目的建立用電感耦合等離子體發(fā)射光譜法（ICP-OES）測定右旋糖酐鐵中鉛、鎘、砷、汞、鈷、釩、硒、鉬8種重金屬元素的分析方法。方法通過檢測波長考察,儀器參數(shù)優(yōu)化,校正光譜干擾,驗證電離干擾并考察抑制方法,測定8種重金屬元素的量。結(jié)果抑制電離干擾,待測元素回收率提高5%~10%,方法準(zhǔn)確度良好,加樣回收率在95.7%~101.1%,方法精密度良好（RSD<3.6%,n=6）。各待測元素線性關(guān)系良好,相關(guān)系數(shù)均大于0.999,檢出限為0.15~8.09 ng/mL,定量限為0.46~24.26 ng/mL。結(jié)論方法準(zhǔn)確度高、靈敏度高、迅速可靠,可用于右旋糖酐鐵中8種重金屬元素的測定。

Objective To establish a method for the determination of eight heavy metal elements of Pb, Cd, As, Hg, Co, V, Se, Mo in iron dextran by inductively coupled plasma optical emission spectrometry (ICP-OES). Method Through selection of detection wavelengths, optimization of instrument parameters, correction of spectral interference, verification of ionization interference and investigation of suppression methods, the eight heavy metal elements were analyzed by ICP-OES. Results The recovery rate of the detected elements increased 5% to 10% by suppression of ionization interference. The accuracy of the method was good. The spiked recovery rates of the detected elements were from 95.7% to 101.1%. The precision of the method were good (RSD < 3.6%, n=6). The linearities of the detected elements were good, and the correlation coefficients were all greater than 0.999. The detection limits were from 0.15 to 8.09 ng/mL. The quantization limits were from 0.46 to 24.26 ng/mL. Conclusion The method was accurate, sensitivity, rapid and reliable, which can be applied to the determination of contents of eight heavy metal elements in iron dextran.