Cyanide Analysis with the CNSolution 3100
The CNSolution is your solution to cyanide analysis Gas diffusion amperometry methods: Save time Save money Are more accurate Have fewer interferences Are green The CNSolution = the FS3100 Change to a photometric detector and run any colorimetric chemistry
Cyanide Methods
Cyanide methods measure the various cyanide species Strong Metal Complexes Fe, Co, Pt, Au Total CN Available CN Weak to Moderately Strong Metal Complexes Ag, Cd, Cu, Hg, Ni, Zn Free CN HCN CN -
Manual distillation is used to dissociate as HCN Macro Distillation MIDI Distillations
Cyanide methods that utilize distillation have significant disadvantages Time Consuming One hour long distillation (does not take into account setup and teardown) CATC requires two, one hour distillations Bulky and Relatively Expensive Glassware Operator-dependent results (technique) Multiple Interferences
Gas diffusion eliminates distillation and associated cost Lowest cost Dollars per Year 12000 10000 8000 6000 4000 2000 0 Consumables + labor per year MicroDist Midi Dist CNSolution
Samples per 8 hour Shift Eliminating distillation increases laboratory capacity 800 Highest sample capacity 700 600 500 400 300 200 100 0 Midi Dist Micro Dist CNSolution
Aquatic Free Cyanide Analysis
ASTM D7237-06 can be run on a OIA1677 CNSolution analyzer Buffer Same Cartridge as OIA 1677
Obtain accurate, cost effective free cyanide results in minutes, not hours
Available Cyanide Analysis
Ligand Exchange methods measure available cyanide Method Number OIA 1677 ASTM D 6888 Description Measurement Ligand Exchange / Flow Injection Analysis Ligand Exchange / Flow Injection Analysis Gas Diffusion - Amperometry Gas Diffusion - Amperometry GD-amperometry methods do not require distillation
Ligand Exchange GD-amperometry methods get better recovery WAD CATC OIA 1677
Ligand Exchange GD-amperometry methods are more precise OIA 1677
OIA 1677 or ASTM D6888 flow diagram Acid Reagent
Ligand Exchange GD-amperometry methods have fewer interferences CATC WAD OIA 1677 N-organics SCN,NH 3,NO 2 Excessive Iron Cyanide Concentration Dependent None S 2 O 3, H 2 O 2 Concentration Dependent
Ligand Exchange GD-amperometry methods give you results in minutes CATC WAD OIA 1677 Sample Preparation 2 distillations 2 3 hours 1 distillation 2 3 hours No distillation Analysis 1 2 minutes 1 2 minutes 1 2 minutes Total Time 3 4 hours 3 4 hours 1 2 minutes
Samples per hour Ligand Exchange GD-amperometry methods means more samples 100 90 samples per hour 80 60 40 Distillation Diffusion 20 0
Ligand Exchange GD-amperometry methods provide the best benefits No distillation (eliminates 1 4 hours preliminary sample treatment) Low MDL (0.5 ppb) No Interferences High Throughput (up to 90 samples per hour) Ease of Operation, very simple chemistry.
Total Cyanide Methods Automated gas diffusion distillation and nondistillation methods
GD-amperometry provides the safest, easiest, and most accurate technique No pyridine Acid Reagent ASTM D7284-08 is a green chemistry
ASTM D7511 is easy to understand and operate and does not distill. No pyridine Green Chemistry
Analytical Throughput per 8 Hour Shift 800 700 600 500 400 300 200 100 0 Midi-Dist MICRO DIST CNSolution
Dollars Estimated Reagent and Consumable Cost per Analysis for Distillation (US Dollars) 8 7 6 5 4 3 2 1 0 Midi-Dist MICRO DIST CNSolution
Estimated Labor (in minutes) Required to Distill 20 Samples for Analysis 250 200 150 100 50 0 Midi-dist MICRO DIST CNSolution
Estimated Annual Labor Cost to Distill and Analyze 40 Samples per Month (Including Overhead) $7,000.00 $6,000.00 $5,000.00 $4,000.00 $3,000.00 $2,000.00 $1,000.00 $0.00 Midi Dist MICRO DIST CNSolution Assume tech pay at $15/hour
Estimated Annual Cost for Consumables to Distill and Analyze 40 Samples per Month $4,000.00 $3,500.00 $3,000.00 $2,500.00 $2,000.00 $1,500.00 $1,000.00 $500.00 $0.00 Midi Dist MICRO DIST CNSolution
Estimated Annual Cost for Reagents to Distill and Analyze 40 Samples per Month $2,500.00 $2,000.00 $1,500.00 $1,000.00 $500.00 $0.00 Midi Dist MICRO DIST CNSolution
Midi Dist MICRO DIST CNSolution Annual Cost for Distillation vs. Non- Distillation Techniques $25,000.00 $20,000.00 $15,000.00 $10,000.00 40 /month 100 / month $5,000.00 $0.00
Midi Dist MICRO DIST CNSolution Comparison of Cost per Sample by Cyanide Species and Method $35.00 $30.00 $25.00 $20.00 $15.00 $10.00 $5.00 $0.00 Available Total
Midi Dist MICRO DIST CNSolution Profit per Sample by Cyanide Species at $40 per Test $40.00 $35.00 $30.00 $25.00 $20.00 $15.00 $10.00 $5.00 $0.00 Available Total
Midi Dist MICRO DIST CNSolution Profit per Month by Cyanide Species at $40 per Test and 40 Samples per Month $1,600.00 $1,400.00 $1,200.00 $1,000.00 $800.00 $600.00 $400.00 $200.00 $0.00 Available Total
Midi Dist MICRO DIST CNSolution Profit per Shift by Cyanide Species at $40 per Test Based on Maximum Capacity $20,000.00 $18,000.00 $16,000.00 $14,000.00 $12,000.00 $10,000.00 $8,000.00 $6,000.00 $4,000.00 $2,000.00 $0.00 Available Total
Profit per Year Estimated Profit by Number of Samples Analyzed at Maximum Capacity $800,000 $700,000 $600,000 MICRO DIST $500,000 $400,000 Midi Dist $300,000 $200,000 $100,000 $0 40 100 200 400 800 1600 Samples per Month
Thoughts Regarding Break Even Analysis Manual distillation and manual spectrometer versus CNSolution Manual equipment costs 3 x less CNSolution profit 3 x higher per test Break Even = 1000 samples for both! That s 20 samples per week regardless
Description of the Analyzer
The CNSolution 3100 available cyanide system
The CNSolution 3100 total cyanide system UV irradiation
A close up of the analytical module Detector Gas Diffusion and Mixing Flow-cell
A high quality peristaltic pump Separate module, individual channels, long pump tube life.
A random access xyz sampler Integrated circulating wash station 90 or 360 positions Separate standard and QC vials
Winflow software provide accurate quantitation of CN results
The CNSolution 3100 is accurate, and cost effective Rapidly analyze cyanide Eliminate time consuming error causing distillations Expand capability to colorimetric FIA and SFA
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