scholarly journals A Study on Beryl in the Cuonadong Be-W-Sn Polymetallic Deposit, Longzi County, Tibet, China

Crystals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 777
Author(s):  
Jia-Qi Shen ◽  
Zhi-Kang Hu ◽  
Shi-Yuan Cui ◽  
Yu-Fei Zhang ◽  
En-Qi Li ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Metal Content ◽  
Near Infrared ◽  
Type I ◽  
Type Ii ◽  
Chemical Analyses ◽  
Inductively Coupled ◽  
Polymetallic Deposit ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

Recently, aquamarine was discovered in the Cuonadong Be-W-Sn Polymetallic Deposit, Longzi County, Tibet. Longzi aquamarine is being extracted and is expected to be available over the next decade. This study provides a full set of data through standard gemmological properties, including scenes, color characteristics and advanced spectroscopic and chemical analyses, including micro ultraviolet–visible–near-infrared (UV–Vis–NIR), Raman and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). The main inclusions in Longzi aquamarine are gas–liquid inclusions and a great number of quartz inclusions. The content of type I H2O is greater than that of type II H2O because of the low-alkali metal content, and “tetrahedral” substitutions and “octahedral” substitutions exist at the same time.

scholarly journals Aquamarine from Thach Khoan Mining Area in Phu Tho Province, Vietnam

2017 ◽  
Vol 33 (2) ◽  
Author(s):  
Dương Lý Thùy
Keyword(s):  
Inductively Coupled Plasma ◽  
Mining Area ◽  
Global Market ◽  
Type I ◽  
Electron Probe Micro Analysis ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Micro Analysis ◽  
Raman And Ir Spectroscopy

Abstract: Aquamarine is a kind of gemstone having attractive color, valuable and being a potential material in gemological industry. In Vietnam, Thach Khoan area has become a noticeable location to explore aquamarine. However, the researches of aquamarine are still limited. Therefore, this study was conducted to determine the characteristics of aquamarine. Eight aquamarine samples from granitic pegmatites in Thach Khoan commune, Thanh Son District, Phu Tho Province were investigated by classical gemological methods, Electron Probe Micro-analysis (EMPA) and Laser Ablation – Inductively Coupled Plasma – Mass Spectrometry (LA-ICP-MS) methods, Raman and Fourier transform infrared (FTIR) spectroscopy. Results showed that aquamarine presents a low concentration of alkali and high amount of iron. Raman and IR spectroscopy indicate the vibrations of specific bonds including Si-O, Al-O, Be-O, the presence of CO2 and type I H2O in structural channels. By dint of that, we are going to study the potential treatment methods of aquamarine in Vietnam in the following study to enhance its quality as well as value in the global market.

Biocompatibility of Near-IR Sensitive Au-Based Nanoparticles as the Potential Drug Delivery Carriers

2007 ◽  
Vol 334-335 ◽  
pp. 1177-1180 ◽  
Author(s):  
Bin Zhang ◽  
Xiao Li Huang ◽  
Lei Ren ◽  
Qi Qing Zhang ◽  
Mei Chee Tan ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Near Infrared ◽  
Nih3t3 Cells ◽  
Inductively Coupled ◽  
Near Ir ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Good Biocompatibility

We successfully synthesized near infrared (NIR) sensitive Au(shell)-Au2S(core) nanoparticles, where Au2S dielectric core was encapsulated by a thin gold shell. The cytotoxicity in vitro and biodistribution in vivo of Au-Au2S nanoparticles was studied by using NIH3T3 cells and KM mice, respectively. The quantitative analysis of Au in each tissue of mice was done by using the Inductively Coupled Plasma Mass Spectrometry (ICP-MS). Au-Au2S nanoparticles (< 300 μg/ml) showed good biocompatibility. Au-Au2S nanoparticles were preferentially taken up by the liver and spleen, and ultimately eliminated mostly in the feces.

scholarly journals Metal Content and Stable Isotope Determination in Some Commercial Beers from Romanian Markets

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Cezara Voica ◽  
Dana-Alina Magdas ◽  
Ioana Feher
Keyword(s):  
Mass Spectrometry ◽  
Inductively Coupled Plasma ◽  
Metal Content ◽  
Isotope Ratio Mass Spectrometry ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Trace Metal Content ◽  
Brewing Process ◽  
Plasma Mass Spectrometry

Characterization of beer samples is of interest because their compositions affect the taste and stability of beer and, also, consumer health. In this work, the characterizations of 20 Romanian beers were performed by mean of Inductively Coupled Plasma Mass Spectrometry (ICP-MS) and Isotope Ratio Mass Spectrometry (IRMS) in order to trace heavy metals and isotopic content of them. Major, minor, and trace metals are important in beer fermentation since they supply the appropriate environment for yeast growth and influence yeast metabolism. Beside this, the presence of the C4plants in the brewing process was followed. Our study has shown that the analyzed beers indicated the presence of different plant types used in brewing: C3, C3-C4mixtures, and also C4, depending on producers. Also the trace metal content of each sample is presented and discussed in this study. A comparison of the beers quality manufactured by the same producer but bottled in different type of packaging like glass, dose, or PET was made; our results show that no compositional differences among the same beer type exist.

