1. Schema de intercomparare AQUACHECK 2023 - runda AQ649, proba 1S Major Inorganic Components in soft, surface water. Target analytes: Calcium; Magnesium; Total Hardness; Alkalinity; Potassium; Sodium; Chloride; Sulfate; Fluoride; Conductivity (20°C); Kjeldahl Nitrogen; Total Phosphorus; Barium. Supplied as: 2 x 1L soft, surface water 1 x 30mL Kjeldahl nitrogen spiking solution 1 x 30mL total phosphorus spiking solution....

1. Schema de intercomparare AQUACHECK 2023 - runda AQ649, proba 1S Major Inorganic Components in soft, surface water. Target analytes: Calcium; Magnesium; Total Hardness; Alkalinity; Potassium; Sodium; Chloride; Sulfate; Fluoride; Conductivity (20°C); Kjeldahl Nitrogen; Total Phosphorus; Barium. Supplied as: 2 x 1L soft, surface water 1 x 30mL Kjeldahl nitrogen spiking solution 1 x 30mL total phosphorus spiking solution. Data planificata de livrare de la LGC: 10.07.2023, Pret = 2141 Lei, 2. Schema de intercomparare AQUACHECK 2023 - runda AQ649, proba 2S Nutrients and Others in Soft, surface water. Target analytes: Total oxidised nitrogen (TON); Silicate; Nitrite; Ammonia; Soluble reactive phosphorus (PO4); pH at 20-25°C; Conductivity (20°C); Colour; Permanganate index (PI); Total Cyanide; Free Cyanide; Nitrate; Total Dissolved Solids. Supplied as: 1 x 1L soft surface water sample; 8 x 30mL spiking solutions for nitrite, nitrate, ammonia, soluble reactive phosphorus, colour, permanganate index, total cyanide and free cyanide); 1 x 500mL pH/conductivity sample. Data planificata de livrare de la LGC: 10.07.2023, Pret = 2194 Lei, 3. Schema de intercomparare AQUACHECK 2023 - runda AQ649, proba 3 Non-Specific Analytes in Clean Water. Target analytes: BOD (5 day); COD; Suspended solids; Methylene blue active substances (MBAS); Non-ion

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