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A blog on the latest applications, articles, & research on chromatography solutions in sample preparation, Ion Chromatography (IC),
High Pressure Liquid Chromatography (HPLC), Ion Chromatography-Mass Spectrometry (IC-MS), Gas Chromatography (GC),
Gas Chromatography-Mass Spectrometry (GC-MS and GC-MS/MS), and software (Chromeleon CDS, LIMS, and ProteinCenter).

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GC-MS/MS Improves Detection of Low-Level Dioxins in Food & Feed

  
  
  
  
  
  
analysis of low levels of dioxins in food

Did you know that more than 90% of human exposure to highly toxic dioxins is through food, mainly meat and dairy products, fish and shellfish? (Link & source WHO page on dioxins.) A little about dioxins in case you are not familiar with these chemicals. Dioxins are a group of chemically-related compounds, including polychlorinated dibenzodioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), and some dioxin-like polychlorinated biphenyls (PCBs) which are formed by waste incineation, forest fires, and backyard trash burning. These compounds are classified as persistent organic pollutants (POPs) as they are highly toxic and bioaccumulate in food chains, mainly in the fatty tissues of animals. Exposure to dioxins is known to cause developmental problems, damage to the immune system, dysregulation of hormone levels and cancer.

GC-MS Rapid and Reliable Detection of Dissolved Gases in Water

  
  
  
  
  
  
gc analysis of fracking gases

I am pleased to present a recently developed, simple, reliable and robust gas chromatography method for identifying and quantifying methane, ethane, ethylene, and propane in environmental waters affected by hydraulic fracturing operations. (In case you are interested in this subject, the last post on this topic was in September and was titled, Ion Chromatography Speeds Hydraulic Fracturing Wastewater Analysis.)

Gas Chromatography Botany Research Studies (2)

  
  
  
  
  
  
gc-ms botany genetics studies

It has been a while since I have featured chromatography research studies in the field of plant physiology and when I checked the list of peer-reviewed articles from my HighWire subscription, I found I had several fascinating GC-MS studies that would be of interest to our blog readers. So here goes!

GC-MS/MS Provides Powerful Detection of Low-Level Alkylphenols

  
  
  
  
  
  
surfactant analysis using gc-ms

Here, I am pleased to feature a recently released GC-MS/MS method for the detection of  alkylphenol compounds (link to APE Research Council page) in food and environmental matrices.

Chromatography and Sample Preparation Terminology Guide

  
  
  
  
  
  
chromatography terminology

In this very short blog post, I wanted to provide a link to a great resource, Advanstar Science's Chromatography and Sample Preparation Terminology Guide (link to page where you can click Register, fill out a brief form and then download the guide).

GC-MS Analysis of Pesticides: Downloadable e-Book!

  
  
  
  
  
  
analysis of pesticide residues GC–MS

I am so pleased to offer you this new 52-page interactive e-book, developed by LCGC, on the advances in the analysis of pesticide residues using gas chromatography–mass spectrometry (GC–MS) methods.

GC-MS/MS Workflows for Metabolomics Experiments

  
  
  
  
  
  
gc-ms metabolite analysis

Did you know that there are up to 5 million metabolites (link to Wikipedia) in the plant kingdom? As a result, the identification and monitoring of these compounds can be extremely challenging. Here, I am pleased to present a couple of resources on the use of gas chromatography-mass spectrometry techniques that can increase the number of identifiable and selectively quantifiable metabolites by combining analytical methods for the different phases of the analysis. (By the way, previously I had written about the use of capillary ion chromatography and HR/AM for the metabolite profiling of oral cancers.)

GC-MS & GC-ECD Methods for Pesticides in Fruit & Tea Research Studies

  
  
  
  
  
  
gc-ecd pesticides in tea

Here, I am pleased to present two research studies describing the use of gas chromatography-mass spectrometery (GC-MS) and gas chromatography-electro capture dectectorchemical (GC-ECD) for the analysis of pesticides in strawberries and tea respectively. Sounds like a lovely English afternoon doesn't it except for the pesticides bit. Did you know that 80% of the strawberries in the United States are supplied by one state, that is, California? Here's a comprehensive read on all you ever wanted to know about strawberries from how they are grown, why are they getting bigger and yet less flavorful, and what organic strawberries actually mean: The Secret Life Of California's World-Class Strawberries (link to article).

GC-MS & LC-MS Methods for Analysis of Pesticide Poisoning in Wildlife

  
  
  
  
  
  
gc-ms analysis of wildlife poisoning

Did you know that poisons, and pesticides in particular, have been used to kill wildlife all over the world and now 83% of African countries have banned the killing of wildlife with poisons? (Link to study.) I learned that wildlife is poisoned as some animals are considered a nuisance for humans while other animals, birds, and fish are poisoned as they are used as sources of food, traditional medicines, or products. In the study linked to in the first sentence, Dr. Ogada of The Peregrine Fund (National Museums fo Kenya, Kenya), calls for "banning pesticides, improving pesticide regulations and controlling distribution, better enforcement and stiffer penalties for offenders, increasing international support and awareness, and developing regional pesticide centers."

Gas Chromatography Toxicology Research Studies (4)

  
  
  
  
  
  
headspace gas chromatography toxicology

It has been a while since I have featured a gas chromatography forensic toxicology study, and when the first study, described below, came through in my HighWire alert, it went on my list to write about along with a study I had received a while back.

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