Corporate Banner
Satellite Banner
Chromatography
Scientific Community
 
Become a Member | Sign in
Home>Resources>Application Notes>This Application Note
  Application Notes
Scientific News
Impact of Emerging Contaminants in Our Water Supply
Emerging contaminants, any synthetic or naturally occurring chemical not commonly monitored in the environment, in our water supply are becoming of increasing concern due to their potential ecological and/or human health effects.
Collaboration to Develop Cannabis Testing Standards
SCIEX workflow solution enables cannabis labs to ensure product safety with robust, cost-effective analytical methods to facilitate routine testing.
Antibiotic Resistance Genes in Indoor Dust
Genetic analyisis of dust samples discovered antimicrobial chemicals and antibiotic-resistance genes.
Hacking Microbes
Startup’s engineered yeast helps clients produce fragrances and flavors more efficiently.
Identifying People Using Human Hair Proteins
In an important breakthrough for the forensic science community, researchers have developed the first-ever biological identification method that exploits the information encoded in proteins of human hair.
Peptide Mutants Help Identify Vulnerability in Tumor Cells
Researchers can detect mutant proteins based on MS data and the results of exome sequencing.
Diverse Fungi Secrete Similar Suite of Decomposition Enzymes
A recent study reveals different fungal species secrete a rich set of enzymes that share similar functions, despite species-specific differences in the amino acid sequences of these enzymes.
Lower Mortality with Polyunsaturated Fat
In a study from Uppsala University the fatty acid linoleic acid (Omega 6) in subcutaneous adipose tissue was linked to lower mortality among older men followed over a 15-year period.
How Cloud Connectivity Can Combat the Reproducibility Crisis
This infographic explains the reproducibility crisis, and how cloud connectivity can help overcome this problem.
Simplifying Drug Development
Scientists have for the first time revealed the nanostructure of the mesoporous magnesium carbonate Upsalite® and controlled pore size without organic molecules as templates or swelling agent.
Scroll Up
Scroll Down

Determination of Total Cyanide in Municipal Wastewater and Drinking Water Using Ion-Exclusion Chromatography with Pulsed Amperometric Detection (ICE-PAD)
Bookmark and Share

Dionex Corporation

Cyanide is regulated as an environmental contaminant by the US EPA for drinking water, surface water, and wastewater due to these health concerns.

Total cyanide is defined by the US EPA as free cyanide ion and complex cyanides that are converted to hydrocyanic acid (HCN) during strong acid digestion. More recently, total cyanide also includes ferrocyanide and ferricyanide due to free cyanide formed by exposure to light.7 For drinking and surface waters, the US EPA has established a maximum contamination level (MCL) of 200 μg/L free cyanide determined by a total cyanide assay. To determine total cyanide, the sample is digested
with sulfuric acid to convert the cyanide to hydrogen cyanide gas, aspirated into a strong caustic solution, then assayed.

In this Application Note, the authors describe a method with PAD using a Pt disposable working electrode and a waveform optimized for determination of total cyanide in drinking and wastewater.

Further Information

Related Content

Simple Method for Measuring Sialic Acids in Infant Formula in Half the Time
A new method for the simple determination of sialic acids that are present in infant formula in the pmol range has been announced by Dionex.
Wednesday, December 08, 2010
SPE Method to Recover Low Concentrations of Microcystins in Water
A newly developed method that can fully recover low concentrations (< 1 µg/L) of three microcystins (-RR, -YR, and -LR) when added to water samples has been announced by Dionex.
Thursday, November 18, 2010
FDA Chooses Award Winning Ion Chromatography System from Dionex for Analysis of Biogenic Amines
Dionex is pleased to announce that the United States Food and Drug Administration (FDA) in Irvine, California have purchased the new, award-wining Dionex ICS-5000 (analytical and capillary scale) with Mass Spectrometry system for the analysis of biogenic amines (histamine, putrescine, and cadaverine) in fish samples.
Tuesday, November 16, 2010
Dionex Announces EPA Federal Register Approval of Ion Chromatography for Total Cyanide Analysis
Dionex Corporation have announced that the United States EPA is proposing to add new and revised methods published by EPA, voluntary consensus organizations such as ASTM International, and other commercial entities, for use in water quality monitoring. These changes and additional methods will provide increased flexibility to the regulated community and laboratories in their selection of analytical methods for use in Clean Water Act programs.
Monday, November 08, 2010
A Simplified Determination of 2-Ethylhexanoic Acid in Clavulanate
Dionex have developed a simplified method for the detection and quantification of 2-ethylhexanoic acid, a potential impurity in potassium clavulanate active pharmaceutical ingredient (API) incorporated during sample purification.
Thursday, October 28, 2010
SELECTBIO

SELECTBIO Market Reports
Go to LabTube
Go to eposters
 
Access to the latest scientific news
Exclusive articles
Upload and share your posters on ePosters
Latest presentations and webinars
View a library of 1,800+ scientific and medical posters
3,500+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
5,000+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FOR FREE!