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Service Title

Service Description

Pharmaceutical Testing

Research and development, analysis and testing, quality control and more.

Pharmaceutical Analyses

Research, development and validation of methods, quality control, stability studies and more.

The Pharmaceutical analysis department provides analytical services for the pharmaceutical industry, especially in the quality control area. The activities are conducted under Good Manufacturing Practice (GMP) and according to valid ICH guidelines.

Validation and transfer of methods

The implementation of a new analytical method is the most important step in the operation of an analytical
laboratory and is therefore under close supervision of the project coordinator and the management of the laboratory. Transferring a method from the company to another laboratory is closely inspected and, if necessary, supervised on site by our experienced analyst. Transfers and validations of the methods are conducted in accordance with GMP rules and approved protocols.

All the experiments required for these operations are conducted by our experienced analysts and supervised by the project coordinator. This guarantees that the analytical method works accurately and correctly in all the workplaces.

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Stability studies

Since its foundation, Quinta-Analytica has been providing a complete service of stability studies with active substances and dosage forms. Also these studies are conducted within the GMP framework and according to the ICH guidelines. Every year, around 100 new stability studies are conducted in our company. 

We offer the following services:

  • Stability Protocols
  • Complete analytical testing
  • Large capacity for measuring stability samples
  • Stability regimes:
    • 2-8 ° C
    • 25 ° C / 60% RH, 2 rooms, area 40m 2
    • 30 ° C / 65% RH, 1 room, area 16m 2
    • 30 ° C / 75% RH, 1 room, area 16m 2
    • 40 ° C / 75% RH, 2 rooms, area 32m 2
    • photostability chambers
    • transport studies
    • types of studies not included in ICH conditions can be carried out in Binder chambers
  • Continuous and summary reporting of stability results.

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Analyses of highly potent substances

Analyses of highly potent substances are carried out in our Highly Potent Substance Laboratory for. The laboratory consists of several laboratories, a hygienic zone and is completely autonomous in regard to personnel and equipment. It can be used independently on other projects and with special regard to safety. Analyses of highly potent substances comprise a large part of the capacity of the Department of
pharmaceutical analyses and we have been successfully operating it for several years.

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Analytical support for validating the production process

Validations of the production process of a dosage form are one of the most important parts of the production process under Good Manufacturing Practice (GMP). The production process must also be validated within this practice. This process produces a large number of samples that must be analysed by approved and validated methods. The capacity of analytical laboratories of a given pharmaceutical producers may sometimes be limited and Quinta can then help and analyse such samples.

Our laboratory can also be used to carry out analyses of samples from cleaning processes during the production (air filters, rinsing liquors, etc.). Highly advanced equipment such as HPLC and LC/MS are used for these operations.

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Quality control, release analyses

Quality control within GMP is an integral part of pharmaceutical production. Although Quinta‑Analytica does not have a pharmaceutical production line, it holds the GMP certificate and a production license.

This allows our company to perform quality control as well as analytical testing of batches for release – release testing. This means testing of products designed for the EU market that must be so-called "released" to EU countries.

Quinta-Analytica has been a well-known and established company performing testing of release batches that were produced outside of the EU - "import testing". We conduct such testing even for the world's largest pharmaceutical manufacturers.

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Accelerated stability and degradation studies

Part of validations of most HPLC methods for the determination of the content of impurities the so-called degradation study (FDS - Forced Degradation Study). FDS is an instrument for evaluation of analytical methods that aspire for the term "stability-inducing". The principle of FDS is the exposure of the active ingredient, resp. of the medicinal product (and associated placebo) to a series of physical and chemical stresses that can, in a short-term, generate new unknown impurities that may possibly occur in the final product during storage. The physical and chemical stresses include especially:

  • Exposure to heat
  • Exposure to light (UV/VIS)
  • Acidic, alkaline and oxidizing stresses
  • Exposure to elevated temperatures and humidity of the environment

It is beneficial, for chemical stresses in particular, to choose the optimum conditions based on a good
knowledge of the chemical behavior of the studied active ingredient. Eventual interactions of the active ingredient with the excipients are studied separately within the so-called compatibility studies. Experience has shown that this type of work is best handled by the R&D sections, which conduct accelerated stability, degradation and compatibility studies as a routine part of the development of new analytical methods, but also as a support of the formulation development of the given medicinal product. 

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In-vitro studies

In-vitro studies are sometimes better than conventional Human PK In-vivo studies in assessing Bioequivalence of the drugs. Quinta offers various types of Dissolution Apparatuses (including Apparatus 4) for not only classic in-vitro study but also in-vitro-in-vivo correlation studies.

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Biopharmaceutical analyses

The current development on the pharmaceutical market clearly indicates an ever increasing proportion of the production and sales of APIs based on high molecular weight compounds such as proteins and peptides. In response to this trend, our Department of biopharmaceutical analyses offers services that include protein and peptide characterization, validation of bioanalytical methods in the GxP environment, method transfers, QC and release testing in accordance with the recommendations of ICH-Q6B. In addition, it provides analytical support for pre-clinical and clinical studies with high molecular weight drugs in the form of determination of these substances in biological matrices including statistical evaluation of PC parameters and evaluation of bioequivalence.

