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Journal Highlight: Fractional factorial design based microwave-assisted extraction for the determination of organophosphorus and organochlorine residues in tobacco by using GC/MS

Date: Jan 9, 2017

Author: separationsNOW

Orthogonal array testing was used to screen and optimize multiple microwave-assisted extraction parameters for organophosphorus and organochlorine pesticides in tobacco before GC/MS analysis.

Read More thumbnail image: Journal Highlight Fractional factorial design based microwave-assisted extraction for the determination of organophosphorus and organochlorine residues in tobacco by using GCMS

Iranian chemists identify Russian chemical warfare agents

Date: Jan 1, 2017

Author: Ryan De Vooght-Johnson

All chemical weapons were banned by the Chemical Weapons Convention, but concerns about the possible use of these substances still persist. Writing in Rapid Communications in Mass Spectrometry, Iranian researchers disclose GC/MS and LC-MS/MS methods for detecting a number of the obscure ‘Novichok’ chemical warfare agents.

Read More thumbnail image: Iranian chemists identify Russian chemical warfare agents

CPR to resuscitate polluted produce

Date: Dec 13, 2016

Author: Ryan De Vooght-Johnson

More successful prevention of global pesticide abuse proves imminent as Chinese scientists use CPR (Chromatographic Peak Reconstruction) to tackle the problem.

Read More thumbnail image: CPR to resuscitate polluted produce

Journal Highlight: Field-based evaluation of a novel SPME-GC-MS method for investigation of below-ground interaction between Brassica roots and larvae of cabbage root fly, Delia radicum L.

Date: Dec 5, 2016

Author: separationsNOW

A new non-invasive method for passive sampling of root volatiles from plants grown under field conditions uses SPME and GC/MS analysis with PCA to compare volatile profiles.

Read More thumbnail image: Journal Highlight Field-based evaluation of a novel SPME-GC-MS method for investigation of below-ground interaction between Brassica roots and larvae of cabbage root fly Delia radicum L_

Futuristic MS methods found feasible for forensics, pharma and food

Date: Dec 1, 2016

Author: Ryan De Vooght-Johnson

Curiosity killed the cat—allegedly—but also allowed Sapiens to flourish. At the heart of humankind’s endless curiosity lies a labyrinth of data, verging on too complex and too vast for humankind to process. In response, scientists have handed their MS/MS data to silicon, to great success.

Read More thumbnail image: Futuristic MS methods found feasible for forensics pharma and food

Scientists reverse engineer the nuts and bolts of medicinal legumes

Date: Nov 14, 2016

Author: Ryan De Vooght-Johnson

Curiosity killed the cat—allegedly—but also allowed Sapiens to flourish. At the heart of humankind’s endless curiosity lies a labyrinth of data, verging on too complex and too vast for humankind to process. In response, scientists have handed their MS/MS data to silicon, to great success.

Read More thumbnail image: Scientists reverse engineer the nuts and bolts of medicinal legumes

Journal Highlight: Radial basis function neural networks based on projection pursuit approach and solvatochromic descriptors: single and full column prediction of GC retention behavior of PCBs

Date: Nov 7, 2016

Author: separationsNOW

The dimension reduction ability of the projection pursuit approach has been compared to principal components analysis for processing the high-resolution GC relative retention times of PCBs on 18 different stationary phases.

Read More thumbnail image: Journal Highlight Radial basis function neural networks based on projection pursuit approach and solvatochromic descriptors single and full column prediction of GC retention behavior of PCBs

Can the opinion of sensory panels be reduced to chemical analyses?

Date: Nov 1, 2016

Author: Ryan De Vooght-Johnson

Researchers in Germany have developed a using GC-MS and olfactometry combined with linear discriminant analysis method to classify samples of virgin rapeseed oil based on sensory qualities. But can this eliminate the need for professional taste testers?

Read More thumbnail image: Can the opinion of sensory panels be reduced to chemical analyses

Vendor Column: Why should I perform calculations within my chromatography data system?

Date: Oct 22, 2016

Author: Chris Stumpf

In the fifth article in this current series, Waters Corporation's Chris Stumpf addresses using a chromatography data system for calculations over a spreadsheet.

Read More thumbnail image: Vendor Column Why should I perform calculations within my chromatography data system

Deconvolution of complex spectra outsourced to algorithm

Date: Oct 15, 2016

Author: Ryan De Vooght-Johnson

A new algorithm for spectral deconvolution and xenobiotic identification aids forensic toxicology investigations, uncovering more xenobiotics in blood samples than humans alone.

Read More thumbnail image: Deconvolution of complex spectra outsourced to algorithm
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