SEC-MALLS Services for Biosimilarity Studies

Related topics:

Size exclusion chromatography (SEC) is the most common technique for aggregate determination. Key advantages are easy handling and good reproducibility. We offer services that include method development of SEC/SEC-MALLS methods and the inclusion of multiangle laser light scattering detection (MALLS) to already existing SEC methods. Please follow the link for more information. 

Within biosimiliarity studies, SV-AUC is commonly applied to characterize the API and quantify aggregates and fragments. SV-AUC is a first principle method and delivers information such as relative concentrations, sedimentation coefficients, molecular weights and shape information (frictional ratio) within a single measurement. While its orthogonal technique SEC might show unexpected (and falsely interpreted) results due to interactions of sample and column material, SV-AUC is not prone to change the sample composition. For this reason, regulatory bodies like FDA and EMA show steadily increasing interest in SV-AUC results.  Please follow the link for more information.

Asymmetrical flow field-flow fractionation is an orthogonal method to size exclusion chromatography (SEC) and sedimentation velocity analytical ultracentrifugation (SV-AUC). While the other two techniques are limited to comparably small size ranges, AF4 methods can cover a measurement range from 1 nm up to 1 μm. AF4 can be used with the same mobile phase as SEC but does not depend on a stationary phase. Therefore, it is suitable to back up SEC methods. If you need further information please follow the link

Dynamic light scattering is a crucial part of every biosimilarity study. It is a fast and efficient screening method for aggregate and particle detection. DLS closes the gap between the range of small soluble aggregates that are detected via size exclusion chromatography (SEC), and particles analyzed by methods such as light obscuration (LO) or micro flow imaging (MFI). Owing to the technique’s high sensitivity towards large species, even small impurities can be detected within the measurement range (0.5 nm – 1 µm). If you need further information please follow the link

Light scattering is a well defined effect. The physical properties of light scattering are used for several applications, such as dynamic and static light scattering. Please follow the link to a detailed description of light scattering theory. 

The detection of soluble aggregates is a crucial step for a wide range of bio-pharmaceutical products. It can be seen as one of the most important quality parameter, independent of the type of material you want us to analyze for you.  if you have a gene therapy, a proteinaceous or an oligonucleotide based product. We can offer a   We are offering  a wide range of analytical techniques for the determination of soluble aggregates. We can support you with finding the best technique to determine the amount of soluble aggregates as well as their characterization. We also have a specialized web page on this very topic. Please follow the link for more information. 


General topics:

ZentriForce Pharma was founded as a service provider that specializes in hydrodynamic techniques for biopharmaceutical development. The focus lies on gene therapy products and biosimilarity studies. Follow the link to our company page for further information.

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ZentriForce Pharma implemented a strict quality system to assure the highest tractability of results generated at our facility. We have a wide range of quality related standard operation procedures (SOPS) in place to assure the consistency and quality of our laboratory operations. Please follow the link to a description of our quality system. 

ZentriForce Pharma is your expert in analytical services, with focus on hydrodynamic techniques. Please follow the link to find out about our analytical services. 

ZentriForce Pharma offers a wide range of analytical techniques. Please follow the link to our analytical portfolio. 

ZentriForce Pharma is not merely an expert in analytical development. Our scientist are actively involved in further advances in the theory of hydrodynamic techniques. Follow the link to a detailed description of the theory behind our analytical services, including some of our own research

ZentriForce Pharma is always looking for motivated employees. Check out our career page for further information. 

Size Exclusion Chromatography (SEC – MALLS) for Biosimilarity Studies

Size exclusion chromatography (SEC) is the most commonly used technique for aggregate determination in biopharmaceutical development. Obvious advantages are the easy handling and the good reproducibility that this method provides. We offer services that include method development of SEC / SEC-MALLS methods and the inclusion of multiangle laser light scattering detection (MALLS) to already existing SEC methods. Additionally, we offer service measurements and method qualifications according to ICH guidline Q2.

