source sampling instrument Articles
-
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. When a sample is irradiated with xrays, the source x-rays may undergo either scattering or absorption by sample atoms. This later process is known as ...
-
Field Evaluation of a Method for Estimating Gaseous Fluxes from Area Sources Using Open-Path Fourier Transform Infrared
This paper describes results from the first field experiment designed to evaluate a new approach for quantifying gaseous fugitive emissions of area air pollution sources. The approach combines path-integrated concentration data acquired with any path-integrated optical remote sensing (PI-ORS) technique and computed tomography (CT) technique. In this study, an open-path Fourier transform infrared ...
By Arcadis
-
Pinpointing a particle source with the Handilaz Mini II handheld aerosol particle counter
Pinpointing a particle source can be a challenge in cleanrooms and laboratory flow equipment where the movement of clean air (which is the purpose of the air handling system) can mask particle generators such as faulty filters, motors, robots, operators and residual dust. The Particle Measuring Systems Handilaz® Mini II handheld particle counter has two significant advantages to help ...
-
The determination of mercury at ultratrace levels using FIMS and amalgamation technique
The PerkinElmer Flow Injection Mercury System (FIMS) is used in combination with an amalgama¬tion preconcentration technique to determine Hg at ultratrace concentrations. Using a 10-mL sample volume, the instrumental detection limit is 0.3 ng/L. The method detection limit obtained in drinking water is 1.0 ng/L with a spike recovery of 100 ± 4%. The operating conditions for the ...
-
Method 301 Evaluation of Candidate conditional methods case study
A new metal emissions measurement and validation system has recently been developed that has the potential to significantly improve our understanding of metal emissions from a wide range of source categories. This system consists of: A continuous emission monitoring system (Xact-CEMS) An instrumental analyzer procedure (Xact-IAP) A sampling and analysis measurement method (XFM) A ...
-
What is an Occupational Health Consultant? How do I find one?
Occupational Health and Safety People engaged in manufacturing, the folks who make the products we all use every day, are exposed to a wide variety of chemical liquids, gases, vapors, fumes, fibers, dust, microbes, and other particulates, which all have the capacity to cause harm. Of course, just because something can hurt you, doesn’t mean that it will. Then again, even ordinary drinking ...
-
Instant Loss on Ignition Results for Trommel Fines
Cost-effective compliance with landfill tax regimes Many issues have been raised with HMRC’s proposed Loss on Ignition (LOI) testing regime for landfill taxes, including concerns that tests will take too long to be actionable and will cost too much to perform with any regularity. This may indeed be true for samples sent to a laboratory, but there is an alternative: the Computrac® ...
-
GC/MS analysis of a complex sample in DCM using hydrogen carrier gas
Summary Labs worldwide have recently found that helium has been in short supply, leaving a number of labs without carrier gas. Added to this, helium prices have doubled over the past 10 years causing a number of labs to look into alternative carrier gases for GC, such as nitrogen and hydrogen. As well as lower price and unlimited availability, hydrogen has a number of potential advantages over ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you