Sunday, November 09, 2008

Analyze Cyanide Quickly, and Accurately.
Stop wasting time distilling samples and fill your wallet with cash!



“Finally an amazingly simple way to measure cyanide in your laboratory and double or triple profits immediately.”

Are you tired of wasting time and spending money on time-consuming, inaccurate, distillation bottlenecks?


How about sample throughput? Are you sick of your inability to expand because of the extra work from increasing your workload?


Are your clients getting ahead of you, or are they charging less than you and effectively stealing your business because you can’t keep up?


The secret that will save you money is the OI CNSolution. Its unique capability of analyzing for all forms of cyanide without time consuming and costly distillations eliminates distillation and minimizes interferences producing more reliable results and allowing faster turn around times.



Even if Distillation is required, Gas diffusion – amperometry is superior.
The colorimetric methods used in most laboratories require determining total cyanide after distillation by EPA 335.4 or SM4500. The OI CNSolution has been proven more accurate than colorimetric methods.


The low cost of operating the Gas Diffusion - Amperometric FIA instruments allows dischargers to frequently monitor their processes making it possible to quickly detect problems before they can cause serious ecological damage. Routine daily, or even hourly, testing can be realistically implemented so that exact cyanide discharge levels can be accurately known.

The OI CNSolution saves you time.


Aquatic Free Cyanide
Cyanide is about 1000 times more toxic to aquatic life than it is to humans. For this reason, it is important that free cyanide be measured in fragile aqueous environments. Free Cyanide is defined as the amount of HCN that is liberated from a solution at pH 6.0, and should only measure cyanide present in solution as HCN or as CN-.
The OI CNSolution accurately measures aquatic free cyanide by ASTM D7237-06.

The only automated method for free cyanide!


Simple Cyanide Compounds
Simple Cyanides are the readily soluble salts of cyanide such as sodium, potassium, and calcium and along with free cyanide are the only cyanide complexes likely to be present in Drinking Water.
The OI CNSolution accurately measures free cyanide in drinking water by OIA1677-DW or ASTM D6888-04. These flow injection methods are the only interference free approved methods for the determination of cyanide in drinking water that do not require time consuming and expensive preliminary distillations.

Time – consuming distillation is not required!


The OI CNSolution may also be used to accurately measure simple cyanide in milk, assorted beverages, and food extracts.

No distillation required!




Weak and Moderately Strong Metal-Cyanide Complexes
Weak to moderately strong metal-cyanide complexes are compounds that could readily release hydrogen cyanide gas from an acid. Weak Acid Dissociable (WAD), Cyanide Amenable to Chlorination (CATC), and Ligand Exchange methods have been devised in an effort to quantify these complexes.

Do you consistently get false positives or false negatives?
It’s not your fault it’s the methods fault!
CATC and WAD methods, and all distillation colorimetric methods for cyanide are proven inaccurate!

Simply changing your method will solve everything!





The OI CNSolution accurately measures Available Cyanide in wastewater by OIA1677 or ASTM D6888-04, and in ore processing and related metallurgical materials. Gas-diffusion Amperometric flow injection methods are the only interference free approved methods for the determination of available cyanide in wastewater that do not require time consuming and expensive preliminary distillations.

CATC and WAD Cyanide without distillation!
Get results within minutes instead of hours or days!
Increase Capacity up to hundreds of samples per shift!
Dramatically Increase Profits!












Strong Metal - Cyanide Complexes
Commonly known as "total" cyanide and defined by the USEPA as cyanide ion and complexes converted to hydrogen cyanide gas by reflux distillation in the presence of strong acid and the magnesium ion. Methods for the analysis of "total cyanide" include ferrous and ferric complexes along with all other previously mentioned forms. Thiocyanate or cyanate ions are not included.
Colorimetric post distillation OI CNSolution precisely measures cyanide in distilled samples according to EPA 335.4. This flow analysis method is currently the only approved automated, commercially available method for the determination of total cyanide in wastewater samples.

EPA 335.4 and SM 4500 methods are inaccurate!

Years of testing and experiments have demonstrated that distillation and colorimetric methods of cyanide analysis do not accurately yield quantitative, or even qualitative, results in samples with complex matrices.

It has been shown that sulfide interferes significantly. Abundant literature references of efforts to minimize sulfide interference have been found to be ineffective.


The only accurate way to determine post - distillation total cyanide in sulfide bearing samples is to use the OI CNSolution in accordance with ASTM D7284-08.


Distillation is time-consuming and introduces error.

Even with post distillation Gas-Diffusion Amperometric Flow Injection Analysis it is not possible to determine total cyanide in complex samples that contain combinations of, or all of, the following ions; thiosulfate, sulfite, nitrate, nitrite, thiocyanate, and peroxide. The US 40CFR mentions that it is not possible to determine cyanide after distillation from samples containing thiosulfate or sulfite.

Eliminating distillation improves results!









The only method that determines total cyanide in these complex matrices is the Non-distillation OI CNSolution. The UV irradiation gas-diffusion amperometry method uses low temperature, low strength UV technology to selectively disassociate cyanide ions from metal complexes while not allowing the simultaneous destruction or creation of cyanide that is common with high heat distillations.
The OI CNSolution accurately determines true total cyanide rapidly and without distillation.







Total Cyanide Results in minutes, not hours or even days!

Dramatically increase profits – no unnecessary labor costs.
Quit waiting around and decrease TAT