[23 Nov 2017 | ]
Lessons learned from NTA interlaboratory comparison

Results of a multi-round interlaboratory comparison (ILC) of NanoSight instruments were recently published1, setting a benchmark for repeatability and reproducibility for the Nanoparticle Tracking Analysis (NTA) technique. The limits of measurement were shown to extend beyond the 30 nm –600 nm range (with all NanoSight models), with percentage coefficients of variation (% CV), calculated as sub 5% for monodisperse samples. The process further highlighted how much variability or error might be introduced if inappropriate instrument settings or analytical procedures are used.
As a relatively new technique, there remained questions about the …

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Nanoparticle Tracking Analysis, Nanosight, Particle concentration, Tech Talk »

[23 Nov 2017 | ]
Lessons learned from NTA interlaboratory comparison

Results of a multi-round interlaboratory comparison (ILC) of NanoSight instruments were recently published1, setting a benchmark for repeatability and reproducibility for the Nanoparticle Tracking Analysis (NTA) technique. The limits of measurement were shown to extend beyond the 30 nm –600 nm range (with all NanoSight models), with percentage coefficients of variation (% CV), calculated as sub 5% for monodisperse samples. The process further highlighted how much variability or error might be introduced if inappropriate instrument settings or analytical procedures are used.
As a relatively new technique, there remained questions about the …

Read the full story »

Epsilon, Meet the Experts, X-Ray Fluorescence (XRF) »

[21 Nov 2017 | ]
Optimise time in the field with your mobile lab – learn how!

Whether it is for mineral exploration or mining waste analysis, there is a time lapse between bringing samples back to the laboratory, analysis and making decisions in the field.
Increasingly, governments are focusing on protecting the environment. Companies can be charged with hefty environmental fines. Minimise your company’s risk through quick analysis of undesirable environmental waste elements.
Imagine if you could have the flexibility to react quickly by analyzing samples while traveling between mine sites. Here’s a tip on how to set up a mobile lab in your car with the Epsilon …

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Differential Scanning Calorimetry, Dynamic Light Scattering, MicroCal, Molecular size, Molecular structure, Particle size, Protein Aggregation, Tech Talk, Zetasizer »

[16 Nov 2017 | ]
Aggregation Temperature (Tagg) – what is it, and how can we calculate it?

Measuring aggregation temperature using the Zetasizer

In dynamic light scattering (DLS), the hydrodynamic size and size distribution of particles in solution can be obtained.  It may be of interest to examine this measurement as a function of time and temperature, or as a ‘trend’, as it is called in the Malvern Zetasizer software.  For biological protein samples, this temperature trend is particularly interesting: although at low temperatures a protein may be stable and show repeatable size (and scattering intensity) measurements, typically at some elevated temperature (Tagg), protein molecules will show a tendency …

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ASD, Ground truthing, Near-InfraRed spectroscopy (NIR), Remote sensing, Tech Talk »

[14 Nov 2017 | ]
Webinar – Quantitative Spectroscopy from Space

This November, the ASD webinar focuses on hyperspectral imaging, near infrared spectroscopy (NIRS), and multivariate calibration models (i.e. chemometrics), featuring ASD’s FieldSpec® 4 Hi-Res NG Spectroradiometer.

In this webinar, you will learn:

How the combination of hyperspectral imaging, near-infrared spectroscopy (NIRS), and multivariate calibration algorithms (i.e. chemometrics), enables quantitative mapping of properties of the Earth’s surface
The data that ground-based reflectance measurements of materials can provide for remote sensing applications
How to apply quantitative chemometric calibrations to hyperspectral image data
Examples of successful applications

November’s ASD webinar speaker is Dr. Brian Curtiss; Brian is one of …

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