x ray fluorescence Articles
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List of 10 Soil Metal Testing Methods
Soil testing has become a must-check item for environmental testing. In recent years, countries around the world have attached great importance to soil testing, which has led to great progress in soil testing technology. At the same time, countries around the world have increased their investment in soil metal testing, using advanced technologies such as spectroscopic analysis technology, ...
By Lifeasible
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Case study - REDWAVE XRF - State-of-the-art technology for ore mining
Here, ore mining began in the fourth century - a date which is supported by remains of melting furnaces found in the small Styrian town called Eisenerz (the German word for iron ore). The name could not be more characteristic. The reddish terraces of the Erzberg, the largest open cast mine of Central Europe and, at the same time, the largest siderite deposit worldwide, are widely visible. It is ...
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Chemical and microstructural analyses for heavy metals removal from water media by ceramic membrane filtration
This study aims to investigate the ability of low cost ceramic membrane filtration in removing three common heavy metals namely; Pb2+, Cu2+, and Cd2+ from water media. The work includes manufacturing ceramic membranes with dimensions of 15 by 15 cm and 2 cm thickness. The membranes were made from low cost materials of local clay mixed with different sawdust percentages of 0.5%, 2.0%, and ...
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Get the Lead Out - Standards Aid in RoHS Compliance
RoHS, the seminal European sustainability directive, and others like it challenge manufacturers to eliminate hazardous substances in their products. With RoHS compliance deadlines ongoing through at least the next five years, and more to come from other regions and nations, ASTM Committee F40 is helping companies with testing standards and other resources. The recent introduction of the new ...
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Qualitative and Quantitative Analysis of Seafood by EDXRF
X- ray fluorescence analysis, in addition to its effectiveness in analysis of inorganic materials such as metals and ceramics, is also effective for the detection and quantitative analysis of minerals and heavy metals in foods. Not only can samples be analyzed directly without conducting time-consuming pretreatment, sensitive and accurate measurement is also possible using simple preparation ...
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LEAD-BASED PAINT TESTING
Abatement Project Management ACC controls all factors of lead-based colour abatement tasks on our customer's part. The ACC venture manger screens the contractor’s actions to make sure conformity with OSHA rules. Once abatement is accomplished, the ACC venture administrator performs a visible examination and, if the place is going to be re-occupied with children, approval remove choosing. ...
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EDXRF Analysis of Lead, Cadmium, Silver, Copper in Lead-Free Solder Materials
X-ray fluorescence analysis can be used to quickly and easily analyze samples in solid, powder, and liquid states nondestructively, and is therefore widely used as a screening technique for compliance with the RoHS/ELV directives. A large amount of lead-free solder is used for surface-mount circuit boards. Here we evaluated the sensitivity of analysis of Pb, Cd, Ag, and Cu in lead-free solder ...
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Lower costs, fewer delays - a highway expansion project applies XRF technology to obtain cost-effective remediation.
X-ray fluorescence (XRF) spectrometry is a non-destructive, analytical method used primarily to detect the metal composition in soil/solids samples. Portable XRF instruments can provide rapid, accurate analysis of heavy metal levels in soil on new construction or redevelopment sites. In response to the growing need for field analysis of metals, many of these units have been adapted for use in the ...
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Analyzing sulfur in soil and sediment with handheld XRF
Background Sulfur creates more than nasty odors. Exposure to low levels (0-10ppm) of hydrogen sulfide (H2S) causes irritation of eyes, nose, and throat; higher levels can cause headaches, dizziness, nausea and vomiting, coughing, and breathing difficulty. H2S and numerous other odor-causing compounds are generated as a result of organic material decomposition. In the case of the Muddy River in ...
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On-site elemental analysis of drywall with the Thermo Scientific Niton XL3t series XRF analyzer
Application Reports of headaches, nosebleeds, central nervous system disorders, and other serious health effects have been reported from those exposed to compounds emitted from Chinese drywall (CDW). Additionally, surface corrosion of metal objects, including jewelry, decorative plumbing fixtures, HVAC coils, and electrical wires have resulted in cosmetic and mechanical damages. These damages can ...
