17 Articles found
Thermo Scientific Niton Analyzers Articles
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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 ...
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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 ...
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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, ...
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Portable PMI Instruments
Positive material identification (PMI) is a powerful methodology for assuring that manufacturing companies operate with greater profit, more efficiency, and the highest possible leveis of safety. The requirement for PMI of alloy materials in ...
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Lead in Paint and Soil in Karnataka and Gujarat, India
Blood lead surveys in several areas of India have found very high percentages of children with elevated blood lead levels. Fifty-three percent of children under 12 years of age in a sevencity screening had blood lead levels equal to or greater than ...
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Superfund Innovative Technology Evaluation (SITE) Innovative Technology Verification for Field Measurement Technology of Mercury in Soil and Sediment
Five different companies attended the Superfund Innovative Technology Evaluation “Innovative Technology Verification for Field Measurement Technology of Mercury in Soil and Sediment” during 2003. These reports are all now available ...
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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 ...
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Arsenic in Soil and CCA Treated Wood by Field Portable XRF
Chromated copper arsenate (CCA) has been the most widely used wood preservative for decks, playgrounds and exterior housing structures. However, in recent years, issues surrounding the use of CCA preservative chemical have escalated, prompting ...
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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, ...
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Lead (Pb) on Surfaces by a Portable X-Ray Fluorescence (XRF) Analyzer
This surface sampling method was developed to provide a reliable, portable procedure that will provide prompt measurement of surface contamination levels of lead. Information gained from samples taken during an initial walk-through portion of ...
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Data Quality in Lead Dust Wipe Measurements
Considerable investment has been made in studies to determine the usefulness of fieldportable XRF for the analysis of dust wipes on-site. With an estimated 38 million (40%) of housing units in the United States having Lead Based Paint inside ...
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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 ...
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FIELD PORTABLE X-RAY FLUORESCENCE SPECTROMETRY FOR THE DETERMINATION OF ELEMENTAL CONCENTRATIONS IN SOIL AND SEDIMENT
The FPXRF technologies described in this method use sealed radioisotope sources to irradiate samples with x-rays. X-ray tubes are used to irradiate samples in the laboratory and are beginning to be incorporated into field portable instruments. ...
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EPA Method 6200 and Field Portable X-ray Fluorescence Safety
Overview: These training notes provide a brief introduction to x-ray fluorescence (XRF) analysis of soils. XRF has been used to characterize a broad range of materials for over twenty years. Recent advances in digital electronics and semi-conductor ...
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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 ...
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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, ...
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Minneapolis Offers Free Soil Testing to Raise Public Awareness of Lead Hazards
In 1998, the City of Minneapolis designed and implemented an innovative public outreach program to provide free access to soil testing for lead content to all Minneapolis residents. Soil testing kits were made available through local hardware ...