CAJ | 학술논문

在Walpole缓冲介质和十二烷基苯磺酸钠(SDBS)溶液中,Ag(Ⅰ)与乙二醇-双-(2-氨基乙基醚)四乙酸(EGTA)可形成较稳定的无色螯合物微粒,使得体系的共振散射信号增强.该螯合物微粒在313 nm处产生1个较强共振散射峰.研究表明,在最佳实验条件下,Ag(Ⅰ)浓度在5.4×10-3～2.7 μg/mL范围内与共振散射强度△I呈较好的线性关系,检出限为0.17 ng/mL.该方法用于废胶片中痕量银的测定,结果较满意.
재Walpole완충개질화십이완기분광산납(SDBS)용액중,Ag(Ⅰ)여을이순-쌍-(2-안기을기미)사을산(EGTA)가형성교은정적무색오합물미립,사득체계적공진산사신호증강.해오합물미립재313 nm처산생1개교강공진산사봉.연구표명,재최가실험조건하,Ag(Ⅰ)농도재5.4×10-3～2.7 μg/mL범위내여공진산사강도△I정교호적선성관계,검출한위0.17 ng/mL.해방법용우폐효편중흔량은적측정,결과교만의.
In walpole buffer solution with sodium dodecyl benzene sulfurate (SDBS), Ag(Ⅰ) and ethylene glycol-bis(2-aminoethyl ether)-N,N,N′,N′-tetraacetic acid (EGTA) formed stable colorless chelate complex particles, which made the resonance scattering(RS) signal of the system enhance and exhibited a strong resonance scattering peak at 313 nm. Under the optimum experimental conditions, there was a good linearity between the RS intensity (△I) and Ag(Ⅰ) concentration in the range of 5.4×10-3～2.7 μg/mL and the limit of detection was 0.17 ng/mL. This method was applied to the determination of the trace silver in waste film with the satisfactory results.