Characterization and protein purity
Based on the ICH-Q6B regulations, it is recommended to characterize proteins and peptides by their appearance, molecular weight, isoelectric point, pH in a solution, content of amino acids, primary structure and position of disulfide bridges. Purity analysis is a very important part of a complex characterization of active ingredients on protein or peptide bases. The above-limit presence of protein aggregates, residual nucleic acids or bacterial endotoxins can cause undesired and potentially life-threatening immune reaction in the human body.

Immunochemical properties
The evaluation of immunochemical properties of a given protein medicinal product becomes a necessity, especially if this medicinal product belongs to the category of antibodies. In such cases, characterization of drug affinity to specific antigens or their well-defined portions is required. Another integral part of characterization is testing of the immune response and the rate of ADA production (anti-drug antibodies).

Amino acids can be relatively easily modified chemically and proteins therefore often contain a number of post-translational modifications (PTMs). These modifications cannot be usually predicted from the gene encoding sequence, but because they have a significant influence on the overall protein functionality, their description is an essential part of a complex characterization of biological drugs.

Proteomic services
We offer identification of proteins and peptides in mixtures (e.g. plant and animal extracts, multi-component biopharmaceutical preparations) using 2D LC-MS/MS.

Quantification in biological material
In addition to the basic characterization of peptide and protein drugs, we also perform determination of these substances in biological material using the LC-MS and ELISA methods under good laboratory and clinical practices.
Our laboratory is equipped with UPLC, LC-FTMS, ELISA systems (UV-VIS, fluorescence, luminescence), capillary electrophoresis, gel electrophoresis, isoelectric focusing and automatic amino acid analysis.

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Research and Development department

Like any successful company, we need to be efficient, flexible and modern. That is exactly what our Research and Development department has been doing. We are a compact and innovative team of
experts. In Quinta, we use state-of-the-art equipment; we follow the latest trends in analytical chemistry and also remember good old chemical processes.

Development of analytical methods
The development and testing of new analytical methods comprise the centre of our business. The most common reasons to develop analytical methods we encounter are the following:

  • When developing a new (patent-protected) synthetic pathway to an active substance, it is necessary to monitor the reaction conversions and the impurity profiles of the intermediates and final products.
  • The analytical method for the determination of purity or assay of the final active ingredient described in the relevant pharmacopoeia is obsolete or does not meet the requirements of the customer.
  • There is no suitable method for the determination of purity or assay of the active ingredient in a new medicinal product.
  • The final medicinal product is a unique combination of several active ingredients.
  • There is no available method for the determination of the content of a related substance or a known impurity.

In most cases, HPLC or UPLC equipment can be used. Our laboratory is equipped with liquid chromatographs Alliance 2690/5 (Waters), Agilent 1100 and 1260 Infinity II (Agilent Technologies) and UHPLC systems Acquity UPLC (Waters) and 1290 Infinity (Agilent Technologies), mainly with DAD-UV detection. We can also use the ELSD 1290 Infinity II detector (Agilent Technologies) and a 474 (Waters) fluorescence detector.

If the HPLC/UV method is insufficiently selective or sensitive (e.g. in trace analysis), we use our LC/MS system equipped with a modern mass spectrometer with a linear ion trap LTQ (Thermo-Finnigan).

In some cases, it is still more advantageous to employ the TLC method, especially when the observed substances are difficult to detect using UV. For this purpose, we are equipped with a TLC system from the company Camag, including the Linomat 4 application device, a development chamber and a detection chamber with the Reprostar 3 digital video camera.

When developing methods for the determination of volatile analytes, we use GC/FID or GC/MS equipment, both in combination with either classic liquid (optionally PTV) or static/dynamic headspace injection. For these purpose, we use a gas chromatograph 7890A/5975C (Agilent Technologies) equipped with a CombiPAL autosampler (CTC Analytics), resp. 7697A (Agilent Technologies).

For the purpose of analysing highly polar organic substances or inorganic ions, we are equipped with a multi-purpose ion chromatograph with the option of conductive or amperometric detection ICS3000 by Dionex.

We conduct development of dissolution methods - most often using paddle dissolution systems (known as USP apparatus II) or baskets (USP apparatus I). This development is conducted as an analytical support for of the formulation development, but also for the subsequent testing in the commercial phase. For these purposes, we can use the VK7025 (VanKel) and 708DS (Agilent Technologies) systems equipped with automatic sample collection VK8000. We have recently expanded our portfolio with a dissolution system with flow-through cells (USP apparatus IV) from Sotax.

Additionally, we develop methods for the determination of elementary impurities according to ICH guideline Q3D using the ICP-MS system 7800 (Agilent) including mineralization procedures, where we use Microwave digestion system speedwave Xpert (Berghof).

In addition to these main activities, we also provide development of methods for particle size determination using microscopy with image analysis and laser diffraction (MasterSizer 3000, Malvern Instruments), titration methods with mainly potentiometric detection (Titrino-Metrohm) and dissolution methods (Varian, Hanson) with UV or HPLC end for characterization of dosage forms.

