Roger Johnson and summer signing Gabor Gyepes have formed a promising central defensive partnership, leaving Purse without a place in the side and Jones looking for other players.
Jones confirmed: "We have had enquiries about Darren Purse.
"But Darren knows that situation and Darren is happy with that situation.
"He is still fighting for a contract here which is fine. He knows I am looking around for other players, he has been informed of that."
Purse was one of Jones' first signings as Bluebirds boss in 2005 as he joined from West Bromwich Albion in a deal worth an estimated £1m.
He was instantly appointed team captain and earned a new two-year deal in 2007.
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