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Special Reports

Rubrics : particle analytics - service provider
TESTA Analytical Solutions is one of the few manufacturer focused on GPC/SEC instrumentation. For Particle Sizing, SLS ad Zeta Potential we partnered with Brookhaven Instruments Corp.



Optimized Refractive Index Detectors
We have invested in stock components to enable us to
offer our high performance DRI detectors, made here in Germany, on short delivery times. Being able to offer a wide range of options (light source, electronics, firmware) means these DRI detector can be readily adapted to fit the requirements of any third party HPLC or GPC/SEC system
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November 2021

Wavelength Optimized Dn / dc Measurement
Introduced new laser options for its HK Series differential refractometer to enable precise determination of specific refractive index increment (dn/dc) at the same wavelength as the light scattering application under investigation - October 2021

Dynamic Light Scattering Helps Determine Best Ceramics for Implants
Researchers have used a BI-200SM in Dynamic Light Scattering mode to determine the aggregate size of powders used in producing sintered bulk calcium silicate ceramics - September 2021

Fast & Accurate HPLC Pump Flow Rate Calibration
To maintain consistent accuracy of results, each and every HPLC pump needs calibration of the flow rate it delivers on a regular base. The traditional method of calibrating HPLC pump flow rate relies upon a gravimetric method in which the total weight of solvent delivered in a given time is determined and transformed into flow rate by taking into account the density of the solvent.- August 2021

Remote Cell Enables UV Measurement of Industrial Processes
A remote cell version of its Rapid Scanning UV Detector kit allowing this elegant OEM technology to be integrated into a wider range of industrial applications. - July 2021

Accurate, Reliable Measurement of Protein Concentration & Total Mass
The HK Series Differential Refractive Index (DRI) detector is being used to provide accurate and reliable measurement of the absolute concentration and total mass of protein in a sample.- June 2021

System Performance Qualification - Removing Uncertainty from Your Results
TESTA Analytical Solutions offers Performance Qualification Services
for all Particle Size and Zeta Potential Instruments from Brookhaven Instruments plus the complete range of its own GPC/SEC systems and detector modules - May 2021

Versatile Multi Detector GPC/SEC System
(GPC/SEC) is widely accepted as the analytical technique of choice to characterize polymers and separate mixtures into fractions including polymer, oligomer, monomer and any non-polymeric additives. GPC/SEC is also the 'go-to' technique for characterizing the molecular weight distribution of polymers - May 2021

Investigating the Properties of Novel Polymer Nanogels
Polymer nanogels with cross-linked structure provide a versatile platform for storage and release of biologically active compounds. They offer a highly desirable method of loading and delivering active forms of drugs or proteins toward cells for remaining activity, enhancing stability, - March 2021

Differential Refractometer for Polymer & Protein Analysis
The new HK Series Differential Refractometer sets a benchmark for precise determination of specific refractive index increment (dn/dc) - an important parameter for polymer and protein molecular weight determination using light scattering techniques. - March 2021

Dual Detector Enables Sensitive Determination of Molecular Weight Distribution
Polymer and plastics manufacturers offer very many different grades of commodity polymers such as poly(vinyl chloride), polyethylenes and polystyrenes. The Molecular Weight Distribution (MWD) of such polymers is a key item of information in tailoring their implementation for different end uses.- January 2021

Highly Stable Detector Improves GPC/SEC Results
The baseline signal stability of any liquid chromatography detector is very important, as it is a limiting factor in peak determination. Detector stability gains even more importance where analysis time is long, such as is commonly encountered in high resolution GPC/SEC applications.- December 2020

Compact, High Resolution Chromatography Flowmeter
Flow rate is one of the most important parameters in any liquid chromatography system, it determines retention time or volume and has by nature a major influence on reproducibility. Compatible with all HPLC and GPC/SEC solvents, the new TESTA flowmeter is conveniently sized and powers itself from a USB connection. - October 2020

Research Grade Light Scattering Instrument for Teaching Labs
Students at undergraduate and postgraduate levels are learning how light scattering enables study of the behaviour of macromolecules in solutions and dispersions.- September 2020

Multiple Laser Light Scattering Goniometer
an upgrade kit for its BI-200SM light scattering goniometer system providing access to multiple laser Static Light Scattering (SLS) and Dynamic Light Scattering (DLS) techniques.- August 2020

Analysis of Virus Particles by Dynamic Light Scattering
The report examines four fish viruses incubated under laboratory culture conditions that have the potential to wreak significant economic damage to both recreational and commercially important fish populations. - July 2020

Characterizing Complex Polymers in Challenging Solvents
A unique GPC/SEC detector designed to have a high performance refractometer as an integral part of a viscometer, allowing both concentration and viscosity to be measured at exactly the same time on the very same sample segment - June 2020

Optimizing DLS Measurements for Protein Drugs and Biotherapeutics
A study that investigates parameters that can be tweaked to improve Dynamic Light Scattering (DLS) measurement quality when analyzing monomeric and aggregated monoclonal antibodies.- May 2020

