Analytical Services for the Environmental Sector

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Waste Derived Fuels

As the world population continues to grow and expand, so does the volume of waste produced. As a way of reducing dependency on fossil fuels, and also utilising the guaranteed supply of Municipal Solid Waste (MSW), an alternative fuel supply known as Waste Derived Fuel is becoming progressively more popular as a viable alternative to traditional fuels.

Knowing your A/A Split from your Elbow

The term Total Petroleum Hydrocarbons (TPH) still remains poorly defined so that TPH data provided by laboratories is prone to disparity according to the analytical procedure undertaken. This data may be required for regulatory compliance, risk assessment, investigation or remediation. An appreciation of the methodology and terminology will therefore assist in scheduling the most appropriate analytical procedure.

Speciated Mercury

Mercury is a naturally occurring element that is found in air, water and soil. The symbol for mercury is Hg and it comes from its Greek name, hydrargyrum, which means “liquid silver”

Mercury exists in various forms:

• Elemental mercury
• Inorganic mercury compounds
• Organic mercury compounds

The environmental mobility and toxicity of mercury in a soil profile depend on its speciation. Alkyl mercury species such as methylmercury are at least an order of magnitude more mobile than inorganic mercury species, and thus are more toxic and more readily bioaccumulated. (EPA Method 3200 – http://1.usa.gov/1VVzkis ).

Scheduling Environmental Samples for Metals Testing

What is the difference between Metals analysis by ICP-OES and ICP-MS?
Inductively Coupled Plasma (ICP) methodologies utilise an argon plasma operating at approximately 10000oK (significantly hotter than the surface of the sun).

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