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January 13th 2021

CERTIFIED REFERENCE MATERIALS FOR ZETA POTENTIAL MEASURMENTS

Zeta potential is regarded as the most important characteristic to predict the stability of a dispersion of particles, i.e. whether particles stay dispersed or whether they aggregate and/or agglomerate. The Joint Research Centre (JRC) of the European Commission, in collaboration with the National Institute of Standards and Technology (NIST), has produced its first Certified Reference Materials for electrophoretic mobility and zeta potential measurements by electrophoretic light scattering.

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January 7th 2021

OPTIMISED DETECTOR FOR GPC/SEC

Detector stability has particular importance where analysis time is long, such as is often found in high resolution GPC/SEC applications. As a result - HPLC detectors adapted for use in GPC/SEC show a significant baseline drift between the beginning and end of a chromatographic separation limiting their ability to accurately determine the beginning and end of sample peaks and therefore to calculate the correct polydispersity. Operating from room temperature up to 80° C with high thermal stability, our Differential Refractive Index (DRI) detector has been designed with particular attention to eliminating drift.

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