scholarly journals Isotope-hydrogeochemical features of the Belokurikha field radon waters

2021 ◽  
Vol 44 (2) ◽  
pp. 174-183
Author(s):  
A. A. Khvashchevskaya ◽  
Yu. G. Kopylova ◽  
D. A. Novikov ◽  
A. N. Pyrayev ◽  
A. A. Maksimova ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Isotope Composition ◽  
Winter Precipitation ◽  
Mineral Waters ◽  
Thermal Waters ◽  
Dissolved Carbon ◽  
Inductively Coupled ◽  
Upper Paleozoic ◽  
Isotope Ratio Mass Spectrometer ◽  
Loose Sediments

The purpose of the work is to carry out integrated isotope-geochemical studies of the mineral waters of the Belokurikha deposit. The methods of titrimetry, ion chromatography, inductively coupled plasma mass spectrometry (ICPMS) have been used in the laboratory investigation of the chemical composition of waters. The isotope composition of oxygen, hydrogen and carbon in dissolved carbon dioxide has been studied with the help of the Isotope Ratio Mass Spectrometer FinniganTM MAT 253 equipped with the attachments for sample preparation H/Device (to analyze the δD ratio) and GasBench II (to analyze δ18O and δ13СDIC ratios). There are two aquifers at the deposit. The first nonartesian aquifer comprises loose sediments of the Quaternary age. The second artesian aquifer includes the granites of the upper Paleozoic age with the different fracture degree: from monolith to loosened. Three groups of waters are distinguished on the basis of geochemical coefficients: fracture-vein waters bedded in weathered granites; groundwaters of the zone of rare earth mineralization and background composition; surface waters of the Belokurikha river. The isotope data on oxygen and hydrogen provide evidence that the production aquifers of the Belokurikha field are fed through the infiltration of meteoric waters, with the feeding shift to winter precipitation. The paper provides the first data of the integrated isotope-hydrogeochemical studies of nitric-siliceous low-radon thermal waters of the Belokurikha deposit. The composition of these waters is HCO3-SO4 Na and SO4-HCO3 Na with the total dissolved salts value ranging from 198 to 257 mg/dm3. The waters are characterized by alkaline pH of 8.6–9.6, silicon content ranging from 19.8 to 24.6 mg/dm3, and they are referred to the fracture-vein waters of the Upper Paleozoic granites. 222Rn activity is up to 359 Bq/dm3. The ratios of δD (from -126.9 to -102.7 ‰) and δ18O (from -17.5 to -14.2 ‰) in the studied waters indicate their atmospheric origin. The values of δ13СDIC vary from -9.7 to -25.6 ‰ and point to the biogenic origin of carbon.

Advances in sample digestion using microwave-ultraviolet radiations: phosphorus and sulfur determination in animal feed

2020 ◽  
Vol 16 ◽  
Author(s):  
Diogo L. R. Novo ◽  
Priscila T. Scaglioni ◽  
Rodrigo M. Pereira ◽  
Filipe S. Rondan ◽  
Gilberto S. Coelho Junior ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Animal Feed ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Official Method ◽  
Dissolved Carbon ◽  
Inductively Coupled ◽  
Relative Standard ◽  
Wide Range ◽  
Sulfur Determination

Background: Conventional analytical methods for phosphorus and sulfur determination in several matrices present normally analytical challenges regarding inaccuracy, detectability and waste generation. Objective: The main objective is proposing a green and feasible analytical method for phosphorus and sulfur determination in animal feed. Methods: Synergic effect between microwave and ultraviolet radiations during sample preparation was evaluated for the first time for the animal feed digestion associated with further phosphorus and sulfur determination by ion chromatography with conductivity detection. Dissolved carbon and residual acidity in final digests were used for the proposed method assessment. Phosphorus and sulfur values were compared with those obtained using conventional microwave-assisted wet digestion in closed vessels associated with inductively coupled plasma optical emission spectrometry and with those obtained using Association of Official Analytical Chemists International official method. Recovery tests and certified reference material analysis were performed. Animal feeds were analyzed using the proposed method. Results: Sample masses of 500 mg were efficiently digested using only 2 mol L -1 HNO3. The results obtained by the proposed method was not differing significantly (p > 0.05) from those obtained by the conventional and official methods. Suitable recoveries (from 94 to 99%), agreement with certified values (101 and 104%) and relative standard deviations (< 8%) were achieved. Phosphorus and sulfur content in commercial products varied in a wide range (P: 5,873 to 28,387 mg kg-1 and S: 2,165 to 4,501 mg kg-1 ). Conclusion: The proposed method is a green, safe, accurate, precise and sensitive alternative for animal feed quality control.

