Sample Preparation

Continued development of needle-trap extraction (NTE) has expanded its versatility in applications such as disease diagnosis, aerosol-bound analytes, and breath analysis.

These questions tend to focus on dealing with octanol-water partition coefficients, as well as more practical applications of sample preparation.

Webinar Date/Time: Monday, March 20th, 2023 at 11am EDT|8am PDT|3pm GMT|4pm CET

Webinar Date/Time: Thu, Jan 19, 2023 11:00 AM EST

Webinar Date/Time: Mon, Dec 12, 2022 11:00 AM EST

At the heart of most chromatographic analyses are the gravimetric and volumetric operations used to prepare samples, standards, and HPLC mobile phases.

Webinar Date/Time: Friday, December 9th, 2022 at 11am EST|8am PST|4pm GMT|5pm CET

Test your knowledge of octanol-water partition coefficients and practical applications of sample preparation.

Integrating electric fields into extraction techniques increases sensitivity and selectivity. These approaches are compatible with miniaturized, portable, and many biological samples.

A snapshot of key trends and developments in sample preparation according to selected panellists from the chromatography sector.

The differences between DIMS and GC approaches are presented.

As I write this, I’m also grading the final exam from my Chromatography and Separations course. Here’s your opportunity to test yourself; answers are provided.

Can you pass this test of chromatographic sample preparation concepts?

This method greatly facilitates the analysis of a large number of pesticides.

This month we interview Natalia Manousi, from the Laboratory of Analytical Chemistry at the Department of Chemistry of the Aristotle University of Thessaloniki in Thessaloniki, Greece, about her work in the development and application of novel sample preparation techniques.

The recruitment of young, talented entrepreneurs within academia and industry is needed to tackle many of the challenges that exist today and that will emerge tomorrow.

Given that sample preparation consumes over two thirds of analysis time, sample preparation becomes the bottleneck issue in analytical chemistry, resulting in the urgent necessity of developing accelerated sample preparation techniques.

Extraction-based sample preparation has been recognized as a significant step in separation science. To facilitate the extraction with better resolution, higher sensitivity, and lower detection limit, some new assistant approaches have been introduced, including electric field.

New sample preparation workflows for intact proteins in biological matrices are needed. We hope that others will join in this important field of research.

We assess the landscape of new sample preparation instrumentation, supplies, and accessories introduced over the past 12 months.

This GC–FID method enables accurate determination of cooling agents, which are flavor compounds commonly used in cigarette tipping paper.

The QuPPe method expands on QuEChERS to tackle highly polar compounds.

QuEChERS has been updated to suit modern instrumentation. Now also “efficient and robust,” QuEChERSER is a “mega-method” that covers a wider polarity range.

We examine the rapid growth of green microextraction techniques, such as molecular imprinted polymer solid-phase extraction (MISPE), in the field of food quality and safety, and how this technique is used for bisphenol A (BPA) analysis.

New approaches to sample preparation are being developed for microbial metabolomics to address the inherent complexity of this type of analysis.