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Dionex Corporation. (12/10). "Press Release: Dionex Demonstrates Quantification of Polyaromatic Hydrocarbons with a Boron-doped Diamond Electrode". Sunnyvale, CA.

Organisation Organisation Dionex Corporation
  Group Thermo Fisher (Group)
Product Product  HPLC (high performance liquid chromatography)
     


Dionex is proud to announce a powerful new method that extends the usefulness of electrochemical detection (ECD) to polyaromatic hydrocarbon (PAH) compounds that do not respond to ECD using typical carbon-based electrodes. Application Note 265: Quantification of Polyaromatic Hydrocarbons with a Boron-Doped Diamond Electrode uses the Coulochem® III detector and gradient high-performance liquid chromatography (HPLC) with a boron-doped diamond (BDD) electrode to detect and quantify aromatic, genotoxic compounds down to tens of pg on column.

The BDD working electrode, with its ability to be used at high potentials, extends the range of compounds that can be measured electrochemically. By generating reactive oxygen species, and with gradient elution conditions, compounds like PAHs can be modified in situ by hydroxylation reactions, thereby rendering the compounds electrochemically active. This method shows good linearity, reproducibility, and sensitivity (~20 pg on column). Use of the Coulochem III detector, the BDD electrode, and the chemistry demonstrated in this method allows for quantitative results for aromatic compounds that cannot be analyzed using conventional HPLC-ECD approaches.


Dionex (NASDAQ:DNEX) is a global leader in the manufacturing and marketing of liquid chromatography and sample preparation systems, consumables, and software for chemical analysis. The company's systems are used worldwide in environmental analysis and by the life sciences, chemical, petrochemical, food and beverage, power generation, and electronics industries. Our expertise in applications and instrumentation helps analytical scientists to evaluate and develop pharmaceuticals, establish environmental regulations, and produce better industrial products.

Coulochem is a registered trademark of Dionex Corporation.



   
Record changed: 2016-03-19

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