Rapid Analysis of Soil Samples by Laser Ionization Mass Spectrometry

Xu, Zhouyi; Hang, Le; Hang, Wei; Huang, Benli

doi:10.46770/as.2020.04.001

Cited by 4 publications

(6 citation statements)

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“…Rapid detection of multiple elements in geochemical standard reference soils with little or no sample preparation was conducted with the semi-quantitative ability covering a range of 6 decades of dynamic detection. After obtaining the RSCs, the measured concentrations of all elements were closer to their certified values [181]. With a similar goal, other studies on geological samples were conducted by IR fs-LMS for fluences at about 1 J/cm 2 [150].…”

Section: Geological and Geochemical Samplessupporting

confidence: 51%

Current Progress in Femtosecond Laser Ablation/Ionisation Time-of-Flight Mass Spectrometry

et al. 2021

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The last decade witnessed considerable progress in the development of laser ablation/ionisation time-of-flight mass spectrometry (LI-TOFMS). The improvement of both the laser ablation ion sources employing femtosecond lasers and the method of ion coupling with the mass analyser led to highly sensitive element and isotope measurements, minimisation of matrix effects, and reduction of various fractionation effects. This improvement of instrumental performance can be attributed to the progress in laser technology and accompanying commercialisation of fs-laser systems, as well as the availability of fast electronics and data acquisition systems. Application of femtosecond laser radiation to ablate the sample causes negligible thermal effects, which in turn allows for improved resolution of chemical surface imaging and depth profiling. Following in the footsteps of its predecessor ns-LIMS, fs-LIMS, which employs fs-laser ablation ion sources, has been developed in the last two decades as an important method of chemical analysis and will continue to improve its performance in subsequent decades. This review discusses the background of fs-laser ablation, overviews the most relevant instrumentation and emphasises their performance figures, and summarizes the studies on several applications, including geochemical, semiconductor, and bio-relevant materials. Improving the chemical analysis is expected by the implementation of laser pulse sequences or pulse shaping methods and shorter laser wavelengths providing current progress in mass resolution achieved in fs-LIMS. In parallel, advancing the methods of data analysis has the potential of making this technique very attractive for 3D chemical analysis with micrometre lateral and sub-micrometre vertical resolution.

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Section: Geological and Geochemical Samplessupporting

confidence: 51%

Current Progress in Femtosecond Laser Ablation/Ionisation Time-of-Flight Mass Spectrometry

et al. 2021

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“…This study was performed on an in-house-built buffer gas-assisted high irradiance laser ionization time-of-flight mass spectrometer, which has been described previously. 19 Briefly, a nanosecond laser with a pulse width of 8 ns, wavelength of 532 nm, frequency of 20 Hz, and irradiance of 8 × 10 10 W/cm 2 (Dawa-100, Beamtech Optronics, China) was used in this study. The ablation laser was focused using an air-spaced doublet lens (ACA254-075-532; Thorlabs Inc., Newton, NJ, U.S.A) at a working distance of 66.2 mm.…”

Section: Methodsmentioning

confidence: 99%

“…Ten mass spectra of the corresponding single laser shot were accumulated to obtain an accurate quantitative result for the sampling point. 19 The spectrum of each point was obtained in a prescribed order, and then the elemental image was created by combining the spatial and chemical information. The elemental composition of the rocks in the fossil preservation surrounding the Lycoptera was also analyzed, and six representative areas of the rock matrix, numbered 1-6, were selected for analysis.…”

Section: Methodsmentioning

confidence: 99%

“…12,18 Meanwhile for SIMS, although it has a high sensitivity and spatial resolution, it is flawed in its quantitative capability and has stringent requirements for sample morphology. 19 Buffer gas-assisted high-irradiance laser ionization time-offlight mass spectrometry (BGA-LI-TOFMS) is a potential method for studying fossil materials. Several pioneering experiments have demonstrated its ability to perform semi-quantitative analysis of elements in geological samples without the requirement of standard reference materials.…”

Section: Introductionmentioning

confidence: 99%

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Lycoptera Fossil Elemental Imaging And Paleo-Environment Research Via Laser Ionization Time-Of-Flight Mass Spectrometry

Hang¹

2023

At.Spectrosc.

