The Laboratory provides a range of Analytical Services including engineering testing, environmental testing, geochemical as well as health related testing. These tests are provided for certification, qualityappraisal, quality control, export purposes and research.
Testing is done primarily for developers, construction companies, water entities, recreational facilities, environmental monitoring entities, mining companies, farmers, food processors, supermarkets and research organizations.
Types of Tests Done:
- Soil Contamination - applicable to pollution monitoring, like lead in soils due to battery works, pollution due to industrial effluent, sewage plants, manufacturing plants including bauxite plants, chemical processing plants, agricultural processing and practices, and soil pollution due to natural processes like weathering, wind blown dust, and silt deposition.
- Soil Fertility Assessment - needed prior to the planting of crops or the application of fertilizer.
- Soil Suitability for Construction - to determine if the physical and chemical properties meet requirements for construction.
Rocks Testing- including limestone, shale, granite, and gypsum
- Mineralization - applicable to precious metal and semi-precious prospecting.
- Geochemical Exploration Studies
- Rock Suitability for Construction - to determine if physical and chemical properties meet requirements for construction.
Physical TestingThis includes: Strength, Durability, Density, Size Evaluation and Appearance Tests Applicable to:
- Testing of raw material suitability for construction purposes
- Testing of pulverised material for various uses
- Resource assessment
- Water Contamination - applicable to pollution monitoring, pollution due to industrial effluent, sewage plants, manufacturing plants including bauxite plants, chemical processing plants, agricultural processing and practices, and soil pollution due to natural processes like wind blown dust, and silt deposition.
- Portable Water Assessment - preliminary testing and routine monitoring, applicable to water bottling entities, well operators, water treatment plants, and others suppliers of domestic water
- Recreational Water Testing - To meet international standards routine testing is required and is applicable to beaches, swimming pools, rivers and streams.
Testing of Food
- Nutrient content testing including mineral content testing
- Testing of trace metals and other toxic components Wide range of foods including fruits, vegetables, canned foods, juices and meat
Sampling and Sample Preparation ServicesThis includes:
- Sampling design and field work in mineral exploration, geochemical prospecting and environmental studies
- Sample preparation for testing and bulk size samples example drying, screening, crushing, splitting, pulverizing, homogenizing and heavy mineral separation.
Atomic Absorption Spectroscopy(AAS)
The Laboratory has a state of the art Perkin Elmer AAS system. This system utilizes three different AAS techniques. More than 40 elements, mainly metals may be determined. Specific AAS techniques include:
- Graphite Furnace AAS, GF-AAS: This is a very sensitive technique which enable elements that could not be determined by the traditional flame and other classical techniques, to be analysed giving accurate results for the naturally low levels at which these elements occur. These include: lead, gold, molybdenum, and most of the heavy metals especially when water and organic matrices are being analyzed.
- Flame AAS, F-AAS: This is the traditional AAS technique which give very good sensitivity for most of the common metals.
- Flow Injection AAS, FI-AAS: This is a flameless AAS technique utilizing the formation of volatile hydrides (or the elemental state in the case of mercury), this technique is used to determine elements like Mercury, Se, As, Sn and Te at very low concentration levels.
Ion Chromatography (IC)
A DIONEX™ IC allows rapid mualti-element determination of the following parameters; nitrate, chloride, fluoride, nitrite, bromide, phosphate, and sulphate. This technique is generally applied to water analysis. Arrange of other traditional Analytical techniques are also utilised, these include; Gravimetry, Titrimetry, Spectrophotometry, and Electrometric methods.