Voltammetric analyzer TomAnalit PAN-As
Voltammetric arsenic analyzer PAN-As designed to measure the mass concentration of arsenic by stripping voltammetry. It has three measuring channels, allowing you to simultaneously obtain three measurement results. The determination of arsenic on the analyzer is carried out automatically, without the use of a computer and with minimal operator participation. Automation of analysis eliminates the possibility of operator error, reduces the requirements for operator qualifications and increases productivity. Operating principle Measurement of the mass concentration of arsenic (III) ions in a sample solution using stripping voltammetry. All forms of arsenic are converted to the arsenic (III) form at the stage of sample preparation for measurements. The duration of sample preparation depends on the type of sample being analyzed and varies from 2 hours (water, soil extracts) to 6-9 hours (food products). Methods for preparing samples for measurements are described in the Operation Manual for the PAN-As analyzer and in the measurement procedures included with the analyzer. The operation of the analyzer is controlled using the system menu displayed on the display of the analyzer with a touch control panel. Objects of analysis: food products (alcoholic and non-alcoholic drinks, milk and dairy products, fatty products, meat, fish, cereals, flour, sugar, vegetables, fruits and their processed products; water (natural, drinking, waste, technological); perfumery, cosmetics; soil, peat, silt, bottom sediments. The range of measurements of arsenic in water, soil, and food products makes it possible to determine arsenic at concentration levels significantly below the permissible level (maximum permissible concentration). Test objects Range of determined contents according to GOST* Range of determined contents by methods Drinking water, waste water, natural water, mg/dm³ from 0.0020…0.50 0.0010…0.20 Soil, grounds, bottom sediments, mg/kg 0.10…40 Solid waste (water-soluble forms), mg/kg 0.10…40 Food products, food raw materials, mg/kg depending on the type of product 0.0050…5.0 Alcoholic and non-alcoholic drinks, mg/dm³ 0.040…3.0 0.0050…5.0 Fish products, mg/kg 0.030…10.0 0.0050…5.0 Oil and fat products, mg/kg 0.040…1.1 0.0050…5.0 Milk and dairy products, mg/kg 0.0040…1.0 0.0050…5.0 Meat and meat products, mg/kg 0.0020…3.0 0.0050…5.0 Grain, mg/kg 0.020…2.0 0.0050…5.0 * GOST 31628-2012, GOST 31866-2012 Operating conditions: ambient temperature 10...35 °C; relative humidity at 25 °C 30...80%; atmospheric pressure 84.0…106.7 kPa; average service life of at least 5 years. Basic package: PAN-As analyzer; electrodes: - carbon containing with a protective cap, 4 pcs.; - silver chloride with a protective cap, 4 pcs.; - housing for silver chloride electrode, 3 pcs.; device for renewing the surface of electrodes; pipette dispenser 0.005…0.050 ml; pipette dispenser 0.1…1.0 ml; graduated glass with a volume of 25 ml, 5 pcs.; GSO composition of an aqueous solution of arsenic (III) ions, 5 ml; solution for modifying the surface of carbon-containing electrodes, 5 ml; power cord; instruction manual; verification method; methods for determining arsenic in food products; method for determining arsenic in waters; method for determining arsenic in soil. Manba: https://www.nv-lab.ru/catalog_info.php?ID=3297
- Parameter: Value
- Measurement range of mass concentration of arsenic (III) ions: - in electrochemical cell solution, mg/dm³ - in drinking, natural, mineral and waste water, mg/dm³ - in food products, food raw materials, dietary supplements, mg/kg - in soils, bottom sediments, solid waste, mg/kg: 0.00050...0.050 on;0.0020…0.50;0.0050…5.0;0.10…40
- Limits of permissible relative error in measuring the mass concentration of arsenic (III) ions, %: * - with a mass concentration of arsenic (III) ions 0.00050...0.0010 mg/dm³ (inclusive) - with a mass concentration of arsenic (III) ions 0.0010...0.050 mg/dm³ (inclusive): ±40±30
- Power supply, V/Hz: 220/50
- Power consumption, W, no more: 20
- Dimensions, mm, no more: 255×155×115
- Weight, kg, no more: 2.0
- Continuous operation (work / break), hours: no more than 8 / no less than 1