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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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Ion Chromatography Column: Improved Analysis of Small Polar Amines

  
  
  
  
  
  
ion chromatography column

This blog post features a recently released ion chromatography column for the analysis of smal polar amines (Thermo Scientific Dionex IonPac CS19-4┬Ám column) that uses smaller resin particles which results in more efficient peaks for the fast separation of inorganic cations, polar amines and moderately hydrophobic amines.

Accelerated Solvent Extraction in Toxicology Research Studies

  
  
  
  
  
  
sample preparation chromatography

This blog has previously featured the use of Accelerated Solvent Extraction (ASE) as an efficient, cost saving, and fast sample preparation technique in animal science, geoscience, environmental biology, and climate research research studies and, I believe, this may be the first post featuring toxicology research studies using ASE as a sample preparation technique.

Ion Chromatography: Analysis of Choline in Infant Formula Updated!

  
  
  
  
  
  
ion chromatography

I am pleased to feature an updated ion chromatography method to more easily determine total choline (free and bound forms) in 17 samples representing all forms of infant formula, adult nutritionals, and pediatric formulas (powder, ready-to-feed products, and liquid concentrates).

Capillary High-Pressure Ion Chromatography Technical Guide!

  
  
  
  
  
  
capillary high pressure ion chromatography guide

My favorite kind of posts are those which offer a really useful tool, such as a technical guide or application notebook without registration! And, so I am really pleased to present to our blog readers our latest release: Capillary High-Pressure Ion Chromatography Technical Guide (downloadable PDF without registration).

Accelerated Solvent Extraction Automates Fat Determination in Chocolate

  
  
  
  
  
  
determining fat content in chocolate

The poster note featuring our Accelerated Solvent Extraction (ASE) technique blogged here was presently very recently at Pittcon 2014, and when I saw it I had to write about it because it is a great application that speeds sample preparation significantly.

Capillary Ion Chromatography Speeds Analysis of Beverages

  
  
  
  
  
  
beverage analysis chromatography

I am pleased to present four short capillary ion chromatography methods for the analysis of functional beverages, carbonated fruit-flavored drinks, sports drinks, and a diet cola in this post. If you are new to capillary ion chromatography, here are some resources that can help you get up to speed on this type of chromatography works:

Accelerated Solvent Extraction & Ion Chromatography: Perchlorate Detection

  
  
  
  
  
  
testing perchlorate in fruit and vegetables

Did you know that in the last year, numerous reports have shown concerning levels of perchlorate in fruit and vegetables sold in Europe? As a result, the EU Commission (link to downloadable PDFs on perchlorate) has tasked the European Food Safety Authority (EFSA) to perform a comprehensive risk assessment of perchlorate in food (link to Opinion issued July 2013).

Gas Chromatography Analysis in Food Science Studies (II)

  
  
  
  
  
  
fish nutrition analysis gas chromatography

This blog post features the two remaining gas chromatography food science applications; the previous post (Gas Chromatography Analysis in Food Science Studies (I)) featured nutrition studies on pigs, chickens, chicken eggs and cows.

Solid-Core HPLC Column Technical Compendium Now Available!

  
  
  
  
  
  
HPLC columns for pharma, biopharma, and bioanalysis applications

I am pleased to present our recently released 58-page technical note compendium for our solid-core HPLC columns in this blog post!

Capillary Ion Chromatography Speeds Analysis of Coffee

  
  
  
  
  
  
coffee bean analysis chromatographyChecking out our capillary ion chromatography library for food applications, I just realized that it has been a very long time since I presented updated or new methods for the analysis of coffee. (The previous post on the use of ion chromatography for the analysis of instant and green coffee extracts was released in Aug of 2012.) Here, I am pleased to briefly present two direct, selective, and sensitive methods for the analysis of coffee quality.

For those new to food quality testing, coffee carbohydrates are used to profile coffee beans to determine adulteration in Arabica coffee beans by green coffee beans or by the cheaper and less palatable Robusta variety beans. The advantage of using High Performance Anion-Exchange chromatography and Pulsed Amperometric Detection (HPAE-PAD) for the analysis of carbohydrates lies in the fact that carbohydrates can be directly determined without lengthy and costly derivatization.


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