Our friendly team brings extensive experience in chromatography analysis, supporting control laboratories, R&D departments and instrument distributors worldwide.
Don't know what separation mode, equipment or column is needed for your next analysis?
Get it right from the start by letting Diduco perform the initial screening. Then you optimize the method and take all the credit.
Busy schedule? New technique for your laboratory? Just lazy?
Diduco can develop methods for you regardless of why. Spend your time and resources where you excel and let us assist with the other steps of the development.
Need a discussion partner to improve that problematic or unstable analysis method?
With experience from many industries, methods, and sample matrixes, Diduco is ready to help improve your analysis method.
Perplexed by the numerous options of conditions?
Let Diduco assist with experimental design and multivariate data analysis to determine the critical factors, map your design space and find the method's robust setpoint.
Want a second laboratory
to verify your method?
Contract Diduco to check that your method meets pharmacopoeia requirements or ICH guidelines for specificity, linearity, recovery, precision, repeatability, robustness, accuracy, detection limit, etc.
Desperate for results but don’t have the equipment or time?
Get your sample results delivered directly to your desk by letting Diduco perform the chemical analysis. Could be organic acids, carbohydrates, inorganic ions, or other small molecules.
Read Diduco’s published case study of analytical quality by design (AQbD):
Validated modernized assay for foscarnet in pharmaceutical formulations using suppressed ion chromatography developed through a quality by design approach.
I’ll be happy to answer any questions you might have regarding our products and services.
Tobias Jonsson
CEO, PhD in chemistry
Diduco focus on analytical techniques that can separate charged and neutral polar compounds in a reliable manner. Our laboratory is equipped with a range of HPLC instruments with different detectors to perform method development and analysis using techniques such as ion chromatography, hydrophilic interaction chromatography and ion exclusion chromatography, plus traditional reversed-phase.
Ion Chromatography with suppressed conductivity detection is a highly sensitive technique for quantification of strong acids and inorganic ions. The approach enables analysis of many different sample types, ranging from water and electrolyte components, to beverages and pharmaceutical formulations.
Hydrophilic Interaction Chromatography can be combined with detector types such as light absorption, evaporative light scattering, charged aerosol and mass spectrometry into a powerful analysis tool for a wide range of different polar charged and neutral molecules in a diversity of samples and situations.
Ion Exclusion Chromatography separates ionizable molecules based on their acidity or basicity by partial exclusion from an internal pore space. Detection techniques can range from compound specific light absorption and conductivity, to rather low-sensitivity eluent bulk features such as refractive index.
Diduco specialises in analysis of charged and neutral polar compounds. This includes different inorganic anions, a range of organic acids, several sorts of carbohydrates and amino acids, plus a diversity of other hydrophilic molecules.

Suppressed IC is typically the go-to technique for analysis of inorganic ions such as fluoride, chloride and sulfate.

IC, ICE and HILIC - all can be used for analysis of organic acids dependig on the sample and the method demands.

IC, ICE and HILIC are all suitable for simple carbohydrates, whereas glycan complexes typically require HILIC.

Amino acids and other zwitterionic compounds can be analyzed by HILIC without any derivatization.
Modern healthcare relies on strict quality control and analytical testing to verify the identity and concentration of active ingredients, impurities, raw materials, counterions and other excipients in pharmaceutical formulations.
Ensuring that water, juices, beer, wine, other beverages, dietary supplements and food ingredients are safe for consumption and contain the stated amounts of nutrients is essential for protecting public health.
Efficient, reliable and sustainable energy production and storage require careful monitoring of contaminants and degradation products in power plants and battery electrolytes, as they can impact the productivity, safety and duration of the systems.
The green transition in sustainable chemical manufacturing relies on developing efficient enzyme-catalysed reactions, making robust reaction monitoring essential. Diduco offers method development expertise and open-access equipment to support this work.
Quantifying substances present in water, soil and air can help track pollution levels, while nutrient monitoring supports more sustainable aquaculture. Diduco provides technology for accurate analysis of ionic substances.
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