Why you should use a SEC-MALLS Instrument for Biosimiliarity Studies 

We recommend the use of an HPLC instrument coupled with a multiangle laser light scattering detector (MALLS) for biosimilarity studies. The separation of species in SEC is based on an interaction with a stationary phase that may result in unwanted effects on sample components and elution profiles.  Species are indeed not always separated solely by size. In some cases, a combination of different separation mechanisms may be observed. To avoid misleading results, it is essential to develop a method that is not solely based on the observed elution pattern of the sample, but that also characterizes each observed eluted species individually. This is possible by coupling a multiangle laser light scattering detector (MALLS) with the HPLC instrument. With this information we are able to strengthen your claim of biosimiliarity. Please follow the link to our light scattering theory page to learn more about light scattering theory, including MALLS.

SEC-MALLS Instrumentation

Our scientists have worked with a wide range of biopharmaceutical products. Our experience keeps your expenses low. Combining the Agilent 1260 Infinity II HPLC, Wyatt DAWN Heleos II MALLS detector and a Wyatt Optilab T-rEX RI detector, we  work with cutting-edge instrumentation that offer highest sensitivity,  precision and reproducibility.     

Zentriforce Pharma Quality System

We are aware that all SEC-MALLS measurements are relevant for your regulatory submissions. ZentriForce Pharma has established a laboratory quality system that closely follows the extensive and detailed guidelines provided by the WHO and the principle of “writing what you do and doing what you write”. ZentriForce implements procedural, equipment and analytical SOPs. To date, close to 30 SOPs are in place. These ensure that equipment is correctly operated and meticulously maintained by qualified personnel only, that customer samples are handled by trained laboratory operators with utmost care and precision, and that confidentiality has highest priority in all aspects of our relationship with our customers We encourage audits of our facility and of the results we deliver. Please find a link to a detailed description of our quality system.

Size exclusion chromatography (SEC) is the most common technique for aggregate determination.  The huge advantage is the easy handling, the good reproducible. We offer services ranging from method development of SEC/SEC-MALLS methods, the inclusion of multi angle laser light scattering detection (MALLS) to a already existing SEC methods. For more information please follow the link.

SV-AUC is an important part of a complete biosimilarity study. The regulatory bodies like FDA and EMA a more and more insistent on  seeing SV-AUC data for the submission. ZentriForce Pharma is your partner for the development of a robust and specific SV-AUC method. Please follow the link for more information.

The interest of the regulatory authorities get orthogonal results to verity the SEC results is growing. AF4 and AUC are the most prominent orthogonal methods. Additionally, they are bot first principle methods.  AF4 however is a comparably complex technique. Therefore, it is important to find an experienced partner for the development of robust and specif AF4 methods. Our scientist have already worked with a wide range of commercial antibodies and oligonucleotides. Therefore, ZentriForce Pharma is your partner for the development of a robust and specific AF4 method.   If you need further information please follow the link

Dynamic light scattering is known as a fast and efficient screening method for aggregate / particle detection. Therefore, it is widely used within biosimilarity studies to close the gap between results gained in the range of small soluble aggregates via size exclusion chromatography (SEC) and particle methods such as light obscuration (LO) and micro flow imaging (MFI). Due to the high sensitivity toward large species, even small impurities can be detected within the measurement range (0.5 nm – 1 µm). If you need further information please follow the link

Size exclusion chromatography (SEC) is the most common technique for aggregate determination.  The huge advantage is the easy handling, the good reproducible. We offer services ranging from method development of SEC/SEC-MALLS methods, the inclusion of multi angle laser light scattering detection (MALLS) to a already existing SEC methods. For more information please follow the link.

Accordion Content

The detection of soluble aggregates is a crucial step for a wide range of bio-pharmaceutical products. It can be seen as one of the most important quality parameter, independent of the type of material you want us to analyze for you.  if you have a gene therapy, a proteinaceous or an oligonucleotide based product. We can offer a   We are offering  a wide range of analytical techniques for the determination of soluble aggregates. We can support you with finding the best technique to determine the amount of soluble aggregates as well as their characterization. We also have a specialized web page on this very topic. Please follow the link for more information. 

Interested in Analytical Services ?

We are more than happy to assist you with our SEC-MALLS services.

SEC-MALLS Specifications

Main Outputfractiogram (relative concentrations); molecular weight (Mw)
Size range1 kDa to 5 MDa
Aditional Outputs radius of gyration (rg), 
Sample Volumedepending on the column
Measurement typevial based
Temperature range 10°C to 85°C
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