食品与发酵工业2017，Vol.43Issue(7)：222-226,5.DOI:10.13995/j.cnki.11-1802/ts.013612
以三苯甲烷染料酸性品红作探针检测罐头肉中的痕量Hg
Detection of trace mercury in canned meat using acid triphenylmethane dye fuchsin acid as the probe
摘要
Abstract
A new acid fuschin resonance light scattering method for the determination of toxic heavy metal element mercury in canned meat was established.The spectrum characteristics of resonance light scattering and optimum reaction conditions and the effects of coexistent substances and reaction mechanism of ternary complex were discussed.In the Tris-Hydrochloric acid buffer medium of pH 6.56,cetylpyridine bromide sensitization acid fuschin were combined with mercury(Ⅱ) to form ternary complexes,which distinctly enhanced the resonance light scattering (RLS) of the system and created a new resonance light scattering spectrum.In the vicinity of the maximum resonance light scattering peak,the absolute value of resonance light scattering enhance intensity (| △IRLS |) was directly proportion to the mass concentration of mercury(Ⅱ) in the range of 0.005 to 0.40 mg/L with quantitative limitation of 0.032 mg/kg.The method was simple and sensitive,the standard addition recovery and RSD％ (n =5) were in the ranges of 98.5％-102％ and 2.0％-2.5％ respectively.The method is suitable for the determination of mercury in canned meat.关键词
酸性品红/Hg/肉罐头/溴代十六烷基吡啶/共振光散射Key words
acid fuschin/mercury/canned meat/cetylpyridine bromide/resonance light scattering引用本文复制引用
江虹,庞向东,秦艾,谢秋霞..以三苯甲烷染料酸性品红作探针检测罐头肉中的痕量Hg[J].食品与发酵工业,2017,43(7):222-226,5.基金项目
重庆市教委科技基金资助项目(KJ1401226) （KJ1401226）
长江师范学院科技基金资助项目(2015CXX079) （2015CXX079）
