Accurate Determination of Boron Content in Halite by ICP-OES and ICP-MS

Boron element is widely distributed in different geologic bodies, and there are important geo-chemical applications in earth science. Halite is a common mineral found in sediment basin. However there is no good method to accurately measure the boron content in halite, which is mainly because Inductively Coupled Plasma Optical Emission Spectrometer (ICP-OES) and Inductively Coupled Plasma Mass Spectrometer (ICP-MS) are limited by the high salt matrix interference and the instrument detection limit. Thus enriching the boron element and removing the matrix interference are necessary before the measuring. In this paper, Amberlite IRA 743 boron-specific resin was applied to enrich the boron element and remove most of the high-salt matrix. The strong acid cation resin (Dowex 50 W×8, 200-400 mesh, USA) and weak-base anion resin (Ion Exchanger II, Germany) were mixed with equal volume, which could remove the foreign ions completely: meanwhile, the relative content of boron in the solution reached above 98%, and the recoveries ranged from 97.8% to 104%. 208.900 nm was chosen as the detection wavelength for ICP-OES, and the detection identification and quantification limits were 0.006 mg·L−1 and 0.02 mg·L−1, respectively. 11B was chosen as the measuring element for ICP-MS, and the detection identification and quantification limits were severally 0.036 mg·L−1 and 0.12 mg·L−1. The relative standard deviations ranged from 1.4% to 3.4% through six replicates under different salinities. Therefore, the process could be regarded as a feasible method to measure boron content in halite by ICP-OES and ICP-MS.

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Determination of the Trace Element Contents of Fruit Juice Samples by ICP OES and ICP-MS

Brazilian Journal of Analytical Chemistry ◽

10.30744/brjac.2179-3425.ar-87-2021 ◽

2021 ◽

Vol 9 (35) ◽

Author(s):

Max José de Souza ◽

María Carmen Barciela-Alonso ◽

Manuel Aboal-Somoza ◽

Pilar Bermejo-Barrera

Keyword(s):

Inductively Coupled Plasma ◽

Toxic Elements ◽

Essential Elements ◽

Fruit Juices ◽

Emission Spectrometry ◽

Good Precision ◽

Icp Oes ◽

Inductively Coupled ◽

Icp Ms ◽

Relative Standard

Fruit juices were analysed for their contents in a series of essential and toxic elements (Al, As, Ca, Cd, Co, Cr, Cu, Fe, Mg, Mn, Na, Ni, Pb, V, Sb, Mo and Zn). Samples were subjected to microwave-assisted acid digestion (HNO3/H2O2), and analytes were determined by inductively coupled plasma optical emission spectrometry (ICP-OES), in axial mode, or by inductively coupled plasma mass spectrometry (ICP-MS), with kinetic energy discrimination, using 103Rh and 89Y as internal standards. The methods were validated, showing good precision (relative standard deviations < 10%), linearity and mean analytical recovery values (89 to 103%). The ICP-OES instrumental limits of detection (LODs) were between 0.3 μg L-1 (for Mg) and 1.5 μg L-1 (for Ca), whereas ICP-MS instrumental LODs varied from 2 ng L-1 (for Co, Mo and V) to 5.7 μg L-1 (for Na). Some toxic elements (As and Sb) were not detected in the fruit juices analyzed, Cd concentrations were below the maximum permitted level established by Brazilian and European regulations and only in one sample the Pb concentration (61.7 µg L-1) exceeded current legal limits. Besides, essential elements such as Ca, Mg and Na were in high concentrations in the samples analyzed.

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Alternative Approaches Applied to Inductively Coupled Plasma Techniques: Multi‑Flow and Two-Flow Calibration

Journal of the Brazilian Chemical Society ◽

10.21577/0103-5053.20200235 ◽

2021 ◽

Author(s):

Raquel Machado ◽

Ana Beatriz Silva ◽

Daniel Andrade ◽

Fernanda Pinheiro ◽

Charles Williams ◽

...

