EXHIBIT 31.2

CERTIFICATION PURSUANT TO RULES 13A-14(A) AND 15D-14(A) UNDER THE SECURITIES
EXCHANGE ACT OF 1934 AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY
ACT OF 2002

I, Carrie Carlander, certify that:

1. I have reviewed this quarterly report on Form 10-Q of ADVENTRX
Pharmaceuticals, Inc. (the "Company");

2. Based on my knowledge, this report does not contain any untrue statement of a
material fact or omit to state a material fact necessary to make the statements
made, in light of the circumstances under which such statements were made, not
misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial
information included in this report, fairly present in all material respects the
financial condition, results of operations and cash flows of the Company as of,
and for, the periods presented in this report;

4. The Company's other certifying officer and I are responsible for establishing
and maintaining disclosure controls and procedures (as defined in Exchange Act
Rules 13a-15(e) and 15d-15(e)) and have:

     a. Designed such disclosure controls and procedures, or caused such
     disclosure controls and procedures to be designed under our supervision, to
     ensure that material information relating to the Company, including its
     consolidated subsidiaries, is made known to us by others within those
     entities, particularly during the period in which this report is being
     prepared;

     b. Evaluated the effectiveness of the Company's disclosure controls and
     procedures and presented in this report our conclusions about the
     effectiveness of the disclosure controls and procedures, as of the end of
     the period covered by this report based on such evaluation; and

     c. Disclosed in this report any change in the Company's internal control
     over financial reporting that occurred during the Company's most recent
     fiscal quarter (the Company's fourth fiscal quarter in the case of an
     annual report) that has materially affected, or is reasonably likely to
     materially affect, the Company's internal control over financial reporting;
     and

5. The Company's other certifying officer and I have disclosed, based on our
most recent evaluation of internal control over financial reporting, to the
Company's auditors and the audit committee of the Company's board of directors
(or persons performing the equivalent functions):

     a. All significant deficiencies and material weaknesses in the design or
     operation of internal controls over financial reporting which are
     reasonably likely to adversely affect the Company's ability to record,
     process, summarize and report financial information; and

     b. Any fraud, whether or not material, that involves management or other
     employees who have a significant role in the Company's internal control
     over financial reporting.

Date: August 12, 2005

                                       /s/ CARRIE CARLANDER
                                       --------------------
                                       Carrie Carlander
                                       Chief Financial Officer, Treasurer and
                                       Vice President, Finance