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Data Analysis

Techniques & Tools Data Analysis

Why Not Excel in Data Analysis?

| Mark T. Stauffer

There are a plethora of useful software packages available to analytical scientists for processing experimental data and results. At the top of the list – or pretty darn close to the top – is Microsoft Excel. Why?

Fields & Applications Sample Preparation

Detecting the Presence of Anomalous Large Particles within Powders Using Laser Diffraction Particle Size Analysis

In some industries, for example, in early-stage pharmaceutical development, it is desirable to measure particle size from a small samples of dry powders. However measuring small quantities risks measuring a sample that is not representative of the bulk material. In this application note, we demonstrate the capability of the Aero S dry dispersion unit and the Mastersizer 3000 to measure small quantities of pharmaceutical materials dosed with large particles and to detect those large, anomalous particles.

Techniques & Tools Data Analysis

Ruining Science by Writing it Up

| Thomas Annesley

How to maximize your chances of success when preparing manuscripts for publication.

Fields & Applications Sample Preparation

Characterizing Opthalmic Viscosurgical Devices (OVDs) using a rotational rheometer

This application note discusses the methodology and results for the rheological characterization of Opthalmic Viscosurgical Devices (OVDs) according to the International Standard ISO15798:2013

Techniques & Tools Spectroscopy

Structure-molecular weight relationships of synthetic polymers

| Sponsored by Malvern Panalytical

In this application note, the structural distribution of some common polymers are compared using the Mark-Houwink plot. The data are all generated using the advanced OMNISEC multi-detector GPC/SEC system

Fields & Applications Spectroscopy

An introduction to OMNISEC REVEAL

This technical note describes the system and explains how OMNISEC sets a new standard in molecular characterization.

Fields & Applications Sample Preparation

The Mark–Houwink plot – Differentiation of Branching and Composition

Using OMNISEC, we will show how to separate the effects of a structural difference induced by a compositional change to a polymer (e.g. substitution) and the structural change induced by polymer chain branching.

Techniques & Tools Mass Spectrometry

The Beginner’s Guide to ICP-MS

| Robert Thomas

You’ve convinced your boss that your laboratory absolutely needs a shiny new quadrupole-based, inductively coupled plasma mass spectrometry (ICP-MS) system for trace element analysis. Now what?

Fields & Applications Sample Preparation

The big reveal: Workhorse + Innovation = more information (Part 1)

A concern raised by the rise in routine MRI screening within the healthcare industry is that the ability to detect abnormalities within the body may currently be running ahead of our understanding of their possible consequences, making it difficult to determine a sound course of action. Here then analytical science is arguably advancing beyond current requirements.

Fields & Applications Sample Preparation

The big reveal: Workhorse + Innovation = more information (Part 2)

In this second article of a short series Dr Paul Kippax is looking at the how recent innovations are substantially enhancing the value and informational productivity of some of our established and trusted analytical techniques. This time, the addition of multiple detectors to a GPC/SEC analysis…

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