Keyword(s):

Inductively Coupled Plasma ◽

Gas Flow ◽

Linear Models ◽

Matrix Effects ◽

Analytical Signal ◽

Emission Spectrometry ◽

Icp Oes ◽

Inductively Coupled ◽

Icp Ms ◽

Relative Standard

Multi-flow calibration (MFC) is based on monitoring the analytical signal from a single calibration standard solution at several different nebulization gas flow rates (Q), which normalizes plasma conditions and minimizes matrix effects. In the present study, MFC was evaluated, for the first time, applied to inductively coupled plasma optical emission spectrometry (ICP OES) and inductively coupled plasma mass spectrometry (ICP-MS) to analyze different and complexmatrix samples. Al, As, Cd, Cr, Cu, Mn, Pb, and Zn were determined by ICP OES, while As, Cd, Co, Cu, Hg, Mo, Mn, Ni, Se, Sb, Pb, and V were determined by ICP-MS. MFC results were compared with those obtained using external standard calibration (EC) for both techniques and in all cases, MFC showed equal or superior accuracy (recoveries between 80-120%) compared to EC, and lower relative standard deviation (RSDs ≤ 10%). Several tests were also performed using only two nebulization gas flows to build linear models for calibration (called two-flow calibration, TFC) and the accurate results (recoveries ranged from 80 to 110% for ICP OES and from 81 to 102% for ICP-MS) suggests that this strategy can be also applied, resulting in a method with high sample throughput.

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Germanium determination in environmental object by the method of mass spectrometry with inductively coupled plasma

Ukrainian Chemistry Journal ◽

10.33609/0041-6045.85.4.2019.110-113 ◽

2019 ◽

Vol 85 (4) ◽

pp. 110-113

Author(s):

Olexandr Ponomarenko ◽

Anatolyi Samchuk ◽

Kateryna Vovk ◽

Igor Shvaika ◽

Ganna Grodzinskaya

Keyword(s):

Mass Spectrometry ◽

Sample Preparation ◽

Inductively Coupled Plasma ◽

Microwave Field ◽

Antitumor Effects ◽

Inductively Coupled ◽

Ms Analysis ◽

Icp Ms ◽

Relative Standard

The analytical technologies of sample preparation of rocks and mushrooms using the microwave field for the determination of germanium by the method of mass spectrometry with inductively coupled plasma (ICP-MS analysis) have been developed. Germanium is a rare element. Germanium is homology of silicon and carbon. To date, the definition of low content of germanium in geological objects is a rather complex analytical task, which requires its concentration - extraction, co-precipitation, ion exchange. At present, the harmonious combination of the method of natural objects decomposition in the microwave field and germanium determination using ICP-MS analysis is particularly promising. Sample preparation of silicate rocks for ICP-MS determination of germanium was carried out by decomposition in a mixture of hydrofluoric, phosphate and nitric acids (5: 5: 2) in a microwave oven program at 240°C for 30 min. Sample preparation of mushrooms for ICP-MS germanium determination was carried out according to the following scheme. Initially, the dried sample was sealed in the presence of CaO, after dissolving it in a mixture of HNO3+HF+H3PO4 (6:6:1). Ge solution was extracted by Nazarenko V.A. extraction method. The developed analytical schemes have made it possible to significantly reduce the duration and labor intensity of sample preparation. The obtained solutions were analyzed using an inductively coupled plasma mass spectrometer. The developed method for determining germanium by ICP-MS analysis has been successfully tested on standard rock samples. The obtained results are in accordance with the accepted attribute, the relative standard deviation Sr ranges from 0.7-0.9. The data on the content and distribution of germanium in the Boletales fungi are obtained. They indicate wild mushrooms contain high levels of germanium, especially Boletus and Mushroom biospores. These studies are necessary because the essential properties of germanium and its compounds attract special attention of scientists today. Complementary Ge compounds which have hypotensive, bactericidal, antiviral and antitumor effects have already been synthesized.

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Arsenic quantification techniques and ISO/IEC 17025 accreditation in Brazil

Revista Brasileira de Gestão Ambiental e Sustentabilidade ◽

10.21438/rbgas.061413 ◽

2019 ◽

Vol 6 (14) ◽

pp. 803-817

Author(s):

Jefferson Luiz Antunes Santos ◽

Jader Galba Busato ◽

Rodrigo de Almeida Heringer ◽

Juscimar da Silva ◽

Leonardo Barros Dobbss

Keyword(s):

