Determination of Heavy Metals in Water System of Beijing Urban Area and a Countermeasure to Remove them

2013 ◽  
Vol 448-453 ◽  
pp. 579-582 ◽  
Author(s):  
Ya Ru Liu ◽  
Hong Hong Yang ◽  
Nan Hua Liu ◽  
Jin Mei Nie ◽  
Cheng Min Cui ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Urban Area ◽  
Inductively Coupled Plasma ◽  
Copper Ion ◽  
Water System ◽  
Atomic Emission ◽  
Emission Spectrometry ◽  
High Concentration ◽  
Plasma Atomic Emission Spectrometry ◽  
Inductively Coupled

In this study, water samples were collected randomly from water system of Beijing urban area and analysed by inductively coupled plasma-atomic emission spectrometry (ICP-AES) method to determine the contents of harmful heavy metals (Hg, Cd, Zn, Cu, Ni, Cr, Sb, As and Pb). The concentrations of detected heavy metals were found between detection limit of the instrument to 387.196 mg/L. Among them, one sample gave a very high concentration of copper element. In order to get rid of this copper ion away, a chelating type fiber was used to treat the water sample. After treatment with chelating fiber, the concentration of copper was lowered to <10-5mg/L.

Determination of TOC, TP and TN in Water System of Beijing Urban Area

2014 ◽  
Vol 955-959 ◽  
pp. 3302-3305
Author(s):  
Ya Ru Liu ◽  
Nan Hua Liu ◽  
Jin Mei Nie ◽  
Cheng Min Cui ◽  
Zheng Wu ◽  
...  
Keyword(s):  
Urban Area ◽  
Inductively Coupled Plasma ◽  
Water System ◽  
Atomic Emission ◽  
Atomic Emission Spectrometry ◽  
Emission Spectrometry ◽  
Plasma Atomic Emission ◽  
Plasma Atomic Emission Spectrometry ◽  
Inductively Coupled

In this study, water samples were collected from water system of Beijing urban area and analyzed by inductively coupled plasma-atomic emission spectrometry (ICP-AES) method and total organic carbon analyzer to determine the contents of TOC, TP and TN. The results revealed that among the 133 samples there were respectively 16.54%, 28.57% and 39.85% samples’ detected TOC, TP and TN higher than the permitted values. It was especially serious about the sewage outlet along the riverside.

scholarly journals Atmospheric Deposition Of Heavy Metals In Toronto

2021 ◽  
Author(s):  
Muhammad Yousaf
Keyword(s):  
Heavy Metals ◽  
Atmospheric Deposition ◽  
Inductively Coupled Plasma ◽  
Atomic Emission ◽  
Emission Spectrometry ◽  
Mercury Species ◽  
Plasma Atomic Emission Spectrometry ◽  
Deposition Rates ◽  
Inductively Coupled ◽  
Glass Surfaces

Atmospheric deposition rates of heavy metals (As, Cd, Co, Cu, Hg, Mn, Ni, Pb, and Zn) were determined from July 2009−December 2010 in downtown Toronto. Atmospheric deposition samples were collected using samplers with plastic, glass and water surfaces from two rooftops (15 m and 59 m above ground) in the city core of Toronto. Mercury species were analyzed using Cold Vapor Atomic Fluorescence Spectrophotometer (CVAFS) and the rest of metals were analyzed by acid digestion combined with Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES). The results showed that the deposition of heavy metals was higher on water surface as compared to both the plastic and glass surfaces and that Cu, Mn, Pb and Zn showed higher deposition rates as compared to As, Cd, Co and Ni. The deposition rates were higher on Kerr Hall North (KHN) site indicating contribution from local sources. For total mercury (THg) and methyl mercury (MeHg), the deposition rates were higher on Jorgenson (JOR) site as compared to KHN site.

Determination of the Matrix Element Vanadium in the Potassium Metavanadate by Inductively Coupled Plasma Atomic Emission Spectrometry

2013 ◽  
Vol 740 ◽  
pp. 665-669
Author(s):  
Yong Cheng ◽  
Hui Xian Peng ◽  
Jin Hong Yuan
Keyword(s):  
Inductively Coupled Plasma ◽  
Atomic Emission ◽  
Atomic Emission Spectrometry ◽  
Emission Spectrometry ◽  
High Concentration ◽  
Plasma Atomic Emission Spectrometry ◽  
Inductively Coupled ◽  
The Matrix ◽  
Standard Solution

The potassium metavanadate samples were digested by hydrochloric acid and diluted with water to a constant volume, then the inductively coupled plasma atomic emission spectrometry (ICP-OES) was used to directly determine the content of 10 to 45% matrix vanadium. The matrix effects, spectral interference, background noise and other interference factors in the high concentration of potassium ions coexistence system were all examined in the paper. The results showed that although the coexisting alkali metal potassium significantly increased the ICP flame, the 1g/L potassium standard solution did not produce peaks in the scanning window of analysis line which substantially coincide with the reagent blank signal line, i.e., the 28% (or 0.28g/L) potassium contained in the potassium metavanadate did not interfere with the determination. Therefore, only the standard solution of vanadium was used to draw a calibration curve without the need of potassium matrix matching. In order to obtain a wide linear range and improve the detection precision and the accuracy of the matrix element vanadium, the sample dilution ratio and ICP spectrometer detection parameters were optimized, and the suitable sensitivity spectral lines and their detection integral and background correction regional were selected, the detection signal intensity of the high concentration vanadium is effectively regulated moderate, the detection range is covered from 10 to 45%, which fully meet the need for determination of vanadium in the potassium metavanadate (qualified products containing 37% vanadium). The results also showed that the background equivalent concentration is less than 5 μg/L, the relative standard deviation (RSD) is less than 1.0%, the detection results consistent with the redox titration method. The method is simple and fast, accurate and reliable, the precision is high. The inspection cycle is 10 to 15 minutes, which is greatly shorter than the chemical titration that takes 2 to 3 hours, so that the method meet the requirements of fast-paced production site of the potassium metavanadate product quality inspection and control.

scholarly journals Content of heavy metals and arsenic in soils near Sharra landfill (Tirana, Albania)

2021 ◽  
Vol 265 ◽  
pp. 03003
Author(s):  
Natalia Chernykh ◽  
Yulia Baeva ◽  
Anamaria Thoma
Keyword(s):  
Heavy Metals ◽  
Inductively Coupled Plasma ◽  
Negative Impact ◽  
Atomic Emission ◽  
Capital City ◽  
Emission Spectrometry ◽  
Background Concentration ◽  
Plasma Atomic Emission Spectrometry ◽  
Inductively Coupled ◽  
The Republic

The paper presents the results of a comparative assessment of the degree of pollution of subtropical brown soils with a number of heavy metals (V, Mo, Co) and arsenic in the zone of influence of solid municipal waste landfill “Sharra”. The landfill is located about 7 km southwest of the center of Tirana. Until the early 1990s it was used mainly for the disposal of industrial waste, subsequently it became an uncontrolled open dump and is now the dumping area for all waste of the capital city of the Republic of Albania. Total metal and As contents were determined by inductively coupled plasma atomic emission spectrometry in samples from 14 sites at different distances from the landfill body. Concentrations of V - in 1.2-1.3 times, Mo - more than in 2.2-4.4 times, Co - in 1.2-1.5 times and As - more than in 3.4 times were exceeded background concentration. It was also revealed 1.7 times higher than the established normative value for As in soils. The obtained results confirm the hypothesis about the negative impact of the Sharra landfill on the adjacent territories.

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