scholarly journals Capabilities and limitations of tin direct determination using the spectrometry methods with inductively coupled plasma in Azov and Black sea waters

2021 ◽  
Vol 25 (2) ◽  
pp. 84-97
Author(s):  
D. D. Abakumova ◽  
◽  
Z. A. Temerdashev ◽  
P.G. Abakumov ◽  
◽  
...  
Keyword(s):  
Black Sea ◽  
Calibration Curve ◽  
Inductively Coupled Plasma ◽  
Sampling Site ◽  
Direct Determination ◽  
Analytical Signal ◽  
Salinity Level ◽  
The Black Sea ◽  
Inductively Coupled ◽  
Icp Ms

The current study discussed the capabilities and limitations of tin direct determination in the waters of the Black and Azov Seas using the ICP-MS and ICP-AES methods without the separation and concentration of the analyte. The conditions for the analysis of waters, the influence of dilution and matrix components on the results of the analysis were established. As the salinity of the seawater increased, the slope of the calibration curve decreased, regardless of the detection method used. The leveling of the matrix effect of seawater on the analytical signal of tin was achieved by diluting the sample up to 100 times. A significant decrease in the analytical signal of tin was observed on the samples of seawater characterized by the high salinity. These methods allowed determining tin at the concentrations ranging from 0.33 μg/dm3 (ICP-MS), 0.37 μg/dm3 (ICP-AES) to 5 μg/dm3 in natural (fresh) water or seawater with low salinity level according to the calibration curve of the deionized water. For ICP-MS and ICP-AES determination of tin in seawater with the salinity level above 6‰ and tin concentration of more than 5 μg/dm3, it was required to use the calibration dependence constructed on the model seawater considering the salinity of the object. The studies have shown that the content of tin in the Kuban River is 0.13 μg/dm3. In the Sea of Azov, the concentration of tin in the water, depending on the sampling site, was less than 0.33 μg/dm3 (Taman) and 1.8 μg/dm3 (Temryuk, commercial port). In the Black Sea, the concentration of tin in the seawater samples from Novorossiysk city was higher and ranged from 0.55 μg/dm3 (embankment) to 1.5 μg/dm3 (seaport) and 2.1 μg/dm3 (grain terminal).

scholarly journals Heavy Metal Detection in Scorpaena Porcus Linnaeus, 1758 from Sinop Coast of the Black Sea and Potential Risks to Human Health

2018 ◽  
Vol 6 (3) ◽  
pp. 255-260 ◽  
Author(s):  
Levent Bat ◽  
Ayşah Öztekin ◽  
Fatih Şahin
Keyword(s):  
Heavy Metal ◽  
Black Sea ◽  
Inductively Coupled Plasma ◽  
Daily Intake ◽  
Well Being ◽  
The Black Sea ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Potential Risks ◽  
Scorpaena Porcus

The current research was performed to detect the heavy metal amounts (Hg, As, Cd, Pb, Cu, Zn) in one of the most common fish species (Scorpaena porcus Linnaeus, 1758) captured from the south shores of the Black Sea during the fishing season in 2016. Heavy metals were examined by using ICP-MS (Inductively Coupled Plasma - Mass Spectrophotometer). The amounts of the metals (Hg, Pb and Cd) in some specimen were under the detection limits. The maximum levels of all measured metals are as low the recommended limit by the admitted organizations. It was shown that the measured metal amounts in edible tissue of the S. porcus were under the well-being levels for people consumption for the average Estimated Daily Intake (EDI) and Hazarded Index (HI˂1).

scholarly journals Slurry nebulisation ICP-MS direct determination of high field strength elements (Nb, Ta, Zr, and Hf) in silicate rocks

RSC Advances ◽  
2019 ◽  
Vol 9 (56) ◽  
pp. 32435-32440 ◽  
Author(s):  
Rui Tong ◽  
Wei Guo
Keyword(s):  
Field Strength ◽  
Inductively Coupled Plasma ◽  
High Field ◽  
Direct Determination ◽  
High Field Strength ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Silicate Rocks

