Abstract：The accurate and rapid determination of impurity elements in organic amines was of great significance for improving the desulfurization performance of organic amines. In the experiments, 1.00 mL of sample was dissolved with nitric acid-hydrogen peroxide at 300-350 ℃. Al 237.312 nm, Ca 396.847 nm, Fe 259.940 nm, Mg 280.270 nm, Mn 257.610 nm, Pb 220.353 nm and Zn 213.856 nm were selected as the analytical lines. The contents of aluminum, calcium, iron, magnesium, manganese, lead and zinc were determined by inductively coupled plasma atomic emission spectrometry (ICP-AES). The method for determination of aluminum, calcium, iron, magnesium, manganese, lead and zinc in organic amines by ICP-AES was established. The mass concentration of elements in range of 0.10-10.00 μg/mL showed a linear relationship to the corresponding emission intensity, and the correlation coefficients were all higher than 0.999 9. The limits of detection of aluminum, calcium, iron, magnesium, manganese, lead and zinc in this method were between 0.000 5-0.007 2 μg/mL, and the limits of quantification were 0.001 7-0.024 1 μg/mL. The proposed method was applied for the determination of aluminum, calcium, iron, magnesium, manganese, lead and zinc in two organic amine samples, and the relative standard deviations (RSD, n＝11) of the determination results were between 1.3% and 5.6%. The found results were basically consistent with those obtained by inductively coupled plasma mass spectrometry (ICP-MS). The recovery tests of organic amine samples were conducted according to the experimental method, and the spiked recoveries were between 97.0% and 103.4%.
都业俭, 姜玉娟, 唐新, 邸静, 曹枝, 王秉华. 电感耦合等离子体原子发射光谱法测定有机胺中铝钙铁镁锰铅锌[J]. 冶金分析, 2024, 44(2): 87-91.
DU Yejian, JIANG Yujuan, TANG Xin, DI Jing, CAO Zhi, WANG Binghua. Determination of aluminum,calcium,iron,magnesium,manganese, lead and zinc in organic amines by inductively coupled plasma atomic emission spectrometry. , 2024, 44(2): 87-91.
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