodyne spectrometer (SHS) was combined with a flame atomic absorption (FAA) setup to reveal the analytical potential of SHS to be used as a tool for high-resolution atomic absorption studies.

The ambient temperature affects the electron density in the laser-induced plasma, which is reflected as changes in the atomic spectral linewidths. A thermometry technique for the gas flow field under constant pressure is proposed.

Non-quantitative Hg cold-vapor generation can compromise the accuracy of Hg isotope analysis, and it should be monitored and optimized by performing matrix separation, adopting the design of gas–liquid separators, and tuning the sample uptake rate.

Marcasite (FeS₂, orthorhombic) is a dimorph of pyrite (FeS₂, isometric), which has been reported in many kinds of ore deposits and sedimentary rocks.

Fiber lasers have great advantages in long-time operations and stable power, showing great potential in laser-induced breakdown spectroscopy (LIBS) for industrial online diagnosis.

The PAS-synthesized sphalerite has a homogeneous sulfur isotopic composition and is suitable to be a matrix-matched reference material for in situ S isotope measurements of sphalerite.

Precise and accurate measurement of ²⁰⁴Pb-based isotopic ratios by quadrupole ICP-MS at the part-per-billion concentration level was achieved.

This study proposes a new analytical protocol for in situ Sn isotope analysis of cassiterite using a nanosecond laser ablation system and a natural cassiterite reference material.

Solving image registration problem in micro-X-ray uorescence spectrometry (µ-XRF) is a first step towards application of multi-image super-resolution technique.

Inductively coupled plasma-optical emission spectra were modeled with partial least squares regression models to quantify trace elements in uranium (20–5000 μg per g U) without chemical separations or matrix matched calibration standards.

Self-absorption correction of LIBS spectra using the Planck function or equivalently the plasma temperature.

The ratio of ionic to atomic lines with surface rigidity implying the feasibility of characterizing soft surface mechanical properties using LIBS.

Determination of the HOD of EMs based on LIBS with a relative prediction error of less than 5%. The relevant emission lines of elements C, H, O, and N are dominant in the model rather than the spectral features of some impurity elements.

Multi-element signals could be dramatically enhanced and better quantitative analysis performance could be obtained by laser ablation assisted ultraviolet LEAF technique with minimal sample destruction.

Creative use of 3D printing to create analytical standards greatly increased the sample homogeneity and the accuracy of the desired concentration.

In this report, we have evaluated the use of laser textured silicon substrates for uniform solidification of water based samples for their analysis using laser induced breakdown spectroscopy (LIBS) with good repeatability.

Accurate results with analytical solution to standard concentration ratios less than 10.

Numerous metallic lines are recorded from atmospheric pressure μs-pulsed NTC discharge in argon and an argon–hydrogen mixture to measure T_e and N_e in the cathode region of plasma.

In this study, we use laser ablation MC-ICP-MS as a rapid sampling tool to characterize the isotopic composition of uranium in μm-sized uranium oxide particles.

Post-plasma chemical ionization using Sc-based reagent ions improves the robustness of elemental F detection while maintaining high sensitivity.

A novel confocal controlled Raman-LIBS hybrid microscope, with a high spatial resolution and antidrift property, has been developed. The microscope provides valuable compositional and structural analysis and is a powerful tool to study unknown minerals.

A systematic approach towards high resolution quantitative multi-element imaging of biological tissue by ICP-TOFMS.

A nitrogen plasma source has been characterized and optimized for the analysis of aqueous solutions with quadrupole mass spectrometry. Modifications of the vacuum interface revealed that plasma expansion is similar to that in a conventional Ar-ICP.

This study proposes a new synthesized protocol for cassiterite reference material for in situ Sn isotope measurement using fsLA-MC-ICP-MS.

This study proposes a new robust protocol for stable Sn isotope measurements using the double-spike method in geological reference materials with a range of sample matrices.

An accurate method for ultratrace rare earth elements quantification in highly saline water with small volume sample consumption by laser ablation solution sampling ICP-MS.

We report the capabilities of an inductively coupled plasma time-of-flight mass spectrometry (ICP-TOFMS) instrument for single-droplet and single-particle analysis.

In this work, an analytical methodology based on nebulization-assisted laser-induced breakdown spectroscopy for the analysis of fluorine in aqueous solutions via CaF molecular emission was developed and successfully tested with real mouthwash samples.

The whole blood samples were analyzed by LA-ICP-MS with cryogenic ablation cell, which avoid droplet splashing during the laser ablation process and improve analytical precision significantly.

In this study, two methods are investigated to reduce the adverse effects on spectral quality that can occur when investigating non-conductive samples with a miniature laser ablation ionisation mass spectrometer.

In this study, three analytical procedures for the determination of inorganic constituents in mineral water were performed.

A new ETV system coupled to ICP-MS was developed to determine Hg at the ultra-trace level in bioresorbable calcium phosphate-based ceramic materials.

New software for X-ray microcalorimeter spectrometers' pulse processing and spectral fitting allows fast access to all lines fully resolved M spectra. A XAHRM-Lab single pixel MMC based system will provide these for PIXE and PIXE induced XRF.