Determination of aluminum, phosphorus, magnesium, iron, zinc and nickel in manganese ore by inductively coupled plasma atomic emission spectrometry with hydrofluoric acid resistant sampling system after microwave digestion
DENG Quan dao,XU Guang,LIN Guan chun,et al.
Qinzhou Entry Exit Inspection and Quarantine Bureau of the People′s Republic of China
Abstract：The samples were dissolved by microwave digestion using mixed acid as solvent. After dilution, the aluminum, phosphorus, magnesium, iron, zinc and nickel in manganese ore were determined by inductively coupled plasma atomic emission spectrometry (ICP AES) using hydrofluoric acid resistant sampling system (Duo HF KIT). The matrix effect of boric acid introduced for masking fluorine ion was prevented , and the detection time was shortened. The spectral lines for Al, P, Mg, Fe, Zn and Ni were 369.152 nm{85}, 186.942 nm{481}, 280.270 nm{120}, 240.488 nm {140}, 213.856 nm {457} and 341.476 nm {99}, respectively. The matrix effect of manganese was eliminated by matrix matching method. The proposed method had been applied to the determination of aluminum, phosphorus, magnesium, iron, zinc and nickel in certified reference materials of manganese ore. The determination results were compared with those obtained by national standard method. It was found that the analytical results were consistent with the certified values and those obtained by national standard method. Moreover, the repeatability was good. The recoveries of elements were 94% 107%, and the relative standard deviations (RSD, n=12) were smaller than 1.1 %.
邓全道;许光;林冠春;刘建发;刘灵芝. 微波消解-耐氢氟酸系统进样电感耦合等离子体发射光谱法测定锰矿中铝磷镁铁锌镍[J]. 冶金分析, 2011, 31(1): 35-39.
DENG Quan dao;XU Guang;LIN Guan chun;et al.. Determination of aluminum, phosphorus, magnesium, iron, zinc and nickel in manganese ore by inductively coupled plasma atomic emission spectrometry with hydrofluoric acid resistant sampling system after microwave digestion. , 2011, 31(1): 35-39.