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Buffer gas-assisted high-irradiance laser ionization time-of-flight mass spectrometry (BGA-LI-TOFMS) was used to determine the elemental distribution of Lycoptera fossils from the Dawangzhangzi Bed of the Yixian Formation in Liaoning Province, China. The Sr, Ba, and Pb images of the Lycoptera fossil highlight the fine structure of the skeleton, and the distribution of Fe and Si provides data regarding the preservation pattern and nature of pyritization in the Jehol Biota. The enrichment of toxic substances such As and H2S may be one of the reasons for the cluster mortality of Lycoptera. Meanwhile, the elemental analysis of the rocks in the fossil preservation shows that the paleoclimate indices MgO/CaO and Sr/Cu indicate dry and hot climatic conditions at that time. Meanwhile, the paleosalinity indicators (m value and Sr/Ba ratio) indicate a semi-saline to slightly saline water body. The paleoredox environment indicators (Th/U and V/(V+Ni) ratio) suggest an anaerobic environment with weak stratification and H2S in the bottom water. Thus, the elemental imaging and analysis of the Lycoptera fossil suggest that the organisms of Jehol Biota were preserved in the anoxic water environment and the toxic effect of hydrogen sulfide. Overall, BGA-LI-TOFMS is an adaptable technique for acquiring comprehensive geochemical information on fossils.

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“…However, considering a high vacuum for the ion source, a large initial energy and wide energy dispersion caused by high laser radiance might lead to multiply charged ions and polyatomic ions interferences . To solve this problem, Hang and co-workers recently established a buffer-gas-assisted LIMS instrumentation enabling direct solid sampling and semiquantitative analysis of more than 60 elements ranging from 0.3 mg/kg (Be) to 18.6% (Al) levels in soil samples. LIMS was proven a reliable semiquantitative method for the rapid microanalysis of metallic and nonmetallic elements in solids, which is valuable to supervise the harmful substances for evaluation of soil contamination.…”

Section: Sensitivity and Multielemental Analysis In Agrometallomicsmentioning

confidence: 99%

Analytical Methodologies for Agrometallomics: A Critical Review

Liu

Chang

et al. 2021

J. Agric. Food Chem.

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Agrometallomics, as an independent interdiscipline, is first defined and described in this review. Metallic elements widely exist in agricultural plants, animals and edible fungi, seed, fertilizer, pesticide, feedstuff, as well as the agricultural environment and ecology, and even functional and pathogenic microorganisms. So, the agrometallome plays a vital role in molecular and organismic mechanisms like environmetallomics, metabolomics, proteomics, lipidomics, glycomics, immunomics, genomics, etc. To further reveal the inner and mutual mechanism of the agrometallome, comprehensive and systematic methodologies for the analysis of beneficial and toxic metals are indispensable to investigate elemental existence, concentration, distribution, speciation, and forms in agricultural lives and media. Based on agrometallomics, this review summarizes and discusses the advanced technical progress and future perspectives of metallic analytical approaches, which are categorized into ultrasensitive and high-throughput analysis, elemental speciation and state analysis, and spatial- and microanalysis. Furthermore, the progress of agrometallomic innovativeness greatly depends on the innovative development of modern metallic analysis approaches including, but not limited to, high sensitivity, elemental coverage, and anti-interference; high-resolution isotopic analysis; solid sampling and nondestructive analysis; metal chemical species and metal forms, associated molecular clusters, and macromolecular complexes analysis; and metal-related particles or metal within the microsize and even single cell or subcellular analysis.

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Rapid Analysis of Soil Samples by Laser Ionization Mass Spectrometry

Cited by 4 publications

References 0 publications

Current Progress in Femtosecond Laser Ablation/Ionisation Time-of-Flight Mass Spectrometry

Current Progress in Femtosecond Laser Ablation/Ionisation Time-of-Flight Mass Spectrometry

Lycoptera Fossil Elemental Imaging And Paleo-Environment Research Via Laser Ionization Time-Of-Flight Mass Spectrometry

Analytical Methodologies for Agrometallomics: A Critical Review

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