The Column-09-10-2019

The Column

The Challenges of Climate Change for Wine Production

September 10, 2019

Cover Story

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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.

Employing Mechanistic Model’s Flexibility to Create Robust UHPLC Method Design: Case Study on Industrial Cannabis sativa Sample

September 10, 2019

Features

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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.

Determination of Cannabidiol and Additional Cannabinoid Content in Hemp Tea

September 10, 2019

Features

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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.

Per- and Polyfluorinated Alkylsubstances (PFAS) from Dairy and Fish Using QuEChERS, SPE, and LC–MS/MS

September 10, 2019

Features

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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.

New LC–MS Detection Method for Short Peptides

September 10, 2019

News

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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).

First Analytica Lab Africa Held in South Africa

September 10, 2019

News

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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.

Vol 15 No 9 The Column September 2019 North American PDF

September 06, 2019

Issue PDF

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

Vol 15 No 9 The Column September 2019 Europe & Asia PDF

September 05, 2019

Issue PDF

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