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The determination of trace elements and nutrients in soil is important to optimise the plant growth. For this issue filter papers with very low content of minerals is essential to get reliable analysis results. The average ash content of our quantitative papers is 0,004%, and 0,002% ash of the hardened quantitative papers - the purest paper in the filter market.
Target User:
Target Application:
Analysis of nutrients, mineral nutrients, contaminants and microbiological quality.
Ideal for the detection of trace elements like Mg, Mn, Zn, Co, Cu, Mo, and B.
OBJECTIVE | TECHNIQUE | TYPE of FILTER | PART NUMBER-GRADE |
|---|---|---|---|
Solid-liquid separation | Filtration (Funnel, Büchner) | Filter paper for general use | 0858 |
Measurement of nitrogen insoluble in water | Filter paper, qualitative analysis, low ash content | 2095 | |
Measurement of water-soluble and ammonium citrate- soluble phosphorus | Filter paper, qualitative analysis, low ash content | 512 | |
Measurement of nitrogen | Weighing paper / boats, free of nitrogen | 360, 365 | |
Measurement of nitrogen | Filter paper, quantitative analysis | 589/5 | |
Measurement of trace elements 1) | Quantitative filter paper | 589/1, 589/2 589/3, 589/4 589/5, 589/6 | |
Free amino acids and total amino acids | Filter paper, quantitative analysis | 589/2 589/5 | |
Measurement of carbonates | Water extraction | Filter paper for quantitative analysis | 0790 |
Measurement of soluble sulphates | Water extraction | Quantitative filter paper | 589/3 |
Determination of K and P | Egnér, Riehm and Lederle | Filter paper, low phosphates | 512 |
Measurement of solids in suspension | Filtration difference in weight | Glass microfibre filters | GF 52 |
Measurement of nitrates and phosphates by HPLC | Clarification of samples | 0.45 mm regenerated cellulose syringe filter | SCR 045 25 |
1) LEGISLATION: NLT-120/72: “Soluble sulphate content of soils" NLT test norms of the CEDEX Geotechnologic laboratory
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