Chemiluminescence method for the determination of nanogram amounts of highly toxic alkylphosphates

The method is based on the Schoenemann reaction with sodium perborate and then with luminol. The reaction medium contains EDTA and is 5 M in sodium chloride, thus improving the detection limit 1000 times to ca. 1 ng for the highly toxic alkylphosphates. ""Non-toxic"" alkylphosphates are indifferent.