Laboratory activities occupy a floor space of some 1400 m2. They are a core component of our operations: they support and accompany environmental engineering projects, studies and activities, delivering high-quality analytical data.
Our laboratories are a highly reliable source of environmental analyses
and have built massive experience especially in the oil sector, thanks to many years of work for the Sarlux refinery.
The official list of tests is available at the laboratory or from the Databank section of the Accredia website, by entering accreditation number 1517 in the page “testing laboratories”.
Our chemical laboratory performs tests on air, water, soil, waste, emissions and occupational hygiene.
It is divided into several analysis areas: chemistry, chromatography, spectroscopy and microscopy.
Sample preparation and chemical analysis
Extraction of phenolic compounds (preparation for gas chromatography)
In this area, the sample is prepared (water, soil, waste) to ensure the analytical chemistry tests are performed in optimum conditions, delivering high-quality results.
This sector also takes direct readings of the chemical-physical parameters of waters (wastewater, drinking water, groundwater and seawater), soils (agricultural, from polluted sites or remediated) and industrial waste, as well as readings for emission and occupational health monitoring.
GC-MS (gas chromatography mass spectrometry) interfaced with P&T (purge and trap)
The chromatography area performs highly accurate qualitative and quantitative analyses of all types and classes of organic compounds to detect their presence, even in traces, in various environmental compartments.
The compounds are analysed either individually or by class using the latest and most sophisticated purification and detection systems.
With the support of the other departments of our organisation, the laboratory can operate on solid, liquid and gaseous samples, both as collected or after extraction and/or purification.
Spectroscopy and microscopy
ICP-OES (inductively coupled plasma optical emission spectroscopy)
This laboratory has equipment for atomic and molecular spectroscopy, X-ray fluorescence and optical microscopy.
During processing, the most appropriate technique is used, allowing for example quantitative determination of the compounds solutions (spectroscopy) or in solid samples (microscopy).
The use of spectroscopy (e.g. NMR, UV, Raman, near/mid infrared) provides a very fast and relatively inexpensive alternative to estimate the physicochemical properties and the refining yields of crudes and their mixtures at site, using chemometric techniques.
The petroleum laboratory mainly handles crude oil testing.
This includes mainly the fractional distillation of crude oil, quantitative determination and qualitative analysis of the different fractions extracted, with chemical-physical examinations on various types of compartments.
Basic laboratory instruments
Vacuum and atmospheric TBP distillation system
Gas chromatographs for LPG and naphtha composition analysis
Elementary C-H-N analyser and combined chemiluminescence and UV fluorescence analyser for the analysis respectively of nitrogen and sulphur
Miscellaneous equipment for routine testing of petroleum products.
We have the only olfactometric laboratory in operation in Sardinia,
with state-of-the-art instruments for measuring odour emissions from all kinds of sources.
The laboratory, in operation since 2011, performs non-conventional monitoring of odour emissions from complex industrial sites, such as oil refineries.
The laboratory meets all the requirements of European technical standards, and its sampling and testing equipment includes GC/Mass/SCD for detection of trace volatile organic compounds and organosulfur compounds.
It conforms to the requirements and procedures of UNI EN 13725:2004 “Air Quality – Determination Of Odour Concentration By Dynamic Olfactometry”.
The lab’s olfactometry chamber
has a Scentroid SS600 dynamic dilution olfactometer. By means of ad hoc software, this instrument mixes the sample air with clean diluting air, then sends it to the six stations of the panellists performing the odour analysis.
The panellists analyse the samples, assessing odour concentration and threshold, pleasantness or unpleasantness (hedonic tone) and the odour’s perceived intensity.
By using a specific mathematical model it is also possible to determine the rate of spread of odour-emitting substances over a given area, to obtain a predictive view of the phenomenon.