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Determination of impurities and their isolation

Identification and determination of structures of impurities is a fairly common task which we have to deal with. All unknown impurities with higher content than is permitted by applicable legislature (typically 0.1%) are potential complications for customer as they can cause an undesirable interest during the registration process.

Knowledge of the structure of an unknown impurity is then often crucial in distinguishing impurities originating in the manufacturing process from impurities resulting from the subsequent degradation of the final product. The first above mentioned impurities can be controlled, for example, by adjusting the production process. Knowing the structure of an impurity of the degradation origin can, in turn, enable us to prepare its standard on the basis of toxicological data or increase the limit for its content. When determining the structure of a substance in practice, we use mass spectrometry together with either gas chromatography (GC-MS) or liquid chromatography (LC-MS). When determining the structure of volatile substances, we have had excellent results with the GC-MS system together with a single quadrupole, which, when used with EI ionization, provides sufficient information leading to the target structure. During interpretation of spectra, the digital Mass Spectral Library (NIST) can also be used successfully.

Many years of experience have demonstrated that the identification of most non-volatile organic impurities is best achieved with the LC-MS system with ESI or APCI ionization and ion trapping. The LC/MS system LTQ (Thermo-Finnigan), which we use for this purpose, is equipped with a linear ion trap that combines the advantages of a classical ion trap with the capabilities of MSn and quadrupole sensitivity. The advantage is above all the high sensitivity, data collection speed and, thanks to the orthogonal construction of the ion source, also resistance to contamination by, for example, the components of the matrix or partially by non-volatile components in the mobile phase.

If the selected LC/MS alone is not enough, we are prepared to isolate the desired impurities using the preparative liquid chromatography and provide, for example, the measurement of the required NMR spectra, which we are then able to interpret ourselves. In connection to the identification of impurities by, for example, LC/MS, we are able to isolate the given substance in larger amounts at the customer's request. The degree of success depends on the degree of separation of the given component from the rest of the mixture, but above all on its content in the raw material. If the content is too low, we look for ways to enrich it either by suitable stress conditions or pre-separation.

Isolation can be useful when it is either difficult to directly prepare the substance or other techniques than LC/MS (for example NMR) are necessary for its identification.

For these purposes, we use either classical column chromatography or high performance separation on an automated semi-preparative modular HPLC system Waters. Using these techniques, we are able to isolate, depending on the concentration in the raw mixture and the quality of separation, the individual components in the amount of tens to hundreds of milligrams.

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Analyses of inhalation products

Quinta-Analytica provides testing of inhalation products administered by inhalers for dry powders. Our special laboratory with controlled rooms (temperature and humidity) performs analyses of such products in accordance with Pharmacopoea Bohemica and Ph. Eur. monograph Preparations for inhalation 2.9.18 and 0671, Inhalanda.

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Synthesis and certification of reference materials

Following the previous paragraph relating to the determination of structures of impurities, there is very frequently a need to acquire the given substance as an analytical standard in sufficient quantity so that this impurity can be routinely determined in the product using appropriate methods. Our advantage is that already during the process of identification of the structure, we often develop procedures that can be used to intentionally produce the given substance by synthesis using allowing suitable reagents to interact with for example the active ingredient, or at least to enrich it. Due to this, we can often acquire the desired substance faster than by conventional synthetic procedures, which we, however, also use in appropriate situations partly in cooperation with external synthetic laboratories. Additional advantage is the fact that the risk of a mismatch between the originally designed structure of the impurity and its actual structure is our responsibility and this may consequently represent a significant savings of time and money for the customer. We will, of course, design and perform the certification of the given analytical standard including the full characterization of the structure, determination of potency and issuance of the analytical certificate.

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API Sourcing

We offer

Other Services

and consultions

  • GMP Packaging / Labelling for stability studies and clinical testing
  • Module 3 audit
  • IMPD Compilation
  • Monitoring of studies

If you don't see what you need or have a question, get in touch with us!

  • Pharmacovigilance
  • Regulatory affairs
  • Registrations of generics in Russia
  • And more!

Don't see what you need, or have a question?
Our commercial team is happy to help!

Jiří Raška

Chief Commercial Officer

David Dvořák

Business Manager
& Scientific Advisor

Pavel Pihera

Business Manager
& API Sourcing Manager
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Marketing Menager

Conpress is a great platform to anyone like who want to start buisiness but not get right decision. It’s really great place for new to start the buisness in righ way!

John Doe
Marketing Menager

Conpress is a great platform to anyone like who want to start buisiness but not get right decision. It’s really great place for new to start the buisness in righ way!

John Doe
Marketing Menager

Conpress is a great platform to anyone like who want to start buisiness but not get right decision. It’s really great place for new to start the buisness in righ way!

John Doe
Marketing Menager

Conpress is a great platform to anyone like who want to start buisiness but not get right decision. It’s really great place for new to start the buisness in righ way!

John Doe
Marketing Menager