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Aims. To determine the credentials of nine candidate intermediate polars inorder to confirm whether or not they are magnetic cataclysmic variables.  Methods. Frequency analysis of RXTE and XMM data was used to search fortemporal variations which could be associated with the spin period of themagnetic white dwarf. X-ray spectral analysis was carried out to characterisethe emission and absorption properties of each target.  Results. The hard X-ray light curve of V2069 Cyg shows a pulse period of743.2 s, and its spectrum is fit by an absorbed bremsstrahlung model with aniron line, confirming this to be a genuine intermediate polar. The hard X-raylight curve of the previously confirmed intermediate polar IGR J00234+6141 isshown to be consistent with the previous low energy X-ray detection of a 563.5s pulse period. The likely polar IGR J14536-5522 shows no coherent modulationat the previously identified period of 3.1 hr, but does exhibit a clear signalat periods likely to be harmonically related to it. Whilst our RXTEobservations of RX J0153.3+7447, Swift J061223.0+701243.9, V436 Car and DD Cirare largely too faint to give any definitive results, the observation of IGRJ16167-4957 and V2487 Oph show some characteristics of intermediate polars andthese objects remain good candidates.  Conclusions. We confirmed one new hard X-ray selected intermediate polar fromour sample, V2069 Cyg.

RXTE and XMM observations of intermediate polar candidates