Please note that the short descriptions shown below are examples of tests available and are by no means an exhaustive list. If you do not see your required analysis below or in the downloadable test list then please contact us directly to discuss your requirements.
The physical state & colour of the sample is noted against a supplied specification. This test can be combined with the ‘standard sample storage’ option for complete Quality Control on repeat testing. Performed in diffused daylight, vertically, against a white background.
The odour of a sample is noted against a supplied specification. This test can be combined with the ‘standard sample storage’ option for complete Quality Control on repeat testing.
Gardner Colour Wheel
The degree of colouration of a sample shall be evaluated as acceptable or not acceptable using a Lovibond comparator and scales in the form of colour wheel discs. The method is based on method 2.2.2 from the European Pharmacopoeia
Spreadability/ Consistency/ Texture
Wet Chemistry / General Techniques
Based on guidelines set out by the Ph Eur, the sample can be tested against any specification for any of the following criteria; ‘Very Soluble’, ‘Freely Soluble’, ‘Soluble’, ‘Sparingly Soluble’, ‘Slightly Soluble’, ‘Very Slightly Soluble’ , ‘Practically Insoluble’, and ‘Insoluble’. Tests can be performed using most common solvents. Please enquire for costing of less common solvents.
Determination of the viscosity of liquid materials. We have the capability of analysing a range of liquids from oils and suspensions through to creams and gels. Please specify if LV or RV Viscometer required for your test.
Determination of the temperature at which solid or powder based materials transform into a liquid.
Determination of the temperature at which a liquid transforms into a solid based material.
The pH of a solution is determined potentiometrically using our calibrated pH meter.
Weight per ml/ Specific Gravity
Pycnometer – for creams and gels at a pre-determined temperature
Density bottle – for majority of oil based products
Oscillating density meter – for thin aqueous samples
All performed to predetermined temperatures.
Karl Fisher – Water Content by Titration
Determination of the water content of raw materials and finished products.
Based on the Ph Eur method 2.4.14 (method 1), your sample is treated with sulphuric acid and charred prior to being incinerated at 600°C, and the residue percentage calculated.
Loss on Drying/Moisture by Drying
Based on the Ph Eur method 2.2.32, the sample is dried at a pre-determined temperature for a specific time/ to constant weight, and the LOD% Calculated.
Predominantly used to identify specific oils or sugars within liquids based on the refractive index produced.
Measure of the ability of water to pass an electrical current. Conductivity in water is affected by the presence of inorganic dissolved solids such as chloride, nitrate, sulphate, and phosphate anions (ions that carry a negative charge) or sodium, magnesium, calcium, iron, and aluminium cations (ions that carry a positive charge).
Used to identify the level of disintegration of tablets or capsules in liquid media, over a specified period of time.
Quantitative analysis of compaction of powders, using a calibrated volumeter. Bulk Density is calculated by the weight divided by the total volume occupied by the material.
Qualitative analysis for the presence or absence of a particular compound within a raw material or finished product based on reference standards: European Pharmacopoeia, British Pharmacopoeia, USP and AOAC.
For example: Bromide, Phosphate, Magnesium, Potassium, Iodide and Sodium.We also perform FTIR identification which allows comparison between standards and samples scans. This method is not suitable for salt based or high water content materials.
TLC is a simple procedure that gives a quick answer to how many components are in a mixture. TLC is also used to support the identity of a compound in a mixture when the Rf of a compound is compared with the Rf of a known compound.
For example: Arachis Oil and Vitamin E ID
Botanical, Nutritional & Vitamin Analysis
Assay performed by photometric titration of Sodium Chondroitin Sulphate with Cetylpyridinium Chloride to obtain the Chondroitin content of a sample. This applies to both raw material or finished products.
Determination of D-Glucosamine in both raw material or finished products, in powdered, liquid, tablet and capsule form using AOAC Method. An alternative Ph Eur method is also available for raw materials.
Quantitative analysis of N-Acetyl-D-Glucosamine by extracting the NADG from the raw material or finished products with water and subjected to hydrophilic interaction chromatography (HILIC) with UV detection.
Quantitative analysis of S-Adenosyl methionine by liquid chromatography for both Raw Material and Finished Products.
CMI/MI Preservative Testing
Quantitative analysis of N-Methylisothiazolinone (MI) and Chloro- Methylisothiazolinone (CMI) content of S&M Isothiazolinone within Shampoos by liquid chromatography.
Quantitative analysis of Silybinin for both raw material and finished products using reverse phase liquid chromatography.
Quantitative analysis of the Kavalactones; Methysticin, Dihydromethysticin, Kavain, Dihydrokavain, Desmethoxyyangonnin, Yangonin and Isomerised Compounds in Kava-Kava containing products by HPLC.
Sodium Benzoate Preservative Testing
Quantitative analysis of the Sodium Benzoate in Shampoo products by HPLC.
Determination of active content of a material or to assess values of certain compounds such as Iodine value, Peroxide value or Acid value.
For example: Acidity and Saponification value.
Assay titrations are also available.
Monograph methods to determine the impurity levels of degradation products are within an acceptable range compared against a standard.
For example: Chloride, Heavy Metals, Lead and Potassium Limits
Quantitative or Qualitative analysis of degradation products within a sample compared against. Standard techniques used for this can range from TLC or HPLC.
For example: Glycolic Acid realted substances.
Please see the document below for a current list of routine tests we offer.