For field applications, the WIZ probe is able to measure up to 4 analytes in a water column. Detection limits are down to low ppb for all typical reported compounds and deployment can be for up to 1 month unattended. Reliable methods are used for NH4 (fluorimetric)...
Using the Single Particle Optical Sizing (SPOS) technique, the accusizer is able to provide particle size distributions as particles versus size or any other distributions eg. such as volume % vs size etc. Importantly the total particle concentration can be shown or...
The Micromac unit is designed for industrial and environmental applications. It can be custom designed to meet the most challenging low levels encountered in environmental deployments,including TOC in sea water, to robust units that can work in tanneries. The analyzer...
Total N is measured in the same device with UV digestion + UV reduction for Total Nitrogen. Colorimetric, acidic digestion and UV Digestion is used for Total Phosphorus.
After a prolonged dry period, heavy rainfall in a catchment area can yield unacceptably high levels of organics and toxic analytes in a river system flash flood. Water-treatment plants that process this raw water with high agricultural analytes, then have flocculants...
The digestion of sulphide ores for analysis by AAS ,ICP or ICP-MS creates two potential problems. 1. Sulphide ores can contain silicates which are difficult to digest by aqua regia and require use of HF which requires special handling and safety...
History of the AAS In 1940 Alan Walsh was a young physicist working at the British Non Ferrous Metals Laboratories during World War II. His work included determination of metal composition from the debris of enemy bombers. He developed a number of methods for rapid...
For analytical spectroscopy, there are two main categories of instruments – based on either atomic absorption or atomic emission. An example of an instrument using atomic emission is an Inductively Coupled Plasma (ICP) Spectrometer, whilst an example of one...
The Alec range of equipment can be either powered by on board lithium battery or cabled power. The battery option means that difficult measuring locations such as tidal flow past reef atolls can be measured by merely anchoring the instrument against the coral. Most...
Zeta potential indicates the stability of a colloidal dispersion. A colloid is a particle, 10-8 to 10-6m in size which when mixed in a dispersing medium is termed a colloidal dispersion. Aerosols (solid or liquid colloids) in a gas (dispersing medium), emulsions...
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