scholarly journals Quantitative analysis of trace metals in the Raritan River with inductively coupled plasma mass spectrometer

2020 ◽  
Vol 20 (8) ◽  
pp. 3183-3193
Author(s):  
Ya-nan Li ◽  
Zhihui Duan ◽  
Jing Li ◽  
Zhiwei Shao ◽  
Juncheng Mo ◽  
...  
Keyword(s):  
Trace Metals ◽  
River Basin ◽  
Mass Spectrometer ◽  
Inductively Coupled Plasma ◽  
Internal Standard ◽  
Water Concentration ◽  
Sampling Station ◽  
Water Quality Criteria ◽  
Potential Health ◽  
Inductively Coupled

Abstract Raritan River is the largest river basin in New Jersey, providing the water supply for one million people in seven counties nearby. In this study, water samples collected from 11 Raritan River standard sampling stations along the Raritan Estuary to the Atlantic Ocean were analyzed for concentrations of trace metals and their isotopes. The concentration of each trace metal was measured with inductively coupled plasma mass spectrometer (ICP-MS), with normalization of internal standard and correction with acid blanks. The metal concentration levels were compared to the National Recommended Water Quality Criteria (NRWQC). Results showed that the metal concentrations generally increased with the sampling station number, indicating that more trace metals were distributed in seawater than freshwater along the river basin. None of the sampling stations had concentrations of 52Cr or 208Pb exceeding the NRWQC. For 64+66Zn, only the water concentration (230 μg/L) at station 7 has exceeded the NRWQC. The concentrations of 75As at stations 9, 10, and 11 have exceeded the NRWQC, possessing potential risk for causing chronic disease. Furthermore, 63+65Cu and 106+111Cd concentrations at all sampling stations exceeded the limit set by NRWQC. Considering the potential health hazards of these trace metals, the sampling sites with excessive concentrations should be monitored.

scholarly journals The applications of a commercial gas/liquid separator coupled with an inductively coupled plasma mass spectrometer

1992 ◽  
Vol 14 (1) ◽  
pp. 17-23 ◽  
Author(s):  
Peter Hitchen ◽  
Robert Hutton ◽  
Christopher Tye
Keyword(s):  
Mass Spectrometer ◽  
Inductively Coupled Plasma ◽  
Analytical Data ◽  
Hydride Generation ◽  
Internal Standard ◽  
Ionization Source ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Liquid Separator ◽  
High Chloride

A commercially available hydride generator, with a novel membrane gas-liquid separator, has been coupled to a new ICPMS instrument which itself features many unique design considerations. Little or no optimization of the mass spectrometer or ionization source was required to obtain excellent analytical data; and a variety of matrices have been analysed.The elements As and Se are usually used to demonstrate the effectiveness of a hydride generation system, and these are of particular importance, bearing in mind potential Ar molecular overlaps with isotopes of interest. The flexibility of the hydride generation ICP-MS system is highlighted, with the inclusion of analytical figures of merit for the elements Sn, Sb, Ge and Hg, as well as As and Se. Data obtained by ‘standard’ pneumatic nebulization on the ICP-MS is compared with that obtained with the hydride generator for all of the elements.Improvements of between 50 and 100 times were gained in measurements of three sigma detection limits for all elements in the determinations, including Hg. Measurements were made on several isotopes for particular elements, and the data is included for the purposes of comparison. Stabilities of between 1 and 2.5% were obtained for 0.5 ppb solutions over 10 min measurement periods, all data is presented without using an internal standard.Finally, analytical data from seawater standards, spiked with low levels of As and Se and calibrated against aqueous standards, demonstrate excellent recoveries. This is of particular interest bearing in mind the well-documented molecular interferences from high chloride matrices on As and Se analysis.

scholarly journals Composition of Trace Metals in Dust Samples Collected from Selected High Schools in Pretoria, South Africa

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
J. O. Olowoyo ◽  
L. L. Mugivhisa ◽  
Z. G. Magoloi
Keyword(s):  
High Schools ◽  
Trace Metals ◽  
Trace Metal ◽  
Inductively Coupled Plasma ◽  
Common Source ◽  
Residential Areas ◽  
Potential Health ◽  
Inductively Coupled ◽  
Positive Effects ◽  
Recess Period

Potential health risks associated with trace metal pollution have necessitated the importance of monitoring their levels in the environment. The present study investigated the concentrations and compositions of trace metals in dust samples collected from classrooms and playing ground from the selected high schools In Pretoria. Schools were selected from Pretoria based on factors such as proximity to high traffic ways, industrial areas, and residential areas. Thirty-two dust samples were collected from inside and outside the classrooms, where learners often stay during recess period. The dust samples were analysed for trace metal concentrations using Inductively Coupled Plasma-Mass Spectrometry (ICP-MS). The composition of the elements showed that the concentrations of Zn were more than all other elements except from one of the schools. There were significant differences in the concentrations of trace metals from the schools (p<0.05). Regular cleaning, proximity to busy road, and well maintained gardens seem to have positive effects on the concentrations of trace metals recorded from the classrooms dust. The result further revealed a positive correlation for elements such as Pb, Cu, Zn, Mn, and Sb, indicating that the dust might have a common source.

scholarly journals Speciation of organometals using a synchronizing GC-EIMS and GC-ICPMS system for simultaneous detection

2014 ◽  
Vol 29 (6) ◽  
pp. 1132-1137 ◽  
Author(s):  
Lucia D'Ulivo ◽  
Lu Yang ◽  
Yong-Lai Feng ◽  
John Murimboh ◽  
Zoltán Mester
Keyword(s):  
Gas Chromatography ◽  
Mass Spectrometer ◽  
Inductively Coupled Plasma ◽  
Simultaneous Detection ◽  
Electron Ionization ◽  
Ionization Mass ◽  
Inductively Coupled

Accurate quantitation and characterization of organometals are successfully achieved by splitting the gas chromatography (GC) flow to both an electron ionization mass spectrometer (EIMS) and an inductively coupled plasma mass spectrometer (ICPMS).

Sign in / Sign up

Export Citation Format

Share Document