Metal Analysis Articles on Environmental XPRT

Heavy Metals Analysis

Correct measurement results are a prerequisite for compliance with limit values, which are always specified as total metals. Heavy metals such as copper, nickel, zinc, etc. can be quickly and reliably determined in aqueous samples with the help of the LANGE cuvette tests. Matrix factors (e.g. interference ions, colour, turbidities, etc.) may have a negative impact on themeasurement and cause ...

May 1, 2007

Analysis of precious metals in jewelry

Abstract For thousands of years, man learned the craft of making jewelry from gold. Gold is a noble metal which does not react with the air and has a shiny yellow color.Over the years, alloying of the gold was necessary to improve its properties since pure gold is too soft to be used for jewelry. Alloying of the gold is usually by low-cost metals such as copper, zinc, silver or nickel. ...

Aug. 1, 2017

By Xenemetrix Ltd.

Analysis of wastewater for metals using ICP-OES

The analysis of wastewater for trace metal contamination is an important step in ensuring human and environmental health. Wastewater is regulated differently in different countries, but the goal is to minimize the pollution introduced into natural waterways. In the U.S., the Environmental Protection Agency (EPA), in conjunction with the states, negotiates a discharge permit through the National ...

Oct. 28, 2011

By PerkinElmer, Inc.

X-ray fluorescence analysis of additives and wear metals in used lubricating oils

The determination of metal concentrations in lubricating oils is a very important diagnostic development. Such analysis dates back over 50 years, when one of its earliest uses was to assess engine oil from trains. Today, the analysis of both new and used lubricating oils, as well as the monitoring of trends in the metal concentrations and additives they contain, has become an essential control. ...

Jan. 17, 2007

By PANalytical

Retention of heavy metals by stormwater filtration systems: breakthrough analysis

Biofiltration systems are widely used to mitigate the impacts of stormwater on receiving waters, however their long-term capacity to retain heavy metals has not previously been assessed. Accelerated-dosing laboratory experiments were used to assess the likelihood of breakthrough occurring for three different types of soil-based filter media that are commonly used in stormwater biofilters. In all ...

Jan. 1, 2011

By IWA Publishing

Equilibrium analysis for heavy metal cation removal using cement kiln dust

Ion exchange, reverse osmosis, and chemical precipitation have been investigated extensively for heavy metal uptake. However, they are deemed too expensive to meet stringent effluent characteristics. In this study, cement kiln dust (CKD) was examined for the removal of target heavy metals. Adsorption studies in completely mixed batch reactors were used to generate equilibrium pH adsorption ...

Sep. 29, 2014

By IWA Publishing

Oil and metal price movements and BRIC macro–economy: an empirical analysis

Brazil, Russia, India, and China are the four fastest growing economies to emerge at the dawn of the new century. Concisely referred to as BRIC, the growth of these states has transferred sources of wealth and capital. To fuel such rising economies requires resources. In particular, food, construction materials, and energy are necessary to sustain BRIC growth. This paper will ultimately examine ...

Feb. 10, 2012

By Inderscience Publishers

Evaluation of Sampling and Field-Filtration Methods for the Analysis of Trace Metals in Ground Water

Selected ground water sampling and field-filtration methods were evaluated to determine their effects on field parameters and trace metal concentrations in samples collected under several types of field conditions. The study focused on conditions where traditional approaches may produce turbid samples, which often leads to filtration of suspended particles from the sample before laboratory ...

Jan. 1, 2004

By QED Environmental Systems

Case study - Sheet metal fabrication & surface wipe analysis

A manufacturing company uses cutting oils to produce sheet metal to assemble elevators. The metal must be cleaned after production. Wipe samples were collected by the client and sent to Sitelab to monitor and adjust a new cleaning system ...

Mar. 30, 2016

By Sitelab Corporation

Are nanosized or dissolved metals more toxic in the environment? A meta‐analysis

Recently, much has been written about the utmost urgency of elaborating the regulations for engineered nanomaterials. It is required from both politicians, to protect people from potentially adverse effects of nanomaterials, and from industry representatives, so that they can prove to have carefully and cautiously produced their nanoproducts and avoid potential court proceedings. However, ...

