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Specifications:
| Application | Analytical Chemistry | ||
| Storage Temperature | Room Temperature | ||
| Product Type | Laboratory Chemical | Forms | Tablets |
| Product Brand | VWR | ||
| Product Grade | Analytical grade | ||
Kjeldahl tablets are catalysts that promote the digestion step of the Kjeldahl method for nitrogen determination.
- Wide range of catalysts available
- Different sizes of tablet available
- Tablet format is easy to use
The Kjeldahl method is used in a wide range of analyses including analysis of proteins, nitrogenated organic materials and also, after reduction, for analysis of nitrates and nitrites. Therefore, the method is used widely in applications from food and beverage testing to agricultural and environmental analysis.
Total Kjeldahl Nitrogen (TKN) is often used as a parameter in wastewater and soil analysis.
A wide range of catalysts have been developed over the 130 year history of this method to provide ever more rapid and safe digestion methods for particular sets of digestion conditions. Avantor offers a comprehensive range of 'ready to use' tablets to meet the optimal requirements for the sulphuric acid decomposition phase.
- Tablets Description & Composition: Kjeldahl Catalyst free of mercury and selenium, 3.5 g; Contains K₂SO₄, 23.10%; Na₂SO₄, 69.30%; CuSO₄, 1.80%; TiO₂, 2.80% Kjeldahl Catalyst free of mercury and selenium, 5.0 g; Contains K₂SO₄, 23.10%; Na₂SO₄, 69.30%; CuSO₄, 1.80%; TiO₂, 2.80% Kjeldahl Catalyst Missouri, 5.0 g; Contains K₂SO₄, 48.40%; Na₂SO₄, 48.30%; CuSO₄, 0.30% Kjeldahl Catalyst Wieninger, 3.5 g; Contains Na₂SO₄, 96.25%; CuSO₄, 1.50%; Se, 1.50% Kjeldahl Catalyst Wieninger, 5.0 g; Contains Na₂SO₄, 96.25%; CuSO₄, 1.50%; Se, 1.50% Kjeldahl Catalyst PS, 5.0 g; Contains K₂SO₄ Kjeldahl Catalyst CX, 5.5 g; Contains K₂SO₄, 5 g; CuSO₄-5H₂O, 0.5 g Kjeldahl Catalyst CT, 5.3 g; Contains K₂SO₄, 5 g; CuSO₄-5H₂O, 0.15 g; TiO₂, 0.15 g Kjeldahl Catalyst C, 5.1 g; Contains K₂SO₄, 5 g; CuSO₄-5H₂O, 01 g Kjeldahl Catalyst TCT, 3.71 g; Contains K₂SO₄, 3.5 g; CuSO₄-5H₂O, 0.105 g; TiO₂, 0.105 g Kjeldahl Catalyst CK, 3.9 g; Contains K₂SO₄, 3.5 g; CuSO₄-5H₂O, 0.4 g Kjeldahl Catalyst ST, 3.5 g; Contains K₂SO₄, 3.5 g; Se, 0.0035 g Kjeldahl Catalyst CTQ, 1.59 g; Contains K₂SO₄, 1.5 g; CuSO₄-5H₂O, 0.045 g; TiO₂, 0.045 g Kjeldahl Catalyst Antifoam, 1.0 g; Contains Na₂SO₄, 0.97 g; silicon-antifoam, 0.03 g Kjeldahl Catalyst NAS, 1.05 g; Contains Na₂SO₄, 1 g; Se, 0.05 g Kjeldahl Catalyst S, 5.005 g; Contains K₂SO₄, 5 g; Se, 0.005 g Kjeldahl Catalyst KS, 5.05 g; Contains K₂SO₄, 4.9505 g; Se, 0.0495 g Kjeldahl Catalyst W K150, 5.0 g; Contains K₂SO₄, 4.875 g; CuSO₄-5H₂O, 0.075 g; Se, 0.050 g Kjeldahl Catalyst IB61, 5.0 g; Contains K₂SO₄, 4,673 g; CuSO₄-5H₂O, 0.281 g; Se, 0.046 g Kjeldahl Catalyst AB04, 5.025 g; Contains K₂SO₄, 5 g; CuSO₄-5H₂O, 0.025 g