scholarly journals ZIRCON IN HIGH‐MG DIORITE OF THE CHELYABINSK MASSIF (SOUTH URALS): MORPHOLOGY, GEOCHEMICAL SIGNATURE, AND PETROGENESIS IMPLICATIONS

2019 ◽  
Vol 10 (2) ◽  
pp. 289-308 ◽  
Author(s):  
T. A. Osipova ◽  
G. A. Kallistov ◽  
M. V. Zaitseva
Keyword(s):  
Trace Element ◽  
Inductively Coupled Plasma ◽  
Isotope Composition ◽  
Trace Element Composition ◽  
Element Composition ◽  
South Urals ◽  
Intermediate Composition ◽  
Inductively Coupled ◽  
Granitoid Massif ◽  
Mg Melt

The article is focused on the morphology, trace element composition, U‐Pb and Lu‐Hf systems in zircon in high‐Mg diorite of the Chelyabinsk granitoid massif. Our analytical studies of the U‐Pb and Lu‐Hf isotope systems and the trace element composition were performed using mass spectrometry (MS) with inductively coupled plasma (ICP) and laser ablation (LA) of samples. It is established that the zircon formed at the last stages of crystallization of the basic melt under subsolidus conditions at low (600–700 °C) temperatures, which distinguishes it from the zircon of most other high‐Mg rocks of the intermediate composition. The internal structure of the zircon and the concentration of trace elements are locally altered under the influence of a fluid, which led to a partial disruption of the U‐Pb and Lu‐Hf isotopic systems. For the least altered areas in the zircon crystals, the age of crystallization of the parent high‐Mg melt is 362±2 Ma, which coincides with the age estimated from the geological data. Considering the isotope composition of Hf in the zircon and the trace element concentrations, there are grounds to relate the formation of high‐Mg diorite in the Chelyabinsk granitoid massif with a mixed mantle‐crustal source.

Fluid compositions reveal fluid nature, metal deposition mechanisms, and mineralization potential: An example at the Haobugao Zn-Pb skarn, China

Geology ◽  
2020 ◽  
Author(s):  
Qihai Shu ◽  
Zhaoshan Chang ◽  
John Mavrogenes
Keyword(s):  
Inductively Coupled Plasma ◽  
Isotope Composition ◽  
Northeastern China ◽  
Metal Deposition ◽  
Mass Balance Calculation ◽  
Inductively Coupled ◽  
Mineralization Potential ◽  
Plasma Mass Spectrometry ◽  
Absolute Concentrations ◽  
Potential Tool

