The Column-09-10-2019

Heatwaves are significantly affecting the consistency and quality of wine production. The Column spoke to Julia C. Gouot from the National Wine and Grape Industry Centre in Australia about the importance of chromatography to understand the effects of temperature change on grape physiology and composition.

The 9th International Symposium on Recent Advances in Food Analysis (RAFA 2019) will take place in Prague, Czech Republic, on 5–8 November 2019. This preview offers a glimpse of what to expect at the conference.

With the era of new complex drug products there is an increasing demand on multivariate modelling tools to integrate robust analytical method design, facilitate efficient and science-based change management, and improve communication between regulators and industry. Mechanistic models provide several advantages in terms of modelling efficiency, versatility, and high predictive power. The following case study will demonstrate a robust method design for industrial Cannabis sativa.

This article discusses the detection of N-nitroso compounds (NOC) in a range of different food and beverages.

Quantification of cannabinoids is essential for the accurate labelling of hemp products, both for quality control and for establishing legality with regards to d9-tetrahydrocannabinol (THC) content. For this article, the cannabinoid content of several cannabidiol (CBD)-rich hemp tea samples was determined and was found to often deviate from the content stated on the packaging. Just like the cannabis flower, hemp tea can be analyzed easily and effectively for its cannabinoid content using high performance liquid chromatography (HPLC). The HPLC–UV assay of choice provided good linearity, low limits of detection (LODs), and high precision of retention time and peak area for the 11 cannabinoids under investigation.

The analysis of per- and polyfluorinated alkyl substances (PFAS) in food samples, along with an optional additional solid-phase extraction (SPE) clean-up for even more sensitive liquid chromatography tandem mass spectrometry (LC–MS/MS), is demonstrated in this article.

The Chromatographic Society (ChromSoc) will be hosting the 4th “Grass Roots” educational event at the Longmynd Hotel in the beautiful market town of Church Stretton from the 4–7 October 2019.

Researchers from the University of Rome have developed a strategy for the identification of underivatized short peptides in urine using graphitized carbon black (GCB) solid-phase extraction (SPE) and liquid chromatography–mass spectrometry (LC–MS).

The first Analytica Lab Africa took place this July at the Gallagher Convention Center in Johannesburg with 148 exhibitors from 15 countries presenting their products and solutions for the African market.

Click the title above to open The Column September 2019 North American issue, Volume 15, Number 9, in an interactive PDF format.

Click the title above to open The Column September 2019 Europe & Asia issue, Volume 15, Number 9, in an interactive PDF format.