Attenuation of Metal Oxide Ions in Inductively Coupled Plasma Mass Spectrometry with a Graphite Torch Injector

1995 ◽  
Vol 67 (13) ◽  
pp. 1929-1934 ◽  
Author(s):  
P. Scott. Clemons ◽  
Michael G. Minnich ◽  
R. S. Houk
Keyword(s):  
Mass Spectrometry ◽  
Metal Oxide ◽  
Inductively Coupled Plasma ◽  
Inductively Coupled ◽  
Plasma Mass Spectrometry ◽  
Oxide Ions

Oxide, Hydroxide, and Doubly Charged Analyte Species in Inductively Coupled Plasma/Mass Spectrometry

1986 ◽  
Vol 40 (4) ◽  
pp. 434-445 ◽  
Author(s):  
M. A. Vaughan ◽  
G. Horlick
Keyword(s):  
Mass Spectrometry ◽  
Inductively Coupled Plasma ◽  
Inductively Coupled ◽  
Doubly Charged Ions ◽  
Oxide Hydroxide ◽  
Plasma Mass Spectrometry ◽  
Singly Charged ◽  
Doubly Charged ◽  
Oxide Ions ◽  
Charged Ions

In inductively coupled plasma/mass spectrometry analyte, M may be distributed among several species forms including doubly charged ions (M2+), singly charged ions (M+), mono-oxide ions (MO+), and hydroxide ions (MOH+). Detailed data are presented for Ba to illustrate the dependence of the ion count of these species and their ratios (M2+/M+, MO+/M+, and MOH+/M+) on nebulizer flow rate, plasma power, and sampling depth. Although these data are representative of most elements, many form oxides to a much greater degree than Ba; data are presented for Ti, W, and Ce to illustrate this fact. These various analyte species are important in that serious interelement interferences can occur because of spectral overlap. An extensive pair of tables indicating potential spectral interferences caused by element oxide, hydroxide, and doubly charged ions is presented.

Fabrication of Metal Oxide-Biopolymer Nanocomposite for Water Defluoridation

2020 ◽  
pp. 242-271
Author(s):  
Dickson Mubera Andala ◽  
Erick Mobegi ◽  
Mildred Nawiri ◽  
Geoffrey Otieno
Keyword(s):  
Mass Spectrometry ◽  
Metal Oxide ◽  
Inductively Coupled Plasma ◽  
Fluoride Removal ◽  
Fluoride Level ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Electrode Method ◽  
Filter Cartridge

Fluoride contamination in groundwater affects about 150 million people worldwide. In this study, the authors focused on synthesizing biopolymer metal oxide nanocomposite for fluoride removal. Nanocomposite material was done using SEM. As(V), Al, Ti, Zr, and Fe water samples were analysed by ICP-MS (inductively coupled plasma-mass spectrometry). Fluoride level was determined using the standard method – Ion-Selective Electrode method. Preliminary results indicate arsenic (V) removal was below the 10 ppb and fluoride less than 1.5 ppm as prescribed by WHO. The removal efficiency was after 60-70 minutes with recyclability of 11 cycles. The nanocomposite worked well in all pH ranges 6.5-8.5. A filter cartridge biopolymer metal oxide nanocomposite constituting of template aluminium homogenized in the aggregated network of chitosan was developed as an adsorbent for fluoride from the water with better adsorption limit.

Fabrication of Metal Oxide-Biopolymer Nanocomposite for Water Defluoridation

2021 ◽  
pp. 1264-1294
Author(s):  
Dickson Mubera Andala ◽  
Erick Mobegi ◽  
Mildred Nawiri ◽  
Geoffrey Otieno
Keyword(s):  
Mass Spectrometry ◽  
Metal Oxide ◽  
Inductively Coupled Plasma ◽  
Fluoride Removal ◽  
Fluoride Level ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Electrode Method ◽  
Filter Cartridge

Fluoride contamination in groundwater affects about 150 million people worldwide. In this study, the authors focused on synthesizing biopolymer metal oxide nanocomposite for fluoride removal. Nanocomposite material was done using SEM. As(V), Al, Ti, Zr, and Fe water samples were analysed by ICP-MS (inductively coupled plasma-mass spectrometry). Fluoride level was determined using the standard method – Ion-Selective Electrode method. Preliminary results indicate arsenic (V) removal was below the 10 ppb and fluoride less than 1.5 ppm as prescribed by WHO. The removal efficiency was after 60-70 minutes with recyclability of 11 cycles. The nanocomposite worked well in all pH ranges 6.5-8.5. A filter cartridge biopolymer metal oxide nanocomposite constituting of template aluminium homogenized in the aggregated network of chitosan was developed as an adsorbent for fluoride from the water with better adsorption limit.

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