trace analysis Articles
-
Titanium as an indicator of residual soil on arid-land plants
Titanium (Ti) has been suggested as a soil contamination indicator for plant samples slated for trace element analysis because it is abundant in soil but not in plants. Based on results from our survey of regional soils and plants for cesium (Cs), we sought to confirm Ti as a valid soil contamination indicator reasoning that there are three sources of Ti associated with plant samples: (i) ...
-
Determination of trace elements composition in dawadawa, a food condiment used in West and Central Africa
Dawadawa, obtained by alkaline fermentation of the matured dawadawa pod, is a culinary product used to enhance taste, flavour and intensify meatiness in soups, sauces and other dishes in West and Central Africa. It is believed to cure cholera, stomachache, diarrhea, bronchitis, pneumonia, leprosy, hypertension, and pain in the bones. The trace element contents of the fermented dawadawa pods were ...
-
Elemental composition analysis in lichens transplanted to the western region of Catamarca, Argentina
Thalli of the lichen Parmotrema austrosinense were collected in their natural non-polluted habitat and transplanted to 18 monitoring sites within an area of the western region of Catamarca province (Argentina) where fruticose lichens are absent. This region is going through a reactivation phase, owing to large-scale mining development and agricultural expansion. The concentrations of 25 elements ...
-
Element-enrichment factors in Parmotrema bangii and Cryptomeria japonica of Portuguese islands of the central North Atlantic
Owing to their abundance and ability to accumulate airborne elements, the epiphytic lichen Parmotrema bangii (Vain.) Hale and bark from its phorophyte, the Japanese cedar Cryptomeria japonica (L. fil.) D. Don, were chosen as atmospheric biomonitors and collected at five islands of the Azores archipelago, in the central North Atlantic - Sao Miguel and Santa Maria (eastern group); Terceira, Sao ...
-
Spatial variability of sedimentological properties in a large Siberian lake
The analysis of spatial variability of lake sediment properties in Lake Lama, Central Siberia is presented. The aims were to characterize the spatial structure in lake sediment composition, to determine major spatial patterns of sediment properties by calculating estimates at locations where no samples were available, and to assess the main processes determining these patterns. Sediment ...
-
Determination of macro, micro nutrient and trace element concentrations in Indian medicinal plants using instrumental neutron activation analysis and atomic absorption spectroscopy techniques
Specific parts (fruits and seeds) of different medicinal plants often used in Indian Ayurvedic system were analysed for 18 elements (K, Mn, Na, Fe, Zn, Cu, Co, Br, Sm, Cl, La, Al, Cr, Ca Cd, Ni, Pb and Hg) by employing instrumental neutron activation analysis (INAA) and atomic absorption spectroscopy (AAS) techniques. The samples were irradiated with thermal neutrons in a nuclear reactor and the ...
-
Next-generation OES analysis for total metals control
There’s never been a more demanding time for those in the metals industry. Foundries and steel plants are under increasing pressure to use scrap materials in the melt. Supply chains are getting more complex and perhaps less reliable. Legislation for trace elements is getting ever tougher. The result is that to be able to consistently produce a profitable, high quality product that meets all ...
-
Fast, Sensitive, and Cost-effective ICPE Spectrometry Analysis of Trace Metals in Water by EPA Method 200.7
Introduction The Shimadzu ICPE-9820 multi-type ICP atomic emission spectrometer is the ideal instrument for running EPA Method 200.7. The ICPE-9820 permits simultaneous analysis of all elements, at all wavelengths, allowing high-throughput analysis with little need for dilution. The large 1-inch CCD detector with over 1 million pixels measures 110,000 wavelengths. Overflow channels prevent ...
-
Matrix LIMS Brings Time Savings and Efficiency Gains - Case Study
By replacing an inflexible LIMS with MATRIX Gemini LIMS, the analytical laboratory at a leading metal refiner has been able to incorporate 100% of its test records and results. The Autoscribe Informatics LIMS solution can be easily configured to meet the laboratory workflow rather than laboratory practices being adjusted to fit the LIMS. Ongoing in-house configuration has refined procedures to ...
-
Analyses of trace elements on quartz surfaces in sulfidic mine tailings from Kristineberg (Sweden) a few years after remediation
Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) has been applied to determine the elemental composition of the surface layer, as well as of the first interior layer, of quartz grains from the mine tailings from Kristineberg (northern Sweden) in order to determine concentration gradients between these two layers. The quartz grains were collected from the oxidized and ...
-
Analysis of mine water from four decommissioned pits in south-western Ghana – implications for remediation programmes for mine closure
Research into water quality status of accumulated water in decommissioned pits is a grey area in Ghana and could be of significant benefit in the effectiveness of remediation of pits after mining. Water sampled from four decommissioned pits in Amansie West District were analysed for their water quality status. Seasonal variations of physico-chemical parameters for determining water quality ...
-
From Mining to High-Purity Metals
From Mining to High-Purity Metals: Efficient Ways for Elemental Analysis In terms of elemental analysis, the mining value chain has vastly different requirements. During early exploration and exploitation mostly major contents of elements in raw materials need to be determined. In later process stages – for example during production of high-purity metals and alloys – trace and ...
-
Environmental Case Studies
Also see how we have already helped Environmental Scientists do what they are best at, please click the links below for further details of some of our Environmental ...
By CSols Ltd.
-
Ultrapure Water for Determination of Toxic Elements in Environmental Analyses
Abstract In this paper the importance of reagent water quality for toxic element environmental analyses is discussed, and the suitability of fresh ultrapure water produced using Merck water purification systems for ICP-OES and ICP-MS trace element analyses in environmental laboratories is demonstrated. Key words or phrases Trace elements, metals, toxic elements, ICP-MS, ICP-OES, contamination, ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you