Fluid inclusion compositions obtained from laser ablation–inductively coupled plasma–mass spectrometry at the Haobugao Zn-Pb skarn in northeastern China provide constraints on fluid origin, evolution, and metal deposition mechanisms and an example of evaluating mineralization potential. Metal concentrations in the prograde fluids were high (up to 1.4 wt% Zn and 1.8 wt% Pb) but remained in solution, likely due to the high temperatures (440–575 °C) and salinities (35.4–45.3 wt% NaCl equivalent). Absolute concentrations of elements (e.g., Rb and Na) and mass ratios (e.g., Zn/Na and K/Na) reveal that the early, prograde fluids were magmatic, consistent with the oxygen isotope composition of fluids (δ18OH2O = 5.5‰–8.5‰). Later mixing with a meteoric fluid caused dilution and Zn-Pb deposition, as revealed by lowered element concentrations and Pb/(Na + K) and Zn/(Na + K) ratios in the sulfide-stage fluid inclusions. Elevated Ca/K ratios in sphalerite-hosted inclusions indicate fluid-carbonate reactions that buffered fluid pH, also facilitating Zn-Pb precipitation. Although cassiterite and molybdenite occur locally at Haobugao, mass balance calculation shows low metal endowment (maximum 2900 t Sn and 2200 t Mo) of the system. Furthermore, the generally unchanged Sn/(Na + K) and Mo/(Na + K) ratios from pre- to late-mineralization fluids suggest that the fluids were never saturated in Sn and Mo. Therefore, finding much Sn or Mo at Haobugao is unlikely. This demonstrates a potential tool for evaluating the metal endowment of a mineral prospect, which may guide exploration.

Precise isotope analysis of tellurium by inductively coupled plasma mass spectrometry using a double spike method

2018 ◽  
Vol 33 (7) ◽  
pp. 1233-1242 ◽  
Author(s):  
Yusuke Fukami ◽  
Jun-Ichi Kimura ◽  
Katsuhiko Suzuki
Keyword(s):  
Mass Spectrometry ◽  
Stable Isotope ◽  
Inductively Coupled Plasma ◽  
Isotope Composition ◽  
Isotope Analysis ◽  
Stable Isotope Composition ◽  
Inductively Coupled ◽  
Analytical Protocol ◽  
Plasma Mass Spectrometry ◽  
Sample Aliquot

We present an analytical protocol to determine the Te/Se ratio and stable isotope composition of Te from a single sample aliquot.

scholarly journals FIRST RESULTS OF STUDY OF ISOTOPE COMPOSITION OF URANIUM IN WATER SAMPLES OF THE “CRYSTAL” SITE

2021 ◽  
Vol 2 (1) ◽  
pp. 329-335
Author(s):  
Svetlana Yu. Artamonova ◽  
Dmitrii Yu. Troitskii ◽  
Vladislav E. Ushnitskii
Keyword(s):  
Mass Spectrometry ◽  
Surface Water ◽  
Water Samples ◽  
Inductively Coupled Plasma ◽  
Isotope Ratio ◽  
Nuclear Explosion ◽  
Isotope Composition ◽  
Underground Nuclear Explosion ◽  
Inductively Coupled ◽  
First Results

The first results of isotope composition of uranium of surface water of the peaceful underground nuclear explosion “Crystal” site are discussed. The isotope ratio is determined by the mass-spectrometry on the inductively coupled plasma.

HEALTH RISK RELATED TO EXPOSURE TO TOXIC COMPOUNDS CONTAINED IN MINERAL AND SPRING WATERS

2021 ◽  
Vol 74 (7) ◽  
pp. 1587-1594
Author(s):  
Katarzyna Tomczyk ◽  
Grzegorz Dziubanek ◽  
Anna Kowalska ◽  
Iwona Szymala ◽  
Beata Łabuz-Roszak
Keyword(s):  
Health Risk ◽  
Inductively Coupled Plasma ◽  
Mineral Waters ◽  
Potential Health ◽  
Toxic Compounds ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Cadmium Lead ◽  
Significant Health

The aim: The study aimed to assess the content of selected toxic compounds in mineral and spring waters available on the Polish market regarding potential health risks to consumers. Materials and methods: Selected mineral and spring waters available on the Polish market were the study’s objects. The content of such chemical compounds as arsenic, cadmium, lead, copper, and mercury in selected mineral and spring waters was analyzed. The content of metals in the samples was determined by inductively coupled plasma mass spectrometry (ICP-MS). Additionally, a literature review was performed to determine nitrates contamination of bottled waters available on the Polish market. Based on the collected data, an assessment of exposure and health risk to consumers was performed. Results: Arsenic had the highest mean concentration in the analyzed water samples. Consumption of such contaminated waters may be a significant health risk factor for consumers. Literature data indicate a relatively low content of nitrates in bottled waters available on the Polish market. Consumption of such mineral waters is not a significant source of exposure and does not translate into a significant health risk for consumers. Conclusions: To ensure consumers’ health safety, there is a need to monitor the content of potentially harmful compounds in mineral and spring waters available on the Polish market.

scholarly journals Lithium in Portuguese Bottled Natural Mineral Waters—Potential for Health Benefits?

