Synthesis and characterization of hydrazono-disulfonic acid 1, a novel and highly sensitive color reagent for determination of vanadium

ORGN 565

Qi-Li Feng, fengqili@yahoo.com.cn, The Key Laboratory of Food Science of MOE, Nanchang University, Nanchang, 330047, China and Da-Qun Liu, Zhejiang Institute of Research in Vegetables, Hanzhou, China.
During our studies on assay of vanadium in various natural and agricultural products, a simple and highly sensitive spectrophotometric method has been developed at detection limit of 0.2 ng/mL. The method is based on catalytic oxidation of 1,8-dihydroxy nathalene-3,6-disulfonic acid and phenyl hydrazine with potassium chlorate. Now, the color reagent 1, the essential key for success of the analytical method, has been identified and synthesis. The details of the synthesis and regio-selectivity for the hydrazone formation will be disclosed.

 

Physical Organic Chemistry, Metal-Mediated Reactions, Asymmetric Reactions and Syntheses
8:00 PM-10:00 PM, Tuesday, August 21, 2007 BCEC -- Exhibit Hall - B2, Poster

Division of Organic Chemistry

The 234th ACS National Meeting, Boston, MA, August 19-23, 2007