Particle Characterization Software
The 2020 version of its Particle Solutions Software Suite is now available from Testa Analytical Solutions e.K for users of their NanoBrook series of particle characterization instruments.- March 2020

UV Detector for High Temperature Applications
The new high temperature UV detector is being used as part of a temperature-dependent size exclusion chromatography (TD-SEC) system to provide insights into reaction processes that were not accessible with previous methods.- March 2020

Informative Website for Polymer & Particle Characterization - The new Testa Analytical Solutions e.k. website to be a valuable resource for scientists interested in polymer characterization, and the myriad applications soluble by particle sizing and zeta potential - Februar 2020

Powerful Software Suite for Light Scattering Goniometer - The new software suite supports Multi-Angle DLS, simultaneous DLS and SLS measurement - best of all, Particle Explorer is available as an option for most existing BI-200SM system users with little or no hardware upgrade required -
December 2019

Fast & Flexible Nanoparticle Size Analyzer - Polymers or proteins,  nanodots or new adhesives, latexes or liposomes, cosmetics or colloids, the Testa Analytical NanoBrook 90Plus is a perfect tool to characterize your particles - October 2019

Screening for Protein Aggregation - Protein aggregation is a common challenge in the manufacturing of biological products - November 2019

Fast & Flexible Nanoparticle Size Analyzer - Polymers or proteins,  nanodots or new adhesives, latexes or liposomes, cosmetics or colloids, the Testa Analytical NanoBrook 90Plus is a perfect tool to characterize your particles - October 2019

Optimized Detectors for HPLC and GPC/SEC - The DRI detector will improve the accuracy and reliability of Chromatography systems when determining absolute concentration and total mass balance - September 2019

Automatic Continuous Online Monitoring of Polymerization Reactions - ACOMP is an automated monitoring system - August 2019

Dynamic Light Scattering Measurement in High Concentration Solutions - A comprehensive new applications study that explains why making Dynamic Light Scattering (DLS) measurements in concentrated solutions is difficult.- July 2019

Assessing Nanoparticle Antimicrobial Properties - A study to help assess the antimicrobial properties of silver and copper nanoparticles - Juni 2019

Zeta Potential Measurement on Scarce, Concentrated or Sensitive Samples - Its novel design minimizes waste and preserves expensive or scarce samples - May 2019

Quantitative, High Resolution X-Ray Particle Sizing - Combining centrifugal and gravitational sedimentation in a single instrument the BI-XDC - April 2019

Light Scattering Goniometer Reveals Why Molybdenum Solutions Are Blue - ABI-200SM light scattering goniometer system with autocorrelator solves the enigma of why aqueous molybdenum solutions are blue - March 2019

Nanoparticle Aggregation Detector  - NanoBrook Omni particle size analyser and BI-ZTU autotitrator to detect the onset of aggregation in nanoparticles March 2019

Characterising Liposomes & Liposome-Drug Conjugates - To accurately determine the size and surface charge of liposomes, exosomes and microvesicles - January 2019

Accurate Determination of Structure & Branching in Complex Polymers - Detection of intrinsic viscosity - more accurate - January 2019

Optimised Zeta Potential Measurement in Organic & Aqueous Media - Using proprietary PALS technology,zeta potential measurements up to 1,000 times more sensitive - December 2018

Differential Refractometer for Precise dn/dc Determination - The specific refractive index increment is a critical parameter required to determine absolute molecular weight using static light scattering (SLS) detectors - December 2018

Autotitrator for Zeta Potential Analyzer - How automation of isoelectric point measurement can be achieved - November 2018

Characterization of Polymeric Microgels & Nanogels - Study of the the Institute of Applied Radiation Chemistry at the Lodz University of Technology (Poland) - November 2018

Determining the Electrical Charge on Material Surfaces - To measure electrical charge on surfaces up to 3 orders of magnitude lower than with a conventional system - October 2018

A new version of its powerful Particle Solutions software suite - 5 different particle measurement technologies - DLS, SLS, Phase Analysis Light Scattering (PALS), micro-Rheology and Size Exclusion Chromatography in one package - October 2018

Determining the Electrical Charge on Material Surfaces - To measure electrical charge on surfaces up to 3 orders of magnitude lower than with a conventional system - October 2018

Goniometer for Dynamic & Static Light Scattering Measurements - The BI-200SM is ideal for macro-molecular studies and submicron particle sizing

 Online Differential Viscometer - to determine the size and conformation of all types of synthetic polymers, biopolymers, proteins and peptides-   September 2018

The Nanobrook ZetaPALS is designed for measuring electrophoretic mobilities - The platform for zeta   potential determination of nanoparticles and  colloids in water - Juli 2018

 Versatile Analyser for Polymer & Protein Characterisation - The BI-MwA Molecular Weight Analyser -   July 2018

 Reference Standards for Organic and Aqueous GPC/SEC Applications - July 2018

 All-in-One Solution for Particle and Protein Characterization   - outstanding reproducibility
 from sample-to-sample, operator-to-operator, and instrument-to-instrument -


The NanoBrook Omni from Testa Analytical Solutions combines leading edge particle sizing and zeta potential technology in one powerful and accurate instrument for particle and protein characterisation -

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