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Sample Preparation

Techniques & Tools Mass Spectrometry

Qual and Quant MS: The Perfect Marriage

| Rich Whitworth

Let’s go back to the early 1990s when an important innovation was starting to cause a stir. Electrospray ionization (ESI) essentially allowed liquid chromatography (LC) and mass spectrometry (MS) to be combined much more easily as an analytical technique.

Techniques & Tools Liquid Chromatography

Tea with Wolfgang Lindner

| Wolfgang Lindner

Wolfgang discusses the spirit of science, Salzburg and ISC2014 in the latest episode of Tea with Rich.

Techniques & Tools Sample Preparation

Polishing Your Injection Technique

| Jaap de Zeeuw

There are a lot of things to consider when seeking good results from gas chromatography. Success often comes from understanding precisely what goes on in the injection port.

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…

Techniques & Tools Sample Preparation

The big reveal: Workhorse + Innovation = more information (Part3)

| Sponsored by Malvern Panalytical

In this short series of articles Dr Paul Kippax is looking at 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 Raman spectroscopy to automated imaging…

Techniques & Tools Sample Preparation

GPC/SEC analysis of polylactic acid (PLA) and poly(lactic-co-glycolic acid) (PLGA) using OMNISEC

| Sponsored by Malvern Panalytical

In this application note, a selection of different PLA and PLGA polymer samples were analyzed on Malvern's OMNISEC GPC/SEC system, which combines multiple detectors to provide information about structure and solution properties.

Fields & Applications Sample Preparation

Measuring protein molecular weight using the Viscotek SEC-MALS 20 connected to a Waters Empower® SEC system

In this application note, we show that Malvern’s OmniSEC software can now communicate with Waters Empower® for the seamless exchange of sample sequences. A selection of proteins was used to demonstrate the measurement of protein molecular weight, oligomeric and aggregation state.

Fields & Applications Sample Preparation

PEGylated proteins: Optimizing conjugation reactions using triple detection SEC

In this application note, one protein, interferon α-5, was conjugated with two different PEG molecules in different reactions.  The protein and PEG molecules were characterized individually using multi-detector SEC, followed by the PEGylated conjugates.  Their composition, molecular weights and intrinsic viscosities were measured. This work was performed by Celares GMBH, Germany with samples provided by DIGNA BIOTECH, Spain

Techniques & Tools Technology

Return of the TASIAs

| Rich Whitworth

Accurate measurement drives progress in science in immeasurable ways. Here, we celebrate a year’s worth of advances in The Analytical Scientist Innovation Awards 2014. What impact will these 15 TASIA winners have on your field?

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