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New member
i will buy it by a chemical "importer" ( i don´t know if this word is correct ). They send me a catalog whith 3 diferents h2o concentrations. If i could buy the fluka dnp i wold not have this doubt, but i cant buy it. i just can bui the merck dnp. And they have 3 diferents water concentrention. i know how to manipulate this, i havel all he equipament...i just need to know what is the correct to buy. i think is the last one - *Pract., moistend with water ( H2O 20% ) 97% ( HPLC )