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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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Why Attend an International Symposium on Pesticide Analysis?

  
  
  
  
  
  
pesticides analysis conference in prague

After reading the title of this post, perhaps you are wondering to yourself: Why organize yet another meeting on analysis of pesticides? Firstly, this two-day symposium, titled, 1st International Symposium on Recent Developments in Pesticides Residues Analysis, (link to symposium registration page), is intended to complement other well-established workshops, such as, EPRW and LAPRW. We are organizing the symposium to provide a platform for our customers to discuss robust, fit-for-purpose routine applications and the use of emerging technologies for the development of new and future workflows. In particular, we will present the further advancements, such as increased speed, higher resolving power, and improved analysis quality, of our Orbitrap technology for both targeted and screening pesticide analysis plus we will also be covering topics, such as sample preparation, GC-MS/MS, LC-MS/MS and IC-MS/MS and the latest in software advances to help with data interpretation and reporting.

Gas Chromatography Consumables: Tips for Best Results

  
  
  
  
  
  
gas chromatography consumables

In my last two installments in this series, I covered Hydrophobic Interaction Liquid Chromatography (link to blog post) and Sample Preparation: Three Techniques Reviewed (link to blog post); and here, I would like to provide you with some helpful tips and references on how to select the correct gas chromatography (GC) consumable for your experiment.

Elemental Speciation for Environmental Testing: Spotting the Bad

  
  
  
  
  
  
chromium and arsenic speciation using IC-ICP-MS

After my last two posts on dealing with the challenges of interference in trace elemental analysis (link to post) and an overview on the analysis of fracking wastewater (link to post), I thought I would turn my attention to discussing elemental speciation in this post.

The Smell of a New Car can be Revealed by Thermal Desorption GC-MS

  
  
  
  
  
  
analysis of vocs in car

When I am fortunate enough to buy a new car, one of my pleasures in the new car is the pure joy of sitting inside it and smelling that lovely mix of luxury and brand-new materials. Have you ever wondered what that new car smell is actually? Well, you’re in luck, as in this post, I will present a recently released thermal desorption GC-MS method for the analysis of air in new cars but also talk a little about legislations around the globe to monitor and control the air quality inside a new car plus if these emissions are safe.   

Authenticity of Dietary Supplements in Question: A Recall in New York

  
  
  
  
  
  
dietary supplement authentication by HPLC

The authenticity and efficacy of dietary supplements (DS) have been a concern for many years now. And, on Tuesday, February 3, the New York State Attorney General’s Office announced a state-wide recall of herbal supplements sold through multiple major retailers (link to story). The recall is a result of a study conducted by authorities that found that many of these products were fraudulent and potentially dangerous. Supplements called into question include products said to contain Ginkgo Biloba and St. John’s wort, amongst others.

Heavy Metals in Food: ICP Analysis or Time for a Detox?

  
  
  
  
  
  
heavy metal analysis in food

As my friend has just finished his January health detox diet (link to webmd site) apparently feeling much the better for it and I was wondering about the real science behind it. During some simple web searching I became distracted by some fascinating products for performing a heavy metals detox and I will be honest I had never heard of this; but, having a keen interest in trace metal analysis I dug deeper.

How Are You Analyzing Anions in Concentrated Caustic Soda?

  
  
  
  
  
  
sodium hydroxide analysis

A key challenge in chlor-alkali production processes is the need to monitor the formation of contaminants and by-products in concentrated caustics. Ion chromatography with suppressed conductivity detection is the preferred method for determining ionic species in aqueous media, especially at ppm and ppb concentrations. (Check out this downloadable White Paper: Conductivity Detection in Cation Chromatography—Advantages and Disadvantages of Suppression, for more details on suppressed conductivity detection.)

EPA Completes First Phase Evaluation of GC Air Monitoring Technology

  
  
  
  
  
  
air monitoring gc-ms

In my very first blog post, my focus is on how functional enhancements in new or updated instrumentation can produce more sensitive measurement of targeted compounds and provide fresh perspective and enhanced interpretation of routinely analyzed samples in environmental analysis

A Milestone in Pesticides Analysis for Orbital Trap Mass Spectrometry

  
  
  
  
  
  

Testing Total Acids in Wine Using Automated Photometric Methods

  
  
  
  
  
  
analysis of tartaric acid in wine samples

Here, in my first post on the advantages of using discrete photometric analyzers, I will be addressing the challenges of testing wine elements that contribute towards the taste of a good wine. Typically, wine drinkers look for a robust mouth experience which is the result of amount of acidity in wine, one of its most appealing characteristics and which complements foods in a palate-cleansing manner (link to page on totalwine.com). If a wine is too low in acid, it tastes flat and dull; too high in acid and it is tart and sour. Natural acids, such as tartaric, malic, and citric have the freshest, purest acid tastes. Fermentation acids, like lactic and acetic, add milder, complex flavors. Since acidity greatly influences the taste of wine, winemakers need to understand the role that each of the various acids plays during fermentation and production to ensure an end product with great lasting flavor. Common methods for determination of acids can be accessed in AOAC Official Methods of Analysis 945.08, 950.15, 962.12 (19th edition).

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