A simple, rapid, and reliable method based on slurry nebulisation inductively coupled plasma mass spectrometry (ICP-MS) was developed for the direct determination of four high field strength elements (HFSEs, namely, Nb, Ta, Zr, and Hf) in refractory silicate rocks.

scholarly journals Trends towards Effective Analysis of Fluorinated Compounds Using Inductively Coupled Plasma Mass Spectrometry (ICP-MS)

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Ruth Lorivi Moirana ◽  
Thomas Kivevele ◽  
Josephine Mkunda ◽  
Kelvin Mtei ◽  
Revocatus Machunda
Keyword(s):  
Mass Spectrometry ◽  
Inductively Coupled Plasma ◽  
Direct Determination ◽  
Environmental Matrices ◽  
Quality Of Results ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Effective Analysis

Increased demand for monitoring and identification of novel and unknown fluorinated compounds (FCs) has demonstrated the need of sensitive fluorine-specific detectors for unknown FCs in both biological and environmental matrices. Inductively coupled plasma mass spectrometry (ICP-MS) is a promising technique for analysis of FCs and has been rated as the most powerful tool in analytical chemistry. However, direct determination of fluorine using this technique is challenged by high ionization potential of fluorine together with spectral and nonspectral interferences which affect the quality of results. To enhance the quality of results, several studies have reported modifications of a conventional ICP-MS analysis procedure on sample preparation, introduction, analysis, and instrument optimization. Therefore, the focus of this study is to discuss different ICP-MS optimizations and future trends towards the effective analysis of FCs using ICP-MS.

scholarly journals Perovskites of the Tazheran Massif (Baikal, Russia)

Minerals ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 323
Author(s):  
Eugene V. Sklyarov ◽  
Nikolai S. Karmanov ◽  
Andrey V. Lavrenchuk ◽  
Anastasia E. Starikova
Keyword(s):  
Inductively Coupled Plasma ◽  
Nepheline Syenite ◽  
Sampling Site ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Two Generations ◽  
Late Generation ◽  
Local Geology ◽  
Type 3 ◽  
Brucite Marble

The paper provides details of local geology and mineralogy of the Tazheran Massif, which was the sampling site of perovskite used as an external standard in perovskite U-Pb dating by sensitive high-resolution ion microprobe (SHRIMP) and laser ablation inductively-coupled plasma (LA–ICP–MS) mass spectrometry. The Tazheran Massif is a complex of igneous (mafic dikes, syenite, nepheline syenite), metamorphic (marble), and metasomatic (skarn, calc–silicate veins) rocks. Metasomatites are thin and restricted to the complex interior being absent from the margins. Perovskite has been studied at four sites of metasomatic rocks of three different types: forsterite–spinel calc–silicate veins in brucite marble (1); skarn at contacts between nepheline syenite and brucite marble (2), and skarn-related forsterite–spinel (Fo-Spl) calc–silicate veins (3). Pervoskite from Fo-Spl calc–silicate veins (type 1) is almost free from impurities (<1 wt.% in total: 0.06%–0.4% REE2O3, 0.10%–0.22% Nb2O5, ≤0.1% ThO2). The U contents are from 0.1 to 1.9 wt.% UO2 and are relatively uniform in perovskites from the same vein but differ from vein to vein of this type. Perovskite from the contact skarn (type 2) contains 1.5 to 4.5 wt.% REE2O3 but is poor in other impurities. Perovskite grains from skarn-related Fo-Spl calc–silicate rocks (type 3) belong to two generations that differ in REE, Nb, Th, Fe, and Na concentrations. Early-generation perovskites occurs as compositionally homogeneous octahedral or cubic-octahedral crystals with contents of impurities higher than in other varieties (3.6 wt.% REE2O3, 1.6 wt.% Fe2O3, 1.3 wt.% Nb2O5, 0.7 wt.% ThO2, 0.6 wt.% UO2, and 0.6 wt.% Na2O) but the lowest is at the respective site. Late-generation varieties show highly variable impurity concentrations of 1.5 to 22.7 wt.% REE2O3, 0.4 to 8.4 wt.% Nb2O5, and 0.8 to 4.5% ThO2, while the perovskite component may be as low as 65%. In addition to the lueshite and loparite, components, they contain REEFeO3 and Th0.5TiO3 endmembers which have no natural analogs.