Aug. 26, 2014

By John Wiley & Sons, Ltd.

Analysis of trace metals in drinking water with the optima 7000 DV ICP-OES

With the development of mining, smelting and other industrial activities, heavy metals are increasingly being found in freshwater sources which can pose severe threats to human and environmental health. Pollution by heavy metals (such as Cd, Pb, etc.) not only affects the productivity of crops, but also the quality of the atmosphere as well as water bodies and threatens the health and life of ...

Oct. 28, 2011

By PerkinElmer, Inc.

Mining Metals Solution Treatability

Integrated Engineers, Inc. conducted a treatability test on water containing metals in solution from a mining company’s analysis labs. Initial pH was below 2, so it was adjusted to 6.5 to 7.5 using caustic. This lowers the solubility of the metals, and helps the Floccin to work better. The Floccin-1105 worked well at a dosage of 2.1 grams/ 1,000 ml of wastewater (treatment dosage of .9 lbs. of ...

Jan. 29, 2009

By Integrated Engineers Inc.

Heavy Metals in Waste

Untitled Document Summary and discussion The aim of this report has been to demonstrate the existing knowledge regardng the harmful effects of heavy metals, the ...

Jan. 1, 2002

By European Commission, Environment DG

Heavy Metals in Vehicles

Untitled Document Introduction Starting from September 1999, Ökopol has been performing a study on heavy metals in vehicles which was commissioned by DG ...

Jan. 1, 2000

By European Commission, Environment DG

Mercury Analysis

Characteristics of Mercury What is Mercury? Mercury is a naturally occurring silver-colored metallic element noted for its occurrence as a liquid at room temperature and toxic to living organisms. This silvery, opaque liquid metal is very dense, yet has a high surface tension that causes it to form tiny perfect spheres in the pores of the rocks it is found in. It is ...

May 31, 2007

By HORIBA Europe GmbH

New ways for Metal Recycling

REWAVE XRF 3-way-sorting in innovative “Free-Fall”-design Recycling of metal and aluminium knows no limits because it can be remelted as scrap indefinitely. Metals, however have to be separated from non-metallic impurities, and different metals have to be sorted in pure fractions to be used as secondary raw materials substituting primary resources. Especially when it ...

Feb. 2, 2017

By REDWAVE - a division of BT-Wolfgang Binder

HDXRF vs ICP for Plated Metals

When measuring plated metal samples, it is not uncommon for results from inductively coupled plasma (ICP) analysis to be different than results from HDXRF analysis. Take a look at our application note and learn more about: Why do ICP and HDXRF results differ? How can I determine if my sample is plated? How can I minimize the variation in results for plated metals? ...

Jul. 13, 2017

By X-Ray Optical Systems (XOS)

Analysis of metal concentration levels in water, sediment and fish tissues from Toledo municipal lake by applying SR-TXRF technique

The main objective of this study was to evaluate the metal content in water and sediment from the Toledo municipal lake, as well as the concentration levels of heavy metals in muscle and liver of four fish species. A digestion procedure was performed in all fish samples. Metal analysis was performed by using the Synchrotron Radiation X-ray Fluorescence technique. The accuracy and validity of the ...

Jan. 1, 2011

By IWA Publishing

Designing a relational database for tracking and analysis of atmospheric deposition of mercury and trace metals in the Pensacola (Florida) Bay Watershed

The need to track and analyse the atmospheric deposition of mercury and trace metals in the Pensacola (Florida) Bay Watershed in recent years has resulted in the need for a data management system that will allow data to be efficiently stored, checked for errors, manipulated, retrieved for analysis and shared within the research community. In this paper, we describe a relational database that was ...

Jun. 18, 2012

By Inderscience Publishers

The effect of heavy metals on the activated sludge process and its microbial community analysis using 16S ribosomal DNA

The effect of heavy metal shock loading on biological treatment systems was studied by traditional methods and molecular biological techniques. Two kinds of SBR (sequence batch reactor) operation units, unacclimated and acclimated activated sludge systems, were studied. The addition of special nutrients and powdered activated carbon (PAC) to stimulate heavy metal uptake and recovery were studied. ...

Jan. 26, 2004

By Inderscience Publishers

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