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The bee’s knees: neonicotinoid insecticides in bee pollen quantitated in record times

Date: Jul 15, 2016

Author: Ryan De Vooght-Johnson

Neonicotinoid insecticides used by farmers to protect their crops pose an unintended existential threat to bees, necessitating tools to both study their toxicity and police their restricted use. Researchers from the University of Valladolid, Spain, have devised a quick and easy method for the quantitation of neonicotinoids in bee pollen by UHPLC-qTOF in record time.

Read More thumbnail image: The bees knees neonicotinoid insecticides in bee pollen quantitated in record times

Drug Testing and Analysis Special Issue: Advancing supplement science - challenges and solutions

Date: Jul 6, 2016

Author: spectroscopyNOW

Easy access to and worldwide growth of supplement use, such as for dietary and health improvement, and performance enhancing, presents many questions on their safety and efficacy. Scientists, clinicians, regulators and industry experts provide important contributions in the field.

Read More thumbnail image: Drug Testing and Analysis Special Issue Advancing supplement science - challenges and solutions

UV or not UV: Nilotinib monitoring becomes affordable and accessible

Date: Jul 1, 2016

Author: Ryan De Vooght-Johnson

Levels of therapeutic drugs, much like our caffeine fixes, constantly peak and dip as newly administered drug is both absorbed and broken down. What’s more, the level of circulating leukaemia-fighting tyrosine kinase inhibitors at its lowest—its trough—correlates strongly with its effectiveness, scientists have found. Accordingly, the monitoring of drug levels some time after administration aids clinicians in fine tuning their molecular armamentarium.

Read More thumbnail image: UV or not UV Nilotinib monitoring becomes affordable and accessible

Journal Highlight: Validated HPLC-UV method for determination of naproxen in human plasma with proven selectivity against ibuprofen and paracetamol

Date: Jun 20, 2016

Author: separationsNOW

A simple, rapid and cost-effective HPLC-UV method has been validated for the determination of naproxen in human plasma in the presence of two other analgesics, ibuprofen and paracetamol and applied in a bioequivalence study in humans.

Read More thumbnail image: Journal Highlight Validated HPLC-UV method for determination of naproxen in human plasma with proven selectivity against ibuprofen and paracetamol

What's really in your milk?

Date: Jun 15, 2016

Author: Ryan De Vooght-Johnson

From birth, milk is a major source of nutrition for humans and it is consumed in a range of forms worldwide. However, milk products are prone to tampering – as it is easy and profitable to increase their apparent protein content. To tackle this problem, US researchers developed an LC-MS based method to rapidly analyse milk-based products for chemical adulterants.

Read More thumbnail image: Whats really in your milk

Mining for the metals inside plants

Date: Jun 1, 2016

Author: Ryan De Vooght-Johnson

As well as oxygen and water, plants also need metals to survive. Detecting these metals is a major challenge in the plant sciences, and no technique has so far been able to profile all the metals inside a plant. A study in New Phytologist describes a revolutionary new method that was able to detect a wide range of metals – including iron, copper, zinc and nickel – inside the pea plant.

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Journal Highlight: LogP measurement of a highly hydrophobic properfume: evaluation of extrapolation of RP-HPLC results and impact of chemical moieties on accuracy

Date: May 23, 2016

Author: separationsNOW

The LogP of properfume Haloscent®D was measured by RP-HPLC using an indirect method involving its relationship with the retention factor and careful selection of suitable standards.

Read More thumbnail image: Journal Highlight LogP measurement of a highly hydrophobic properfume evaluation of extrapolation of RP-HPLC results and impact of chemical moieties on accuracy

The antioxidant’s nightmare: Xanthine oxidoreductase

Date: May 15, 2016

Author: Ryan De Vooght-Johnson

Xanthine oxidoreductase is an enzyme with important roles in the body. However, it also produces harmful free radicals that can damage cells. A new method to detect its activity could accelerate research into major diseases including diabetes and heart disease.

Read More thumbnail image: The antioxidants nightmare Xanthine oxidoreductase

Microbial chatter: how bacteria talk to each other

Date: May 1, 2016

Author: Ryan De Vooght-Johnson

By secreting tiny signalling molecules, bacteria coordinate their activity for best effect. A study published in Israel’s Journal of Chemistry describes the signalling molecules secreted by a bacterium found in the depths of the Mediterranean Sea.

Read More thumbnail image: Microbial chatter how bacteria talk to each other

Journal Highlight: High-performance liquid chromatographic resolution of neutral and cationic hetero[6]helicenes

Date: Apr 25, 2016

Author: separationsNOW

The enantiomeric separation of recently synthesised cationic hetero[6]helicenes has been accomplished by HPLC with different types of columns.

Read More thumbnail image: Journal Highlight High-performance liquid chromatographic resolution of neutral and cationic hetero6helicenes
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