Our lab is interested in developing an analytical method for Cr+6 in various
types of samples, especially for rubber, PVC, polyethylene, paint, dye and
During sample preparation, haxacovalent chromium has to be extracted from
the sample without changing oxidation state. One of the standard method
would be an alkaline extraction for environmental samples such as water,
wastewater, and dust because of adsorbed and soluble forms of chromium
As mentioned above, we are interested in developing analytical method for
Cr+6 in general. I'd like to get all kinds of informations about Cr+6
analysis in solid sample whether it is successful or not.
Gae Ho Lee, Professor
Department of Chemistry
Dae Jeon, 305-764
>From: Gaeho Lee <[log in to unmask]>
>Reply-To: "PLASMACHEM-L: Analytical Chem.(ICP's, DCP's, MIP's)."
> <[log in to unmask]>
>To: [log in to unmask]
>Subject: Cr+6 Analysis
>Date: Wed, 9 Apr 2003 12:50:07 +0900
>Thank you for the reply. However, we are still looking for the analytical
>method for Cr+6 analysis in polymer such as plastic.
>All of analytical method described here are mainly for environmental
>such as water, dust, soil and waste water. In this case, Cr+6 is extracted
>from adsorbed and soluble forms of chromium compound by alkaline
>In order to analyze Cr+6 in plastic, plastic sample has to be crushed and
>grinded. As a result, the extraction efficiency by alkaline extraction
>would be dependent upon size and shape of sample.
>Is there any standard method for Cr+6 analysis in plastic ?
>Gae H. Lee
>Department of Chemistry
>Dae Jeon, 305-764
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