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.

scholarly journals LA-ICP-MS analysis of fluid inclusions: contamination effects challenging micro-analysis of elements close to their detection limit

2017 ◽  
Vol 32 (5) ◽  
pp. 1052-1063 ◽  
Author(s):  
Katerina Schlöglova ◽  
Markus Wälle ◽  
Christoph A. Heinrich
Keyword(s):  
Mass Spectrometry ◽  
Fluid Inclusions ◽  
Inductively Coupled Plasma ◽  
Analytical Procedure ◽  
Inductively Coupled ◽  
Natural Minerals ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Reliable Quantification ◽  
Micro Analysis

This paper presents a practical guide to an optimized analytical procedure for the reliable quantification of trace element concentrations in fluid inclusions hosted by natural minerals, using laser ablation inductively coupled plasma mass spectrometry (ICP-MS).

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.

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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