Environmental Influence on Rapana venosa Shell Morphotypes and Phenotypes from the Romanian Black Sea Coast

2018 ◽  
Vol 69 (1) ◽  
pp. 50-56
Author(s):  
Viviana Sereanu ◽  
Irina Meghea ◽  
Gabriela Geanina Vasile ◽  
Mihaela Mihai
Keyword(s):  
Black Sea ◽  
Inductively Coupled Plasma ◽  
Environmental Influence ◽  
The Black Sea ◽  
The Sea Of Japan ◽  
Rapana Venosa ◽  
Inductively Coupled ◽  
Black Sea Coast ◽  
Tight Connection ◽  
Sea Coast

Rapana venosa (Valenciennes, 1846) is a muricid gastropod originating from the Sea of Japan and occurring in abundance into the Black Sea. The aim of the present paper is to report differences displayed by the shell of rapana in terms of aspect in tight connection with seawater pollution and marine benthic substrates. For this purpose, whole individuals were collected from three representative sites of the Romanian Black Sea Coast. Morphological and phenotypical characteristics were registered for each shell. Furthermore, a chemical analysis of shell composition was performed with an inductively coupled plasma spectrometer in order to identify composition differences among sampling areas.

scholarly journals Zinc flexes its muscle: Correcting a novel analysis of calcium for zinc interference uncovers a method to measure zinc

2015 ◽  
Vol 147 (1) ◽  
pp. 95-102 ◽  
Author(s):  
Cheng Qian ◽  
Robert A. Colvin
Keyword(s):  
Skeletal Muscle ◽  
Inductively Coupled Plasma ◽  
Zinc Concentration ◽  
Direct Determination ◽  
Total Calcium ◽  
Rat Skeletal Muscle ◽  
Inductively Coupled ◽  
Muscle Tissues ◽  
Icp Ms

The divalent cation chelator 1,2-bis(o-aminophenoxy)ethane-N,N,N′,N′-tetraacetic acid (BAPTA), often used to buffer physiological changes in cytosolic Ca2+, also binds Zn2+ with high affinity. In a recently published method (Lamboley et al. 2015. J. Gen. Physiol. http://dx.doi.org/10.1085/jgp.201411250), the absorbance shift of BAPTA at 292 nm was successfully used to determine the total calcium concentrations of various skeletal muscle tissues. In the present study, we show that endogenous Zn2+ in rat skeletal muscle tissue can be unknowingly measured as “Ca2+,” unless appropriate measures are taken to eliminate Zn2+ interference. We analyzed two rat skeletal muscle tissues, soleus and plantaris, for total calcium and zinc using either inductively coupled plasma mass spectrometry (ICP-MS) or the BAPTA method described above. ICP-MS analysis showed that total zinc contents in soleus and plantaris were large enough to affect the determination of total calcium by the BAPTA method (calcium = 1.72 ± 0.31 and 1.96 ± 0.14, and zinc = 0.528 ± 0.04 and 0.192 ± 0.01; mean ± standard error of the mean [SEM]; n = 5; mmole/kg, respectively). We next analyzed total calcium using BAPTA but included the Zn2+-specific chelator N,N,N′,N′-tetrakis(2-pyridylmethyl)ethylenediamine (TPEN) that buffers Zn2+ without affecting Ca2+/BAPTA binding. We found that estimated concentrations of total calcium ([CaT]WM) in soleus and plantaris were reduced after TPEN addition ([CaT]WM = 3.71 ± 0.62 and 3.57 ± 0.64 without TPEN and 3.39 ± 0.64 and 3.42 ± 0.62 with TPEN; mean ± SEM; n = 3; mmole/kg, respectively). Thus, we show that a straightforward correction can be applied to the BAPTA method to improve the accuracy of the determination of total calcium that should be applicable to most any tissue studied. In addition, we show that using TPEN in combination with the BAPTA method allows one to make reasonable estimates of total zinc concentration that are in agreement with the direct determination of zinc concentration by ICP-MS.

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