CAJ | 학술논문

本文报道碘(I-)对重铬酸钾氧化罗丹明B(RHB)褪色反应的负催化作用及其动力学分析，建立了测定微量碘的新方法，检出限2×10-8 g/mL，线性范围0～16μg/mL，表观摩尔吸光系数6.7×104L·mol-1·cm。方法用于海带、食盐等食品中微量碘的测定，结果满意。
본문보도전(I-)대중락산갑양화라단명B(RHB)퇴색반응적부최화작용급기동역학분석，건립료측정미량전적신방법，검출한2×10-8 g/mL，선성범위0～16μg/mL，표관마이흡광계수6.7×104L·mol-1·cm。방법용우해대、식염등식품중미량전적측정，결과만의。
A new method for the determination of micro iodine ion has been described, which is based on the minus catalytic effect of iodine on the oxidation of Rhodamine B by K2Cr2O7. The molar absorption coefficient is 6.7×104 L·mol-1·cm-1. The linear range of iodine is 0～1.6μg·mL-1. The method has been used in the determination of micro iodine in food with satisfactory results.