blog masthead 828x138

 

 

 

 

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).

Subscribe via E-mail

Your email:

Our Twitter Feed...


Follow Me

Browse by Tag

Current Articles | RSS Feed RSS Feed

HPLC Determination of Growth Stimulants in Farm Animals

  
  
  
  
  
  
fast HPLC analysis of clenbuterol, ractopamine, and phenolethanolamine in meat

This blog post features the efficient and sensitive HPLC analysis of the synthetic compounds clenbuterol, ractopamine, and phenolethanolamine which have been extensively used as growth stimulants in farm animals (and by athletes seeking enhanced performance). The reason for concern is that these compounds, grouped as e β2-agonists, may remain as residues in meat intended for human consumption. While food safety concern for the presence of ractopamine is low, high levels of clenbuterol can cause severely increased heart rate and blood pressure, anxiety, palpitation, and skeletal muscle tremors. (Source & link: Centre for Food Safety in HongKong.) Clenbuterol has been banned by many countries including the USA, European Union, and China; and, the newly introduced phenolethanolamine is already banned in China.

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 CS19-4µm 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!

All Posts