No. If she is 19, not a full-time student, and she earned over $4050 then you cannot claim her as a dependent. She can claimer own exemption.
IRS interview to help determine who can be claimed:
http://www.irs.gov/uac/Who-Can-I-Claim-as-a-Dependent%3F
https://ttlc.intuit.com/questions/3113432-who-can-i-claim-as-my-dependent