Aluminium sheets (about 0.1mm thick) are used as support for TLC ready to use layers.
For ALUGRAM sheets a support of plain aluminium foil is coated using the same binder system as for TLC glass plates. For eluents containing high concentrations of water we recommend POLYGRAM precoated sheets.
With ALUGRAM precoated sheets problems might arise when using eluents which contain high concentrations of mineral acids or concentrated ammonia (which attack the aluminium). In such cases we recommend using our glass plates or polyester sheets.
NANOCOLOR Potassium 50 (REF 985045) has been improved. The change is introduced from LOT 45004, which is available from stock as of 20th July 2020.
The test is now produced with an integrated ammonium compensation. The modified recipe allows a simple determination of potassium in the presence of an ammonium interference up to a concentration of 200 mg/L NH4-N, which is unique in the market.
The use of the additional ammonium compensation reagent (REF 918045) is therefore no longer necessary. Additional information on this topic will be part of our upcoming water news mailing.
Please note, that the test procedure has changed.
An update of the photometers is not required.
Please find the new product information within the following link.
Note: Please save your special methods and measurement data prior to the update. More information can be found in the customer information
For old photometers (PF-11 etc.) asking for blank guidance is available here.