Atomic Absorption Spectrometry ◽

Atomic Absorption ◽

Inductively Coupled Plasma ◽

Hydride Generation ◽

Absorption Spectrometry ◽

Emission Spectrometry ◽

Icp Oes ◽

Analytical Technique ◽

Inductively Coupled ◽

Icp Ms

The importance of arsenic (As) quantification in environmental compartments is due to its risks to ecosystems and public health. There are reports of high concentrations of this metalloid in Brazil and technological differences between states are observed. The objective of this work was to present and discuss current scenarios of accreditation and compare the limit of quantification (LOQ) of As by analytical technique in Brazil. Data from accredited laboratories were collected on Inmetro website and in state metrological networks and then grouped and analyzed by state, matrix and analytical technique. There are large discrepancies between the number of laboratories per state and a good correlation with gross domestic product (GDP). Almost all laboratories have a LOQ less than the environmental limits. The observed list of techniques sorted from lowest to highest LOQ values is: for liquid samples ICP MS (inductively coupled plasma mass spectrometry), ET AAS (electrothermal atomic absorption spectrometry), HG AAS (hydride generation combined with atomic absorption spectrometry) or HG ICP OES (hydride generation combined with inductively coupled plasma optical emission spectrometry) and UV VIS (visible ultraviolet spectroscopy); for solids samples HG ICP OES, ICP MS, HG AAS, ET AAS and FAAS (flame atomic absorption spectrometry); and for bioindicators ICP MS, HG ICP OES. Analysis of As species is accredited in only one laboratory, but does not include all species.

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Determination of Arsenic, Cadmium, Mercury, and Lead by Inductively Coupled Plasma/Mass Spectrometry in Foods after Pressure Digestion: NMKL Interlaboratory Study

Journal of AOAC International ◽

10.1093/jaoac/90.3.844 ◽

2007 ◽

Vol 90 (3) ◽

pp. 844-856 ◽

Cited By ~ 83

Author(s):

Kaare Julshamn ◽

Amund Maage ◽

Hilde Skaar Norli ◽

Karl H Grobecker ◽

Lars Jorhem ◽

...

Keyword(s):

Mass Spectrometry ◽

Inductively Coupled Plasma ◽

Method Performance ◽

Inductively Coupled ◽

Icp Ms ◽

Relative Standard ◽

Limit Of Quantitation ◽

Plasma Mass Spectrometry ◽

Standard Deviations

Abstract Thirteen laboratories participated in an interlaboratory method performance (collaborative) study on a method for the determination of arsenic, cadmium, mercury, and lead by inductively coupled plasma/mass spectrometry (ICP/MS) after pressure digestion including the microwave heating technique. Prior to the study, the laboratories were able to practice on samples with defined element levels (pretrial test). The method was tested on a total of 7 foodstuffs: carrot puree, fish muscle, mushroom, graham flour, simulated diet, scampi, and mussel powder. The elemental concentrations in mg/kg dry matter (dm) ranged from 0.0621.4 for As, 0.0328.3 for Cd, 0.040.6 for Hg, and 0.012.4 for Pb. The materials used in the study were presented to the participants as blind duplicates, and the participants were asked to perform single determinations on each sample. The repeatability relative standard deviations (RSDr) for As ranged from 3.8 to 24%, for Cd from 2.6 to 6.9%, for Hg from 4.8 to 8.3%, and for Pb from 2.9 to 27%. The reproducibility relative standard deviations (RSDR) for As ranged from 9.0 to 28%, for Cd from 2.8 to 18%, for Hg from 9.9 to 24%, and for Pb from 8.0 to 50%. The HorRat values were less than 1.5 for all test samples, except for the determination of Pb in wheat flour at a level close to the limit of quantitation (0.01 mg/kg dm). The study showed that the ICP/MS method is satisfactory as a standard method for elemental determinations in foodstuffs.

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Inductively coupled plasma mass spectrometry (ICP-MS) and inductively coupled plasma optical emission spectrometer (ICP-OES)-based discrimination for the authentication of tea

Food Control ◽

10.1016/j.foodcont.2020.107735 ◽

2020 ◽

pp. 107735

Author(s):

Hong-lin Liu ◽

Qing Meng ◽

Xin Zhao ◽

Yu-long Ye ◽

Hua-rong Tong

Keyword(s):

Mass Spectrometry ◽

Inductively Coupled Plasma ◽

Optical Emission ◽

Icp Oes ◽

Inductively Coupled ◽

Icp Ms ◽

Plasma Mass Spectrometry ◽

Optical Emission Spectrometer

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Advantages, drawbacks and applications of mixed Ar–N2 sources in inductively coupled plasma-based techniques: an overview

