scholarly journals Platinum concentrations in urban airborne particles from Shanghai, China

2013 ◽  
Vol 10 (2) ◽  
pp. 169-173 ◽  
Keyword(s):  
Inductively Coupled Plasma ◽  
Ambient Air ◽  
The United States ◽  
Contamination Level ◽  
Urban Air ◽  
Airborne Particle ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Meteorological Influences ◽  
Plasma Mass Spectrometry

The PM10 airborne particle samples were collected at Shanghai from December 2003 to December 2005 in order to investigate platinum contamination in the urban air. The samples were analyzed by inductively coupled plasma mass spectrometry (ICP-MS). The results show that the average Pt concentration in the air of the center of Shanghai was 1.69±0.93 pg m-3 that the increment of the Pt concentrations in Shanghai air was no significant from December 2003 to December 2005, and that the seasonal variations of the Pt concentrations over two years are possibly due to meteorological influences (i.e., wind and rain). The analytical results of the sixteen PM10 samples simultaneously collected at four sampling sites with different traffic intensity in Shanghai show a clear dependence between Pt concentrations and traffic intensity, which suggests that the auto exhaust is the main emission source of Pt in Shanghai air. Compared with the Pt background value of 0.54±0.03 pg m-3, the Pt contamination in the ambient air of the center of Shanghai is significant. However, the Pt contamination level in Shanghai air is lower than one in urban air of some cities in Europe, the United States and Japan.

Quadrupole inductively coupled plasma mass spectrometry and sector field ICP-MS: a comparison of analytical methods for the quantification of As, Pb, Cu, Cd, Zn, and U in drinking water

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Héctor Hernández-Mendoza ◽  
Nancy Lara-Almazán ◽  
Abraham Kuri-Cruz ◽  
Elizabeth Teresita Romero-Guzmán ◽  
María Judith Ríos-Lugo
Keyword(s):  
Mass Spectrometry ◽  
Drinking Water ◽  
Inductively Coupled Plasma ◽  
The United States ◽  
Routine Analysis ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Relative Standard ◽  
Plasma Mass Spectrometry ◽  
Precision And Accuracy

Abstract A comparison was carried out between quadrupole inductively coupled plasma mass spectrometry (ICP-QMS) detection and sector field ICP-MS (ICP-SFMS) detection for quantification of elements such as arsenic (As), cadmium (Cd), copper (Cu), lead (Pb), zinc (Zn), and uranium (U) in drinking water. A drinking water sample obtained from the International Atomic Energy Agency was used for validation measurement methods. ICP-QMS and ICP-SFMS obtained recoveries of 95–107% and 95–105%, respectively. Moreover, the relative standard deviation for ICP-QMS was <5% in comparison with ICP-SFMS, which was <2%. The limits of detection obtained in ICP-MS and ICP-SFMS for each element were under ng L−1, except for Zn. Both methods were applied to evaluate these elements in drinking water for consumption in Mexico. According to Mexican Regulation for Human Drinking Water NOM-201-SSA1-2015 and Environmental Protection Agency (EPA) from the United States, the values are within the allowable limits. In conclusion, ICP-QMS and ICP-SFMS are excellent choices for measurements of these toxic elements in water samples because of high precision and accuracy in routine analysis minutes, while also exhibiting excellent precision and accuracy in routine analysis.

scholarly journals Determination of Metal Concentration in Road-Side Trees from an Industrial Area Using Laser Ablation Inductively Coupled Plasma Mass Spectrometry

Minerals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 175
Author(s):  
Jee Young Kim ◽  
Jaeseon Park ◽  
Jongwoo Choi ◽  
Jinwook Kim
Keyword(s):  
Mass Spectrometry ◽  
Laser Ablation ◽  
Metal Pollution ◽  
Tree Species ◽  
Inductively Coupled Plasma ◽  
Ambient Air ◽  
Pollution History ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

Historical pollution can be elucidated with variations of elements’ concentration in tree rings by using laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). However, the capacity of chemical elements’ absorption significantly depends on the tree species and element types. Metal concentrations in the rings for five species (Platanus occidentalis, Salix koreensis, Chamaecyparis obtusa, Pinus densiflora, Ginkgo biloba) were investigated in light of metal pollution history in ambient air of D industrial site located in Daejeon, Korea. The calibration for LA-ICP-MS was performed using cellulose-matrix matched standards with 13C normalization. Tree ring series except for Ginkgo sp. showed that the accumulation rates of Pb and Cd were higher between 1992 and 1999. Other elements, such as Fe, Cr, Mn, Cd, Zn, and Sr, showed a variation in the rings, likely due to the different physiological processes of element uptake and radial mobility. Concentrations of Pb and Cd in the annual rings of Pinus sp. corresponded to the metal monitoring data for the ambient air with the correlation coefficients of 0.879 and 0.579, respectively. Moreover, Cd in Platanus sp. and Pb in Salix sp. showed a positive correlation to ambient metal concentration compared to Chamaecyparis sp. and Ginkgo sp. Therefore, caution should be taken to select candidate elements as well as tree species to reconstruct the ambient air metal pollution history by measuring the concentration of metal in the tree ring.

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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