ISONICS CORP
EXHIBIT 10.4
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<BR></FONT><FONT SIZE=2><B>Exhibit 10.4    <BR>    </B></FONT></P>

<P ALIGN="RIGHT"><FONT SIZE=2><B>EXHIBIT F  </B></FONT></P>

<P><FONT SIZE=2>TO:
The Purchasers of Isonics Corporation, 8% Convertible Debentures and Warrants </FONT></P>

<P><FONT SIZE=2>Gentlemen:
</FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This
letter will confirm my agreement to vote all shares of Isonics Corporation, a California corporation (the "</FONT><FONT SIZE=2><I>Company</I></FONT><FONT SIZE=2>") voting stock
over which I have voting control in favor of any resolution presented to the shareholders of the Company to approve the issuance, in the aggregate, more than 19.999% of the number of shares of common
stock of the Company outstanding on the date of closing of the pursuant to that certain Securities Purchase Agreement, dated January&nbsp;10, 2005, among the Company and the purchasers signatory
thereto (the "</FONT><FONT SIZE=2><I>Purchase Agreement</I></FONT><FONT SIZE=2>") and the other agreements entered into in connection therewith or as otherwise may be required by the applicable rules
and regulations of the Nasdaq Smallcap Market (or any successor entity). This agreement is given in consideration of, and as a condition to enter into such Securities Purchase Agreement and is not
revocable by me. </FONT></P>

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<TD WIDTH="37%"><FONT SIZE=2>Percentage Beneficial Ownership:</FONT></TD>
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