Abstract：A new reagent 1,3-di-［(4-nitrobenzenediazoa)］benzenetriazene (DNBDBT) was synthesized, and its colour reaction with HgⅡ was studied in the presence of Triton X-100.The results showed that HgⅡ reacts with DNBDBT to form a stable red complex in a medium of Na2B4O7-NaOH buffer solution at pH 10.0.The apparent molar absorptivity was 1.15×105 L·mol-1·cm-1 at the maximum absorption of 564 nm. Beers law was obeyed in the concentration range of 0-0.6 μg/mL for HgⅡ.It has been applied to the direct determination of HgⅡ in waste water with RSD of 1.3%-2.0% and recovery of 98%-103%.
王贵芳*;王晓瑾. 1,3-二［（4-硝基苯基重氮基）］苯基三氮烯的合成及其与汞Ⅱ的显色反应[J]. 冶金分析, 2011, 31(4): 48-52.
WANG Gui-fang;WANG Xiao-jin. Synthesis of 1,3-di-［(4-nitrobenzenediazoa)］benzenetriazene and its colour reaction with mercuryⅡ. , 2011, 31(4): 48-52.
