Our Methods

Several methods are used for assay testing, depending on the nature of the pharmaceutical product and the properties of the active ingredient:

  • Titration Methods


    Titration techniques, such as acid-base titration or complexometric titration, are commonly used for assay testing of substances with known chemical reactions.

  • Chromatographic Techniques

    High-performance liquid chromatography (HPLC) and gas chromatography (GC) are widely employed for assay testing due to their high sensitivity, selectivity, and accuracy.

  • Spectroscopic Methods

    Spectroscopic techniques, including UV-visible spectroscopy and infrared (IR) spectroscopy, are utilised for quantifying API concentrations based on their characteristic absorption or emission spectra.

  • Gravimetric Methods

    Gravimetric methods involve the measurement of mass changes to determine the concentration of the active ingredient, particularly for solid dosage forms.

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Conducting Assay Testing

The process of assay testing involves several key steps:

1. Sample Preparation: The pharmaceutical sample is prepared according to standardised procedures, ensuring homogeneity and representativeness.

2. Method Validation: The assay method is validated to confirm its accuracy, precision, specificity, and robustness.

3. Instrument Calibration: Analytical instruments are calibrated using certified reference standards to ensure accuracy and reliability of results.

4. Analysis: The prepared sample is analysed using the selected assay method, and the concentration of the active ingredient is determined based on calibration curves or standard addition methods.

At Tentamus Pharma UK, we are committed to providing Assay Testing Services. Our goal is to support the pharmaceutical industry in delivering safe, effective, and high-quality products to the market.

Feel free to contact us by filling out our contact form.

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