Development and application of a HPIC-ICP-MS method for the redox arsenic speciation in river sediment pore waters

2015 ◽  
Vol 30 (7) ◽  
pp. 1562-1570 ◽  
Author(s):  
Josselin Gorny ◽  
David Dumoulin ◽  
Ludovic Lesven ◽  
Catherine Noiriel ◽  
Benoît Madé ◽  
...  
Keyword(s):  
River Sediment ◽  
Arsenic Speciation ◽  
Pore Waters ◽  
Icp Ms ◽  
Pre Treatment ◽  
Treatment Step ◽  
Redox Speciation

A HPIC-ICP-MS method has been developed to directly determine As redox speciation in filtered sediment pore waters without pre-treatment step.

Sample pre-treatment techniques for use with ICP-MS hyphenated techniques for elemental speciation in biological samples

2017 ◽  
Vol 32 (1) ◽  
pp. 58-77 ◽  
Author(s):  
Han Wang ◽  
Xiaolan Liu ◽  
Kai Nan ◽  
Beibei Chen ◽  
Man He ◽  
...  
Keyword(s):  
Biological Samples ◽  
State Of The Art ◽  
Sample Pretreatment ◽  
The State ◽  
Elemental Speciation ◽  
Hyphenated Techniques ◽  
Treatment Techniques ◽  
Icp Ms ◽  
Pre Treatment

This review will focus specifically on the state of the art of novel sample pretreatment methods which have been combined with ICP-MS based hyphenated techniques for elemental speciation in biological samples.

Inactivation of E. Coli Using ZnO Nanofluids and Ultrasound

2014 ◽  
Vol 1004-1005 ◽  
pp. 978-982
Author(s):  
Ling Ling Zhang ◽  
Wei Qiang Sun ◽  
Yu Xia ◽  
Ya Ping Lv
Keyword(s):  
Growth Curves ◽  
E Coli ◽  
Pre Treatment ◽  
Zno Nanofluids ◽  
Treatment Step ◽  
Inhibiting Property ◽  
Inactivation Effect ◽  
Better Than

Combination of disinfection method gives advantages. In this work, inactivation of E. coli using ZnO nanofluids and ultrasound is evaluated. Growth curves of bacteria were investigated to reveal the inactivation activities of ZnO nanofluids and ultrasound. The effects of combination of ZnO nanofluids and ultrasound, ultrasound time, ultrasound induction point and the induction order of ZnO nanofluids and ultrasound were studied. The results suggested that combination of ZnO nanofluids and ultrasound gives better inactivation effect on E. coli when comparing with single disinfection method. Ultrasound for 10 s helped ZnO nanofluids inhibiting bacteria better than ultrasound for 30 s /60 s. Ultrasound induction point (at 0 hr, 2 hr or 4hr) did not affect on ZnO nanofluids to exhibit the inhibiting property. Induction ultrasound prior to adding ZnO nanofluids showed the better inactivation effect on E. coli. The results also displayed that in this work, ultrasound was mainly worked as a pre-treatment step, instead of a disinfection method.

Quantification of Tl (I) and Tl (III) based on microcolumn separation through ICP-MS in river sediment pore water

2020 ◽  
Vol 27 (9) ◽  
pp. 9686-9696 ◽  
Author(s):  
Atta Rasool ◽  
Tangfu Xiao ◽  
Salar Ali ◽  
Waqar Ali ◽  
Wajid Nasim
Keyword(s):  
Pore Water ◽  
River Sediment ◽  
Sediment Pore Water ◽  
Icp Ms ◽  
Microcolumn Separation

scholarly journals Enhanced synthesis method of graphene oxide

2021 ◽  
Vol 3 (1) ◽  
pp. 223-230
Author(s):  
Zineb Benzait ◽  
Pengwan Chen ◽  
Levent Trabzon
Keyword(s):  
Graphene Oxide ◽  
Electrical Properties ◽  
Synthesis Method ◽  
Environmentally Friendly ◽  
Mechanical And Electrical Properties ◽  
Pre Treatment ◽  
Treatment Step

A simple and environmentally friendly pre-treatment step allows the production of graphene oxide with few defects and high mechanical and electrical properties.

Ionic imprinted polymer – Vortex-assisted dispersive micro-solid phase extraction for inorganic arsenic speciation in rice by HPLC-ICP-MS

Talanta ◽  
2020 ◽  
Vol 220 ◽  
pp. 121418
Author(s):  
Kamal K. Jinadasa ◽  
Elena Peña-Vázquez ◽  
Pilar Bermejo-Barrera ◽  
Antonio Moreda-Piñeiro
Keyword(s):  
Solid Phase Extraction ◽  
Solid Phase ◽  
Arsenic Speciation ◽  
Inorganic Arsenic ◽  
Phase Extraction ◽  
Imprinted Polymer ◽  
Icp Ms

scholarly journals Selective Flotation of Pyrite from Arsenopyrite by Low Temperature Oxygen Plasma Pre-Treatment

Minerals ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 568 ◽  
Author(s):  
Jincheng Ran ◽  
Xianyang Qiu ◽  
Zhen Hu ◽  
Quanjun Liu ◽  
Baoxu Song
Keyword(s):  
Low Temperature ◽  
Oxygen Plasma ◽  
Separation Efficiency ◽  
Plasma Modification ◽  
Xps Analysis ◽  
Pyrite Surface ◽  
Oxidation Degree ◽  
Selective Flotation ◽  
Icp Ms ◽  
Pre Treatment

In this study, the surface modification of arsenopyrite and pyrite with low temperature oxygen plasma was developed as an effective approach to improve the flotation separation efficiency of minerals. The micro-flotation experiments results indicated that plasma pre-treatment can achieve selective flotation of arsenopyrite from pyrite. The XPS analysis results indicated that the oxidation degree of plasma-modification arsenopyrite surface is much higher than that of pyrite. A large number of sulfide components on the surface of the mineral were oxidized to highly-valence hydrophilic oxides by plasma pre-treatment. ICP-MS analysis results revealed that the dissolution rate was determined by the oxidation degree of minerals and plasma modified accelerated the dissolution of arsenopyrite and pyrite. Zeta potential determination results confirmed that plasma can keep a relatively higher adsorption of SBX on the pyrite surface but inhibit the adsorption of collector onto the arsenopyrite surface.

Comparison of biota sample pretreatments for arsenic speciation with coupled HPLC-HG-ICP-MS

The Analyst ◽  
2000 ◽  
Vol 125 (3) ◽  
pp. 401-407 ◽  
Author(s):  
J. L. Gómez-Ariza ◽  
D. Sánchez-Rodas ◽  
I. Giráldez ◽  
E. Morales
Keyword(s):  
Arsenic Speciation ◽  
Icp Ms ◽  
Biota Sample
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