2020 ◽  
Vol 17 (22) ◽  
pp. 8369
Author(s):  
Maria Orquídia Neves ◽  
José Marques ◽  
Hans G.M. Eggenkamp
Keyword(s):  
Drinking Water ◽  
Inductively Coupled Plasma ◽  
Mineral Water ◽  
Tap Water ◽  
Health Benefits ◽  
Epidemiological Studies ◽  
Mineral Waters ◽  
Natural Mineral ◽  
Natural Mineral Water ◽  
Inductively Coupled

There is increasing epidemiologic and experimental evidence that lithium (Li) exhibits significant health benefits, even at concentrations lower than the therapeutic oral doses prescribed as treatment for mental disorders. The aim of this study is to determine the content of Li in 18 brands of bottled natural mineral waters that are available on the Portuguese market and from which the sources are found within the Portuguese territory, to provide data for Li intake from drinking water. Analyses of Li were performed by inductively coupled plasma-mass spectrometry. The results indicate highly different Li concentrations in natural mineral waters: one group with low Li concentrations (up to 11 µg Li/L) and a second group with Li concentrations higher than 100 µg/L. The highest Li concentrations (>1500 µg Li/L) were observed in the highly mineralized Na-HCO3 type waters that are naturally carbonated (>250 mg/L free CO2). As a highly bioavailable source for Li dietary intake these natural mineral waters have potential for Li health benefits but should be consumed in a controlled manner due to its Na and F− contents. The consumption of as little as 0.25 L/day of Vidago natural mineral water (2220 µg Li/L), can contribute up to 50% of the proposed daily requirement of 1 mg Li/day for an adult (70 kg body weight). In future, Li epidemiological studies that concern the potential Li effect or health benefits from Li in drinking water should consider not only the Li intake from tap water but also intake from natural mineral water that is consumed in order to adjust the Li intake of the subjects.

ICP MS analysis and classification of potable, spring, and mineral waters

2008 ◽  
Vol 62 (5) ◽  
Author(s):  
Filip Kraic ◽  
Ján Mocák ◽  
Željka Fiket ◽  
Goran Kniewald
Keyword(s):  
Water Samples ◽  
Inductively Coupled Plasma ◽  
Tap Water ◽  
Principal Component ◽  
Spring Water ◽  
Mineral Waters ◽  
Elevated Concentration ◽  
Inductively Coupled ◽  
Validation Procedure ◽  
Leave One Out

AbstractNinety-three water samples were categorized into five classes as the tap, mineral, mineral carbonated, spring, and spring carbonated water, or, alternatively, into four or three categories — with all spring water samples together or as tap, mineral, and spring water, respectively. The samples originated from four European countries and thirty-one chemical descriptors (concentrations of contained elements) were used for their characterization. Analytical measurements were performed by mass spectrometry with inductively coupled plasma, allowing the determination of individual nuclides. Different water categories were characterized by chemometrical techniques, mainly by principal component analysis, cluster analysis, linear and quadratic discriminant analyses, correlation analysis, and ANOVA. Their role was to discover the nuclides important for distinct characterization of individual water categories as well as to assess the possibility of water samples from different countries being recognized from the increased/decreased content of some elements. The enhanced content of Cd, Cu, Zn, Bi, and Fe was characteristic for tap water samples, whilst mineral water samples were characterized by the elevated concentration of Sr, Li, B, Ni, Co, As, and Sb. The classification results were successful and close to 100 %, which was proved by the leave-one-out cross-validation procedure.

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