Grafton trainer Daniel Want has been disqualified for 15 months after being found guilty of a cobalt offence.

A post-race sample taken from the Want-trained I Too Can Dance after he won a maiden at Grafton in February was found to contain a higher than allowable concentration of cobalt.

Want will be out until August 15 next year.

Two Victorian trainers, Len Xuereb and Stefan Jokic have been charged with cobalt offences dating from samples taken in 2015.

Xuereb faces eight charges relating to Elegantly Wasted who returned a reading above the then-threshold of 200 micrograms per litre of urine following her win at Sale in July, 2015.

The trainer was also charged with having four non-registered substances in the fridge at his stable and with failing to record treatments.

Jokic is facing four charges in relation to Jack Attack returning a cobalt reading above the threshold following his win at Hamilton in September, 2015 and has also been charged with failing to keep proper records.