Context :

Aims : To determine the credentials of nine candidate intermediate polars in order to confirm whether or not they are magnetic cataclysmic variables .

Methods : Frequency analysis of RXTE and XMM data was used to search for temporal variations which could be associated with the spin period of the magnetic white dwarf .
X-ray spectral analysis was carried out to characterise the emission and absorption properties of each target .

Results : The hard X-ray light curve of V2069 Cyg shows a pulse period of 743.2 s , and its spectrum is fit by an absorbed bremsstrahlung model with an iron line , confirming this to be a genuine intermediate polar .
The hard X-ray light curve of the previously confirmed intermediate polar IGR J00234+6141 is shown to be consistent with the previous low energy X-ray detection of a 563.5 s pulse period .
The likely polar IGR J14536–5522 shows no coherent modulation at the previously identified period of 3.1 hr , but does exhibit a clear signal at periods likely to be harmonically related to it .
Whilst our RXTE observations of RX J0153.3+7447 , Swift J061223.0+701243.9 , V436 Car and DD Cir are largely too faint to give any definitive results , the observation of IGR J16167–4957 and V2487 Oph show some characteristics of intermediate polars and these objects remain good candidates .

Conclusions : We confirmed one new hard X-ray selected intermediate polar from our sample , V2069 Cyg .