论文部分内容阅读
在酸性条件下 ,高锰酸钾氧化甲醛产生很强的化学发光。当该体系中有碘离子存在时 ,化学发光强度受到一定的抑制 ,据此 ,建立了新的碘离子的化学发光分析方法。该方法对碘离子检出限为 7.87× 1 0 - 7mol/L,线性范围为 2 .44× 1 0 - 6～ 7.87× 1 0 - 3mol/L,用于食品中碘含量的测定 ,结果满意
Under acidic conditions, potassium permanganate oxidizes formaldehyde to produce strong chemiluminescence. When iodine ions exist in the system, the chemiluminescence intensity is inhibited to a certain extent. Therefore, a new chemiluminescence method for iodide ion has been established. The detection limit of iodine ion was 7.87 × 10-7mol / L and the linear range was 2.44 × 10-6 ~ 7.87 × 10-3 mol / L, which was used for the determination of iodine in food with satisfactory results