metal analysis Articles | Environmental XPRT

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. ...

Jul. 31, 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. 27, 2011

By PerkinElmer, Inc.

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. 25, 2014

By John Wiley & Sons, Ltd.

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. 29, 2016

By Sitelab Corporation

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 ...

Dec. 31, 2010

By IWA Publishing

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 30, 2007

By HORIBA Europe GmbH

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. 9, 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 ...

Dec. 31, 2003

By QED Environmental Systems, Inc

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. 27, 2011

By PerkinElmer, Inc.

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. 28, 2014

By IWA Publishing

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. 16, 2007

By Malvern Panalytical B.V. is a Spectris Company

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 ...

Dec. 31, 1999

By European Commission, Environment DG

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 ...

Dec. 31, 2001

By European Commission, Environment DG

Black-odor water analysis and heavy metal distribution of Yitong River in Northeast China

The black-odor mechanism of Yitong River was analyzed based on survey and monitoring results. We found that organic matter is the main pollution source of Yitong River and its tributaries. A black-odor evaluation model that can describe the pollution of the Yitong River water system was developed, and this model has the parameters I = 0.21 [CODCr] + 0.18 ...

Jun. 22, 2017

By IWA Publishing

Analysis of trace metals in surface and bottled water with the optima 7300 DV ICP-OES

Heavy metals are among the most significant freshwater pollutants and pose severe threats to geographical biodiversity. Pollution by heavy metals such as Cd, Pb, etc. not only affects the productivity of crops, but also compromises the quality of the atmosphere and water bodies. By propagation through the food chain, this type of pollution also threatens the health and life of animals and human ...

Oct. 27, 2011

By PerkinElmer, Inc.

Analysis of Lead in Toys

Important and always current is the analysis of lead in toys for children. Details about the effective sample comminution with FRITSCH Mills. Lead is a toxic heavy metal. Approx. 90 % of the incorporated lead is deposited in the bones and the teeth. Because lead is released very slowly, it will be accumulated over the time in the body. This is dangerous especially for children. The European ...

May 18, 2014

By Fritsch Milling and Sizing

Characteristic of wastewater and their analysis

Wastewater containing chromium and other heavy metals, is highly toxic effluents which require high-quality and efficient purification. Such effluents formed during electroplating, other types of chemical, electrochemical surface treatment of metal products such as chromium-plating, nickel-plating, copper-plating, zinc-plating, cadmium-plating and also during some technological ...

Jan. 12, 2014

By GlobeCore GmbH

Analysis of build-up of heavy metals and volatile organics on urban roads in gold coast, Australia

Urban water quality can be significantly impaired by the build-up of pollutants such as heavy metals and volatile organics on urban road surfaces due to vehicular traffic. Any control strategy for the mitigation of traffic related build-up of heavy metals and volatile organic pollutants should be based on the knowledge of their build-up processes. In the study discussed in this paper, the ...

Dec. 31, 2010

By IWA Publishing

Cluster analysis approach to identify metal sources in bottom sediments of Sultan Marsh canals, Turkey

The aim of this study was to determine heavy metal contents of the bottom sediments in Sultan Marsh water canals and drainage canals and possible sources of those heavy metals. The dendogram based on cluster analyses of the elements revealed two distinct groups of metals. There was a strong, positive correlation between some elements and their possible sources. Fe, Mn, Al, Ti, Cu, Zn and Cd ...

Feb. 2, 2009

By Inderscience Publishers

Analysis of the heavy metal pollutants in sediment samples collected from Thane Creek of Maharashtra, India

The wetland of Thane Creek, located at Thane, Mumbai, India, has attracted much attention of environmental biologists over the last few decades, as this creek has been subjected to a lot of pollution from the Asia's biggest Thane–Belapur industrial complex located at the south of Mumbai harbour along the west coast of India. This paper advocates ecological studies with special reference to the ...

Jun. 23, 2013

By Inderscience Publishers

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