LGC AXIO Proficiency Testing Schemes 2027
Surface and groundwaters (Qualitative) Sample Code Matrix Analytes PT-AQ-22 Qualitative Organics by GCMS Test solution(s)
Ten organic analytes are provided for qualitative identification. This sample is designed to test the ability of laboratories to identify organic compounds via GCMS analysis. Six organic analytes are provided for qualitative identification. This sample is designed to test the ability of laboratories to identify organic compounds via purge and trap GCMS analysis.
PT-AQ-22A Qualitative Organics by Purge and Trap GCMS
Test solution(s)
PT-AQ-25 Qualitative Determination
Test solution(s)
The intent of this sample is to test the ability of laboratories to detect and identify an unknown contaminant in surface/ potable waters.
Waste Waters & Effluents – Inorganic and Nutrients Sample Code Matrix Analytes PT-AQ-10
Spiking solution(s)
Total Oxidised Nitrogen (TON); Nitrate; Nitrite; Ammonia; Total Silicate; Soluble Reactive Phosphorus (PO4); Chloride; Total Cyanide; Kjeldahl Nitrogen; Free Cyanide; Total Nitrogen; Total Phosphorus
Nutrients and other analytes PT-AQ-11 Non-specific Analytes
Spiking solution(s) BOD (5 day); COD; Suspended Solids; Methylene Blue Active Substances (MBAS); Dissolved/Total Organic Carbon; Turbidity; Non-Ionic Surfactants
PT-AQ-12 Metals Synthetic effluent Antimony; Arsenic; Aluminium; Chromium; Beryllium; Iron; Manganese; Cadmium; Copper; Lead; Nickel; Zinc; Mercury; Selenium; Molybdenum; Tellurium; Uranium; Titanium PT-AQ-12C Chromium (VI) Synthetic wastewater sample Chromium (VI) PT-AQ-15 Settleable Solids Deionised water Settleable solids PT-AQ-29 High and Low COD Spiking solution(s) COD – high; COD – low PT-AQ-35 BOD/COD at high concentration Spiking solution(s) COD; BOD Waste Waters & Effluents – Industrial Waste Waters Sample Code Matrix Analytes PT-AQ-17A Major Waste Water Analytes Deionised water pH at 20-25°C; Settled Chemical Oxygen Demand (COD); Total COD; Suspended Solids; Conductivity (20°C); Total Dissolved Solids; Non Filterable COD; Salinity
PT-AQ-17B Total Phenol, Cyanide, Sulfate and Fluoride
Synthetic effluent Total Phenol; Total Cyanide; Sulfate; Fluoride
PT-AQ-17C Metals
Synthetic effluent Aluminium; Antimony; Arsenic; Barium; Boron; Beryllium; Cadmium; Chromium; Cobalt; Copper; Iron; Lead; Manganese; Molybdenum; Mercury; Nickel; Selenium; Silver; Tin; Vanadium; Zinc; Titanium
PT-AQ-17D Ammonia, Phosphate & Nitrogen
Deionised water
Ammonia; Soluble Reactive Phosphorus (PO4); Total Phosphorus; Total Nitrogen
PT-AQ-32 Sulfide PT-AQ-60 M-Certs
Test solution(s)
Total Sulfide
Test solution(s)
Ammonia; COD; Conductivity (20°C); Nitrate; Nitrite; Orthophosphate; pH at 20- 25°C; Total Aluminium; Total Arsenic; Total Copper; Total Mercury; Total Cadmium; Total Iron; Total Lead; Total Nickel; Total Zinc; Turbidity
PT-AQ-63 Acetate & Iodide
Spiking solution(s) Acetate; Iodide
Download Application Form Download Scheme Description
lgcstandards.com/AXIO-PT 75
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