scholarly journals Determination of Metals Content in Wine Samples by Inductively Coupled Plasma-Mass Spectrometry

Molecules ◽  
2018 ◽  
Vol 23 (11) ◽  
pp. 2886 ◽  
Author(s):  
Justyna Płotka-Wasylka ◽  
Marcin Frankowski ◽  
Vasil Simeonov ◽  
Żaneta Polkowska ◽  
Jacek Namieśnik
Keyword(s):  
Mass Spectrometry ◽  
Inductively Coupled Plasma ◽  
Metal Content ◽  
Limit Of Detection ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Potentially Toxic Metals ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

Knowledge about the metal content of wine is very important, for many reasons. Depending on the element, its quantity varies in wine from ng/L to mg/L. Despite the fact that metals are not directly connected to the taste and aroma of the wine, their content should be determined and controlled, because excess is undesirable, and in some cases prohibited, due to potential toxicity. Several analytical procedures for metal determination are applied. However, due to sensitivity, low limit of detection and speed of analysis, inductively coupled plasma-mass spectrometry (ICP-MS) is one of the most frequently used techniques. The aim of this study was to reveal specific relationships between the wine samples or between the chemical variables in order to classify the wines according to their metal content by application of chemometric analysis. For metals content determination, two techniques, ICP-MS and inductively coupled plasma-optical emission spectrometry (ICP-OES), were applied. Data obtained showed that none of the wine samples surpassed the toxic levels reported for metals in the literature, thus, these wines appeared to be safe as regards the risk associated with the potentially toxic metals intake. However, specific correlations between metals and specific aspects of the wines themselves have been found.

scholarly journals LA-ICP-MS Analysis of Minerals from the Shizhuyuan W-Polymetallic Deposit, South China: Implications for Mineralization of Pb, W, Mo and Bi

Minerals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 748
Author(s):  
Jiaxin Yuan ◽  
Qingye Hou ◽  
Zhongfang Yang ◽  
Zhaochu Hu ◽  
Tao Yu
Keyword(s):  
South China ◽  
Inductively Coupled Plasma ◽  
Hydrothermal Process ◽  
Silicate Minerals ◽  
Inductively Coupled ◽  
Polymetallic Deposit ◽  
Nanling Range ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

The South China Block (SCB) is a globally important metallogenic district containing numerous W-Sn deposits. Extensive studies of W-polymetallic deposits in this region have greatly improved our understanding of the petrogenesis, geochronology and metallogenesis of these systems. However, studies on the mobilization of ore-forming elements between mineralization- and alteration-related minerals using in situ analyses are rare. Using laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS), we analyzed W, Pb, Mo and Bi concentrations in silicate minerals and scheelite from granites and skarns associated with the Shizhuyuan W-polymetallic deposit in the Nanling Range in the SCB. Data show that muscovitized biotite in granites contains high W contents. Pb mainly occurs in K-feldspar and plagioclase in granites and epidote and scheelite in skarns. Bi mainly occurs in epidote in skarns. Scheelite in skarns contains high W and Mo contents. Pb isomorphously substitutes K or Ca in silicate minerals and scheelite. W isomorphously substitutes Ti in biotite. Mo isomorphously substitutes W in scheelite and occurs as W-bearing submicroscopic inclusions in minerals with low contents. Bi isomorphously substitutes Pb when the Pb content is relatively high and occurs as Bi-bearing micro or submicroscopic inclusions in minerals when the Pb content is low. Biotite and feldspar are altered in a magmatic-hydrothermal process, W enriched in biotite, Pb enriched in feldspar and the W-, Pb-, Mo- and Bi-bearing submicroscopic inclusions are excluded from minerals and released to the magmatic-hydrothermal fluids. Large amounts of W are precipitated in scheelite when the fluids come in contact with carbonate rocks to form skarn, while a few contents of Pb, Mo and Bi are distributed in skarn minerals. Thus, large amounts of Pb, Mo, Bi and residual W remain in the fluids, which results in the formation of a W-Sn-Mo-Bi massive skarn ore.

Single Particle Inductively Coupled Plasma Mass Spectrometry: Investigating Nonlinear Response Observed in Pulse Counting Mode and Extending the Linear Dynamic Range by Compensating for Dead Time Related Count Losses on a Microsecond Timescale

2019 ◽  
Author(s):  
Ingo Strenge ◽  
Carsten Engelhard
Keyword(s):  
Mass Spectrometry ◽  
Inductively Coupled Plasma ◽  
Nonlinear Response ◽  
Dynamic Range ◽  
Dead Time ◽  
Inorganic Nanoparticles ◽  
Linear Dynamic Range ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

<p>The article demonstrates the importance of using a suitable approach to compensate for dead time relate count losses (a certain measurement artefact) whenever short, but potentially strong transient signals are to be analysed using inductively coupled plasma mass spectrometry (ICP-MS). Findings strongly support the theory that inadequate time resolution, and therefore insufficient compensation for these count losses, is one of the main reasons for size underestimation observed when analysing inorganic nanoparticles using ICP-MS, a topic still controversially discussed.</p>

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