Teste de Proficiência Interlaboratorial: - Esquema Aquacheck; - Amostra 14: Solos Agrícolas Inorgânicos e Elementos Específicos; - Amostra fornecida: 1 x 100 g de amostra de solo; - Principais Analitos: Arsenic, Cadmium, Chromium, Copper, Lead, Mercury, Molybdenum, Nickel, Vanadium, Zinc, Selenium, Total boron Water extractable boron, Fluoride, Total nitrogen, Total phosphorus, Total potassium, Cobalt, Iron, Manganese, Total solids, Loss on ignition pH at 20-25 o C, Extractable phosphorus, Extraction of potassium, Extraction of magnesium, Extraction of sodium, Organic carbon content, Conductivity e Carbonate content.