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Brochure, flyer, fact-sheetStandard operating procedure for soil available micronutrients (Cu, Fe, Mn, Zn) and heavy metals (Ni, Pb, Cd), DTPA extraction method 2022
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No results found.The method provides a potential indicator of the plant available copper, iron, manganese and zinc, which are essential soil micronutrients for plant growth and living organisms. It can be used to extract heavy metals such as nickel, lead and cadmium assisting with conclusions as to their potential bioavailability. This method must be used in combination with suitable determination methods, for example, flame atomic absorption spectrometry, electrothermal atomic absorption spectrometry or inductively coupled plasma – optical emission spectrometry. -
BookletStandard operating procedure for heavy metal determination in phosphate fertilizer materials 2024
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No results found.The International Network on Soil Pollution (INSOP) and the International Network on Soil Fertility and Fertilizers (INSOILFER) harmonize standard operating procedures (SOPs) for determining the analysis of fertilizers and make them available online – to all users for free. SOPs offer step-by-step instructions on how to perform laboratory analyses. SOPs are a critical component in ensuring the quality, safety and replicability of measurements and the credibility and traceability of data. The globally harmonized protocol for detecting heavy metals in fertilizers was developed with the assistance of 85 laboratories from 60 countries. Its aim is to facilitate the quality and safety analysis of heavy metals in fertilizers. -
Brochure, flyer, fact-sheetStandard operating procedure for soil total nitrogen - Dumas dry combustion method 2021
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No results found.This Standard Operating Procedure (SOP) describes, in general terms, the quantification of TN content in soil samples by an elemental analyzer. The procedure measures both organic nitrogen and inorganic nitrogen together. A typical limit of detection is 0,1 g kg-1 N, and a typical limit of quantification is 0,3 g kg-1 N, however this varies depending on the manufacturer and detector settings.
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