Development of anion-exchange high-performance liquid chromatography-inductively coupled plasma mass spectrometry methods for the speciation analysis of inorganic selenium and iodine in groundwater

2014 ◽  
Vol 6 (20) ◽  
pp. 8380-8387 ◽  
Author(s):  
Zhe Nie ◽  
Lingna Zheng ◽  
Weiyue Feng ◽  
Chunli Liu
Keyword(s):  
Inductively Coupled Plasma ◽  
High Performance ◽  
Speciation Analysis ◽  
Inductively Coupled ◽  
Groundwater Samples ◽  
Icp Ms ◽  
Inorganic Selenium ◽  
Plasma Mass Spectrometry ◽  
Ultra Trace ◽  
Hlw Repository

An HPLC-ICP-MS method for simultaneous speciation of selenium and iodine has been developed. Species in groundwater samples from a potential Chinese HLW repository site were determined at ultra-trace level.

scholarly journals Analysis of Hazardous Elements in Children Toys: Multi-Elemental Determination by Chromatography and Spectrometry Methods

Molecules ◽  
2018 ◽  
Vol 23 (11) ◽  
pp. 3017 ◽  
Author(s):  
Katarzyna Karaś ◽  
Marcin Frankowski
Keyword(s):  
Inductively Coupled Plasma ◽  
High Performance ◽  
Total Content ◽  
Speciation Analysis ◽  
Metals And Metalloids ◽  
Preparation Methods ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

This paper presents the results of determination of hazardous metal (Cd, Cu, Cr, Hg, Mn, Ni, Pb, Zn) and metalloid (As, Sb) levels in toys available in the Polish market. Two independent sample preparation methods were used to determine the concentration and content of the metals and metalloids. The first one is defined by the guidelines of the EN-71 standard and undertook extraction in 0.07 mol/L HCl. This method was used to conduct speciation analysis of Cr(III) and Cr(VI), as well as for the determination of selected metals and metalloids. The second method conducted mineralization in a HNO3 and H2O2 mixture using microwave energy to determine the content of metals and metalloids. Determination of chromium forms was made using the high-performance liquid chromatography inductively coupled plasma mass spectrometry (HPLC-ICP-MS) method, while those of metals and metalloids were made using the ICP-MS technique. Additionally, in order to determine total content of chromium in toys, an energy dispersive X-ray fluorescence spectrometer (EDX) was used. The results of the analyses showed that Cr(VI) was not detected in the toys. In general, the content of heavy metals and metalloids in the studied samples was below the migration limit set by the norm EN-71.

scholarly journals Concrete Examination of 100-Year-Old Bridge Structure above the Kłodnica River Flowing through the Agglomeration of Upper Silesia in Gliwice: A Case Study

Materials ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 981
Author(s):  
Barbara Słomka-Słupik ◽  
Jacek Podwórny ◽  
Beata Grynkiewicz-Bylina ◽  
Marek Salamak ◽  
Bibianna Bartoszek ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
High Performance ◽  
Chloride Content ◽  
Technical Condition ◽  
Inductively Coupled ◽  
Bridge Safety ◽  
Free Chloride ◽  
Management Processes ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

The article analyzes the composition of concrete taken from various elements from a 100-year-old bridge in South Poland, so as to analyze its technical condition. The main methods applied during experimental work were: Designation of pH, free chloride content, salinity, XRD and SEM examinations, as well as metals determination using inductively coupled plasma mass spectrometry (ICP­MS), high-performance liquid chromatography (HPLC)-ICP-MS, and cold-vapor atomic absorption spectroscopy (CV-AAS). The concrete of the bridge was strongly carbonated and decalcified with an extremely high content of chlorides. The pH of the concrete was in a range from 10.5 to 12.0. Acid soluble components were between 9.9% and 17.6%. Typical sulfate corrosion phases of concrete were not detected. Friedels’ salt was found only at the extremity of an arch. The crown block was corroded to the greatest extent. Various heavy metals were absorbed into the concrete, likely from previous centuries, when environmental protection policy was poor. The applied research methodology can be used on bridges exposed to specific external influences. The acquired knowledge can be useful in the management processes of the bridge infrastructure. It can help in making decisions about decommissioning or extending the life cycle of the bridge. This work should also sensitize researchers and decision-makers to the context of “bridge safety”.

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