Determination of anion and cation in leaching solution of imported smelting slag by reagent free ion chromatography
CHEN Yongxin 1, ZENG Xueling 2, LI Xiangrong 1, LU Zee 1, MA Lifang 1
1 Fangchenggang EntryExit Inspection and Quarantine Bureau, Fangchenggang 538001，China; 2 Dionex China Research and Application Center Hangzhou Lab,Hangzhou 310028,China
Abstract：Abstract: The anion and cation (F-, Cl-, NO2-, Br-, NO3-, SO42-, PO43-, Li+, Na+, NH4+, K+, Mg2+ and Ca2+) in leaching solution of smelting slag were determined by reagent free ion chromatography. The separation conditions of anion: cation exchange column Ion Pac AS19, gradient elution with potassium hydroxide solution, suppressed conductance detection, flow rate of 1 mL/min; separation conditions of cation: anion exchange column Ion Pac CS16, gradient elution with methanesulfonic acid solution, suppressed conductance detection, flow rate of 1.3 mL/min. The relative standard deviations (RSDs) of retention time, peak height and peak area of testing ions within one day were less than 0.35 %, 1.8 % and 1.1 %, respectively. The RSDs of retention time, peak height and peak area of testing ions in continuous five days were less than 0.78 %, 2.4 % and 1.6 %, respectively. The concentration of determined ions with its peak area had good linearity (r=0.999 0-0.999 9). The detection limit was lower than 20 μg/L. The anion and cation in leaching solution of imported scale slag, vanadium slag and manganeserich slag were determined with recoveries of standard addition in the range 86 %-110 %.
陈永欣， 曾雪灵，黎香荣，吕泽娥，马丽方. 免试剂离子色谱法测定入境冶炼渣浸出液中阴阳离子[J]. 冶金分析, 2012, 32(02): 32-37.
CHEN Yongxin, ZENG Xueling, LI Xiangrong, LU Zee, MA Lifang. Determination of anion and cation in leaching solution of imported smelting slag by reagent free ion chromatography. , 2012, 32(02): 32-37.
