Germanium isotope measurements of high-temperature geothermal fluids using double-spike hydride generation MC-ICP-MS

2006 ◽  
Vol 70 (15) ◽  
pp. 3986-3995 ◽  
Author(s):  
Christopher Siebert ◽  
Andy Ross ◽  
James McManus
Keyword(s):  
High Temperature ◽  
Hydride Generation ◽  
Geothermal Fluids ◽  
Icp Ms ◽  
Isotope Measurements

In situ boron isotope measurements of natural geological materials by LA-MC-ICP-MS

2010 ◽  
Vol 55 (29) ◽  
pp. 3305-3311 ◽  
Author(s):  
KeJun Hou ◽  
YanHe Li ◽  
YingKai Xiao ◽  
Feng Liu ◽  
YouRong Tian
Keyword(s):  
Boron Isotope ◽  
Geological Materials ◽  
Icp Ms ◽  
Isotope Measurements

Caution on the use of NBS 30 biotite for hydrogen-isotope measurements with on-line high-temperature conversion systems

2014 ◽  
Vol 28 (18) ◽  
pp. 1987-1994 ◽  
Author(s):  
Haiping Qi ◽  
Tyler B. Coplen ◽  
Gerard A. Olack ◽  
Torsten W. Vennemann
Keyword(s):  
High Temperature ◽  
Hydrogen Isotope ◽  
On Line ◽  
Isotope Measurements

scholarly journals Arsenic quantification techniques and ISO/IEC 17025 accreditation in Brazil

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.

Electrochemical desulfurization of geothermal fluids under high temperature and pressure

2008 ◽  
Vol 39 (3) ◽  
pp. 383-389 ◽  
Author(s):  
B. G. Ateya ◽  
F. M. Al Kharafi ◽  
A. M. El-Shamy ◽  
A. Y. Saad ◽  
R. M. Abdalla
Keyword(s):  
High Temperature ◽  
Geothermal Fluids ◽  
High Temperature And Pressure ◽  
Temperature And Pressure
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