ELEMENTAL analysis of halogens, phosphorus, and sulphur by oxygen flask combustion can be performed safely and economically using the OFCU-1 unit, says Exeter Analytical. Oxygen flask combustion is a common preparatory step when determining bromine, chlorine, fluorine, and iodine, as…
Tag: Exeter Analytical
Protocol shows way to improved sulphur determination
A PROPRIETARY inductive coupled plasma – optical emission spectroscopy (ICP-OES) sample preparation protocol allowing regular, reproducible detection of sulphur at trace levels of only tens of parts-per-million (ppm) has been developed by Warwick Analytical Service. The company says the new…
How to determine the CHN content of soils
A NEW application note demonstrating the precise determination of the carbon, hydrogen, and nitrogen (CHN) content of soil samples has been released by Exeter Analytical. This useful document includes details of the analytical methodology, used plus data demonstrating the quality…
Measuring total sulphur quickly and reliably
INDUCTIVELY Coupled Plasma – Optical Emission Spectrometry (ICP-OES) is a powerful and sensitive technique employed by Warwick Analytical Service to determine total sulphur in both organic and inorganic samples. The method can be used across a broad range of sample…
How to determine CHN in volatile samples
A KEY factor in predicting the performance of petroleum fuels and lubricants is the percentage of carbon, hydrogen, and nitrogen (CHN) they contain. However, the volatile nature of these materials means that conventional elemental analysis is difficult to carry out.…
Direct determination of CHN in filter residue
A PROTOCOL for the direct determination of total CHN (carbon, hydrogen, nitrogen) in filter samples using the Model 440 elemental analyser has been published by Exeter Analytical. The company says using this technology to determine the percentage C, H, and…
Factors affecting CHN analysis
THE CHN (carbon, hydrogen, nitrogen) elemental analyser is a mainstay of many analytical laboratories, and a new white paper from Exeter Analytical helps to throw some light on the factors affecting the performance of these instruments. Looking at the way…