were also inconclusive concerning the samples taken from the explosion sites. Nitroglycerine was detected in one of these samples, and the presence of dinitrotoluene (DNT) was also detected. This has led to claims that the explosive used could have been Titadine. However, also detected in the same sample was dibutyl phthalate (DBP), which is a component of Goma 2 ECO but not of titadine. Several other samples from the explosion sites also revealed the joint presence of DNT and DBP. Tests were carried out on a sample of Titadine. In addition the presence of nitroglycerine and DNT was also detected in samples of Goma 2 ECO that had been recovered from sites associated with the bombings.