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Biomass processing: HPLC with ionic liquid for polysaccharides and lignin

Date: Feb 16, 2015

Author: Steve Down

HPLC with an ionic liquid as the mobile phase has been used to reveal the molecular weight distributions of polysaccharides and lignins that were extracted from plant biomass in the same ionic liquid.

Read More thumbnail image: Biomass processing HPLC with ionic liquid for polysaccharides and lignin

Festival frolics: Music fans overload water courses with drugs, LC/MS reveals

Date: Feb 2, 2015

Author: Steve Down

The levels of illegal drugs like ecstasy and ketamine and legal medications like antibiotics and pharmaceuticals rose significantly in local river water during a major youth musical festival in Taiwan.

Read More thumbnail image: Festival frolics Music fans overload water courses with drugs LCMS reveals

Journal Highlight: Comparative study on the phenolic content, antioxidant properties and HPLC fingerprinting of three varieties of Celosia species

Date: Jan 26, 2015

Author: separationsNOW

The phenolic content, characterization and antioxidant properties of aqueous extracts of three varieties of Celosia species were assessed to give insight into their applications in functional foods and nutraceuticals.

Read More thumbnail image: Journal Highlight Comparative study on the phenolic content antioxidant properties and HPLC fingerprinting of three varieties of Celosia species

Tamoxifen metabolism: Micellar liquid chromatography

Date: Jan 19, 2015

Author: Steve Down

The principal metabolites of the breast cancer drug tamoxifen have been measured in plasma by micellar liquid chromatography with fluorescence detection, after conversion to their cyclic derivatives.

Read More thumbnail image: Tamoxifen metabolism Micellar liquid chromatography

Fruity phytohormones: Labelled for HPLC with fluorescence detection

Date: Jan 6, 2015

Author: Steve Down

Eight structurally diverse phytohormones have been measured in five fruits by HPLC with fluorescence detection following derivatisation with a fluorescent labelling reagent.

Read More thumbnail image: Fruity phytohormones Labelled for HPLC with fluorescence detection

Journal Highlight: HPLC-DAD for the determination of three different classes of antifungals: method characterization, statistical approach, and application to a permeation study

Date: Dec 22, 2014

Author: separationsNOW

Methods are described for the HPLC-DAD analysis of formulations containing antifungal compounds of three different classes: terbinafine and butenafine (allylamines), miconazole and fluconazole (azoles), and geraniol, neral and geranial (monoterpenes).

Read More thumbnail image: Journal Highlight HPLC-DAD for the determination of three different classes of antifungals method characterization statistical approach and application to a permeation study

Accurate antibody detection: Size exclusion chromatography at modified UV wavelength

Date: Dec 18, 2014

Author: Steve Down

The antibody content of high-concentration medications can be measured accurately by size exclusion chromatography, adjusting the routine UV wavelength for detection to prevent the need for product dilution.

Read More thumbnail image: Accurate antibody detection Size exclusion chromatography at modified UV wavelength

Amino acids in fertilisers: Enantiomeric distinction by HPLC/MS

Date: Dec 7, 2014

Author: Steve Down

Fifteen pairs of chiral amino acids in hydrolysed protein fertilisers have been measured by LC/MS using a chiral stationary phase to separate the enantiomers.

Read More thumbnail image: Amino acids in fertilisers Enantiomeric distinction by HPLCMS

Nicotine in wastewater: Local consumption assessed by HPLC/MS after metabolite deconjugation

Date: Nov 25, 2014

Author: Steve Down

The extent of tobacco use in a particular region can be estimated from the levels of its metabolites in sewage using LC/MS, say Spanish scientists, who improved method accuracy by including the deconjugated metabolites in their assessments.

Read More thumbnail image: Nicotine in wastewater Local consumption assessed by HPLCMS after metabolite deconjugation

Journal Highlight: Review of the validated HPLC and LC-MS/MS methods for determination of drugs used in clinical practice for Alzheimer's disease

Date: Nov 17, 2014

Author: separationsNOW

This review provides a comprehensive account of various HPLC and LC-MS/MS assays which have been successfully employed to measure the drug levels in various biological matrices arising from preclinical and clinical studies of Alzheimer's disease patients.

Read More thumbnail image: Journal Highlight Review of the validated HPLC and LC-MSMS methods for determination of drugs used in clinical practice for Alzheimers disease
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