HPLC / Ezine

Skip to Navigation

Ezine RSS Feed

rss

Filter Ezines

Browse By Ezines

Filter by Supplier

Browse By Supplier

Multiple mass spec methods measure dirty money

Date: Sep 6, 2017

Author: Ryan De Vooght-Johnson

Human exposure to traces of bisphenols, at least some of which are endocrine disrupting chemicals, can occur from plastics and till receipts. Researchers from Villanova University, Pennsylvania, compared the sensitivity of three different ionisation methods, ESI, APCI and APPI, towards detecting various bisphenols, and looked at concentrations in till receipts and paper money.

Read More thumbnail image: Multiple mass spec methods measure dirty money

Journal Highlight: Review of HPLC and LC–MS/MS assays for the determination of various nonsteroidal anti-androgens used in the treatment of prostate cancer

Date: Aug 21, 2017

Author: separationsNOW

The literature on bioanalytical methods for the quantification of first- and second-generation nonsteroidal anti-androgens in clinical and preclinical studies has been critically reviewed and some case studies have been presented.

Read More thumbnail image: Journal Highlight Review of HPLC and LCMSMS assays for the determination of various nonsteroidal anti-androgens used in the treatment of prostate cancer

LC-MS/MS detects dangerously doped drivers

Date: Aug 15, 2017

Author: Ryan De Vooght-Johnson

The detection of the levels of cannabis compounds and their metabolites is an important challenge to both medical practitioners and law enforcement agencies. Scientists from the National Institute of Drug Abuse (NIDA) in Baltimore have developed a new method to assay these compounds using enzymatic hydrolysis followed by LC-MS/MS.

Read More thumbnail image: LC-MSMS detects dangerously doped drivers

Monoclonal measured by means of peptide marker

Date: Aug 1, 2017

Author: Ryan De Vooght-Johnson

Monoclonal antibodies are being increasingly used to treat a wide range of diseases, but quantification of their concentrations in blood remains a challenge. Researchers from Naples have used LC-MS to detect a characteristic peptide fragment from the anticancer monoclonal antibody trastuzumab (Herceptin) in order to determine its serum concentration.

Read More thumbnail image: Monoclonal measured by means of peptide marker

Journal Highlight: Determination of selected antibiotics in farmed fish species using LC-MS/MS

Date: Jul 24, 2017

Author: separationsNOW

37 Antibiotics from different classes have been measured in three different farmed fish species by a novel LC-MS/MS method, revealing potential public health concerns.

Read More thumbnail image: Journal Highlight Determination of selected antibiotics in farmed fish species using LC-MSMS

LC-LTQ-Orbitrap sweetly detects antimicrobial residues in honey

Date: Jul 14, 2017

Author: Ryan De Vooght-Johnson

Various antimicrobial compounds can be used in beekeeping, but careful measurement of any residues of these agents in honey is necessary. Scientists from the Laboratory for the Analysis of Organic Compounds in Beirut and the French Agency for the Safety of Food, Environment and Occupational Health in Fougères (Brittany) described the upgrading of a validated LC-MS/MS method for residue determination to a new LC-Linear Ion Trap/Orbitrap method.

Read More thumbnail image: LC-LTQ-Orbitrap sweetly detects antimicrobial residues in honey

Synthetic Psychoactive Substances Sorted by LC-MS

Date: Jul 1, 2017

Author: Ryan De Vooght-Johnson

Large numbers of new psychoactive substances (NPS) are produced and sold on the internet every year, providing a challenge for law enforcement agencies. Scientists from the Karolinska Institute and the Karolinska University Laboratory (both in Stockholm) have developed a liquid chromatography-high resolution mass spectrometry method (LC-HRMS) to detect a wide range of such substances, together with legal psychoactive pharmaceuticals and naturally occurring alkaloids.

Read More thumbnail image: Synthetic Psychoactive Substances Sorted by LC-MS

Answering Life's Questions with Spectroscopy

Date: Jun 28, 2017

Author: Jon Evans

Spectroscopy has been a common analytical technique in laboratories for many years. Recently, however, it has begun to emerge from the laboratory, both figuratively and literally, as more and more researchers discover that it is ideally placed to answer the questions they want to ask.

Read More thumbnail image: Answering Lifes Questions with Spectroscopy

Journal Highlight: Quantitative method for analysis of tobacco-specific N-nitrosamines in mainstream cigarette smoke by using heart-cutting 2D LC with tandem MS

Date: Jun 19, 2017

Author: separationsNOW

A heart-cutting 2D-LC/MS/MS method developed for the analysis of tobacco-specific N-nitrosamines at low concentrations in Virginia-type cigarette smoke produced almost no matrix interference compared with traditional methodologies.

Read More thumbnail image: Journal Highlight Quantitative method for analysis of tobacco-specific N-nitrosamines in mainstream cigarette smoke by using heart-cutting 2D LC with tandem MS

LC on a nano-scale measures steroids in the whale

Date: Jun 15, 2017

Author: Ryan De Vooght-Johnson

Measurements of the levels of steroid hormones in live whales is crucial to understanding their health and breeding capacity. Researchers from Texas Tech University and the University of Alaska Fairbanks have devised a novel nano-LC-MS/MS method of steroid analysis that requires smaller blubber samples than existing techniques.

Read More thumbnail image: LC on a nano-scale measures steroids in the whale
Page:   Prev 1 2 3 4 5 6 7 Next

Social Links

Share This Links

Bookmark and Share

Microsites

Suppliers Selection
Societies Selection

Banner Ad

Click here to see
all job opportunities

Copyright Information

Interested in spectroscopy? Visit our sister site spectroscopyNOW.com

Copyright © 2017 John Wiley & Sons, Inc. All Rights Reserved