Corporate Banner
Satellite Banner
Scientific Communities
Become a Member | Sign in
Home>Resources>Application Notes>This Application Note
  Application Notes
Scientific News
High Throughput Mass Spectrometry-Based Screening Assay Trends
Dr John Comley provides an insight into HT MS-based screening with a focus on future user requirements and preferences.
How a Genetic Locus Protects Adult Blood-Forming Stem Cells
Mammalian imprinted Gtl2 protects adult hematopoietic stem cells by restricting metabolic activity in the cells' mitochondria.
Genetic Basis of Fatal Flu Side Effect Discovered
A group of people with fatal H1N1 flu died after their viral infections triggered a deadly hyperinflammatory disorder in susceptible individuals with gene mutations linked to the overactive immune response, according to a recent study.
New Tech Vastly Improves CRISPR/Cas9 Accuracy
A new CRISPR/Cas9 technology developed by scientists at UMass Medical School is precise enough to surgically edit DNA at nearly any genomic location, while avoiding potentially harmful off-target changes typically seen in standard CRISPR gene editing techniques.
The MaxSignal Colistin ELISA Test Kit from Bioo Scientific
Kit can help prevent the antibiotic apocalypse by keeping last resort drugs out of the food supply.
"Good" Mozzie Virus Might Hold Key to Fighting Human Disease
Australian scientists have discovered a new virus carried by one of the country’s most common pest mosquitoes.
Non-Disease Proteins Kill Brain Cells
Scientists at the forefront of cutting-edge research into neurodegenerative diseases such as Alzheimer’s and Parkinson’s have shown that the mere presence of protein aggregates may be as important as their form and identity in inducing cell death in brain tissue.
Closing the Loop on an HIV Escape Mechanism
Research team finds that protein motions regulate virus infectivity.
New Class of RNA Tumor Suppressors Identified
Two short, “housekeeping” RNA molecules block cancer growth by binding to an important cancer-associated protein called KRAS. More than a quarter of all human cancers are missing these RNAs.
Potential Treatment for Life-Threatening Viral Infections Revealed
The findings point to new therapies for Dengue, West Nile and Ebola.
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

US EPA to Begin Regulatory Process for Perchlorate in Drinking Water
On 2nd February the EPA announced a final regulatory determination for perchlorate in drinking water. This announcement from Lisa Jackson, Administrator for the US EPA, reversed a preliminary determination in 2008 not to regulate perchlorate.
Wednesday, May 04, 2011
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
Recent Research Demonstrates Determination of Total Phosphorus in Wastewater
Total Phosphorus in water is determined using Caro's Reagent and Ion Chromatography.
Tuesday, October 26, 2010
Dionex ICS-5000 RFIC System Wins Bronze Star at GIT Innovations Award 2010
Introduced at Analytica 2010, the ICS-5000 RFIC system made it through a rigorous selection process and voted as one of the winners.
Friday, April 30, 2010
Dionex Releases their Updated Mass Spectrometry Applications Guide
The update provides 12 new environmental and industrial applications.
Thursday, April 08, 2010
Dionex Acquires Swift Monolithic LC Media Technology
This deal expands and strengthens Dionex' polymer bead-based separation media technology platform for ion chromatography and HPLC.
Thursday, September 01, 2005
Dionex gets new CEO

Monday, July 01, 2002
Skyscraper Banner

Skyscraper Banner
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
2,800+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
4,000+ scientific videos