Analytical Methods ◽

10.1039/c4ay00178h ◽

2014 ◽

Vol 6 (16) ◽

pp. 6170-6182 ◽

Cited By ~ 13

Author(s):

G. L. Scheffler ◽

D. Pozebon

Keyword(s):

Mass Spectrometry ◽

Inductively Coupled Plasma ◽

Optical Emission ◽

Emission Spectrometry ◽

Icp Oes ◽

Mixed Gas ◽

Inductively Coupled ◽

Icp Ms ◽

Plasma Mass Spectrometry ◽

Plasma Optical Emission Spectrometry

This review deals with mixed gas Ar–N2 plasmas, highlighting advantages, limitations and applications of them in inductively coupled plasma optical emission spectrometry (ICP OES), inductively coupled plasma mass spectrometry (ICP-MS) and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) techniques, covering publications in the last three decades.

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Method validation and uncertainty for the determination of rare earth elements, yttrium, thorium and phosphorus in monazite samples by ICP-OES

10.31221/osf.io/w3fht ◽

2019 ◽

Author(s):

Chem Int

Keyword(s):

Rare Earth ◽

Rare Earth Elements ◽

Inductively Coupled Plasma ◽

Simple Procedure ◽

Optical Emission ◽

Icp Oes ◽

Limit Of Quantification ◽

Inductively Coupled ◽

Relative Standard

A method is described for the inductively coupled plasma optical emission spectrometric (ICP-OES) determination of rare earth elements (REE), yttrium (Y), thorium (Th) and phosphorus (P) in monazite samples. Sample preparation was carried out by fuming with sulphuric acid followed by fluoride fusion of the remaining residue. The method was validated using the single laboratory approach by assessment of analytical performance characteristics like specificity, linearity, range, accuracy and precision. Spectral interferences were observed in the case of some heavy REE (Ho,Er,Tm) by light REE (Nd) and correction factors were deduced and applied. The limit of quantification, instrument linearity and the method range were evaluated. Relative standard deviation (RSD) values ranging from 2.6 to 10.2 % were obtained for repeatability studies and RSD values ranging from 1.7 to 11.1% for intra-lab reproducibility studies. Accuracy was established by application to a monazite certified reference material (CRM) and also through comparison of results obtained by present method with those obtained by an alternate method. The validation results were compliant with the acceptance criteria for the various parameters assessed. A simple procedure has been described for the estimation of associated measurement uncertainty using the GUM “bottom-up” modelling approach and results presented in this paper. The validated method was applied to the determination of REE, Y, Th and P in some monazite samples from India.

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Petrography and Geochemistry of the Banded Iron Formation of the Gangfelum Area, Northeastern Nigeria

Earth Science Research ◽

10.5539/esr.v7n1p25 ◽

2017 ◽

Vol 7 (1) ◽

pp. 25

Author(s):

Anthony Temidayo Bolarinwa

Keyword(s):

Iron Oxide ◽

Inductively Coupled Plasma ◽

Optical Emission ◽

Iron Formation ◽

Icp Oes ◽

Banded Iron Formation ◽

Basement Complex ◽

Inductively Coupled ◽

Iron Precipitation ◽

Icp Ms

The Gangfelum Banded Iron Formation (BIF) is located within the basement complex of northeastern Nigeria. It is characterized by alternate bands of iron oxide and quartz. Petrographic studies show that the BIF consist mainly of hematite, goethite subordinate magnetite and accessory minerals including rutile, apatite, tourmaline and zircon. Chemical data from inductively coupled plasma optical emission spectrometer (ICP-OES) and inductively coupled plasma mass spectrometer (ICP-MS) show that average Fe2O3(t) is 53.91 wt.%. The average values of Al2O3 and CaO are 1.41 and 0.05 wt.% respectively, TiO2 and MnO are less than 0.5 wt. % each. The data suggested that the BIF is the oxide facies type. Trace element concentrations of Ba (67-332 ppm), Ni (28-35 ppm), Sr (13-55 ppm) and Zr (16-25 ppm) in the Gangfelum BIF are low and similar to the Maru and Muro BIF in northern Nigeria and also the Algoma iron formation from North America, the Orissa iron oxide facies of India and the Itabirite from Minas Gerais in Brazil. The evolution of the Gangfelum BIF involved metamorphism of chemically precipitated or rhythmically deposited iron-rich sediments into hematite-quartz rocks. The banding of the BIF suggested a break in iron precipitation probably due to iron oxide deficiency.

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