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Continuous Arsenic monitoring at US EPA Superfund site
A Cogent Environmental continuous heavy metals analyser, the OVA5000, has been configured to provide accurate Arsenic monitoring data at a US EPA Superfund site in New Jersey, USA, since 2005. The following information will outline the ways in which this technology has helped to protect the environment at the site, ensuring compliance with discharge consents and helping the remediation contractor ...
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The influence of past metallurgical activity on the concentration of heavy metals in the soil/grass system in Sibenik (Croatia)
Degree of heavy metal pollution in soil caused by a former Ferromanganese Plant (FMP) and aluminium factory was investigated and the potential of metal mobility and bioavailability was estimated. Elemental concentrations in soil, vegetation and soil extracts were determined by EDXRF. In the nearest vicinity of the factory, soil concentrations ranged as follows: Mn 12,700-342,000 ppm, Zn 200-1090, ...
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Assessment of levels and “health-effects” of airborne particulate matter in mining, metal refining and metal working industries
The increased awareness of occupational health, hygiene and safety in recent years has resulted in improvement of working conditions and in reducing workers’ exposure to many toxic substances. However, substantial hazards remain, the number of cases of occupational illness due to hazardous exposure is still high, and new cases will continue to occur if there are no further improvements. During ...
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Determination of the feasibility of using a portable x-ray fluorescence (XFR) analyzer in the field for measurement of lead content of sieved soil
Soil samples collected in housing areas with potential lead contamination generally are analyzed with flame atomic absorption spectrometry (FAAS) or other laboratory methods. Previous work indicates that field-portable X-ray fluorescence (XRF) analysis is capable of detecting soil lead levels comparable to those detected by FAAS in samples sieved to less than 125 μm in a laboratory. A ...
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Portable lead analyzer to locate source of lead
OBJECTIVE: To investigate the sources of lead in the environment in children with elevated blood, with the help of a Field Portable X-Ray Fluorescence Analyzer. METHODS: One hundred and seven school children were chosen for this study on a random basis, from Mangalore and Karnataka. Their blood lead was analyzed. Of the cases analyzed, 10 students whose blood lead level was more ...
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Lead (Pb) in Workplace Air by Niton 700 Series Field Portable X-Ray Fluorescence (XRF) Analyzer
Procedure: Air samples are collected by drawing workplace air, using personal sampling pumps, through 37-mm mixed cellulose ester (MCE) filters mounted in polystyrene cassettes. Samples are prepared for XRF analyses by transferring each filter, along with the support pad, to a special air filter sample holder, specifically designed for a Niton XRF analyzer. Three separate 60-second readings are ...
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Sample Handling Strategies for Accurate Lead-In-Soil Measurements in the Field and Laboratory
ABSTRACT The inhomogenous lead-in-soil matrix can present serious obstacles to accurate sample collection and handling. In typical lead-in-soil measurement, particle size related errors in sampling and sample handling often exceed all other sources of error. The magnitude of error can vary widely depending on the particulate nature of the lead contaminant and the effectiveness of control ...
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Detecting Arsenic in Soil using Field Portable X-Ray Fluorescence
Abstract Rapid, accurate on site determination of arsenic and heavy metal levels in soil is a powerful tool in efforts to rebuild and revitalize abandoned and under-utilized industrial properties. The EPA is actively spearheading initiatives to encourage assessment, clean-up and re-use of these industrial properties. In the case of heavy metals (often the eight RCRA metals Pb, As, Cd, Cr, Hg, ...
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Comparing Field Portable X-Ray Fluorescence (XRF) To Laboratory Analysis Of Heavy Metals In Soil
ABSTRACT Field portable x-ray fluorescence (XRF) continues to gain acceptance as a complement to traditional laboratory testing of metal contaminated soil. The quality of data produced by field XRF varies with site conditions, soil composition, and sample preparation. Quality assurance protocols for the field method usually require that a number of field samples be split and sent to a ...
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