Abstract:Steel is one of the key alloy materials for ship design and construction.Its properties are affected by the chemical composition.The analysis range of existing analytical methods cannot meet the analysis requirements of composition range from some ship advanced materials.A method for the analysis of boron,zirconium,niobium and tungsten in steel for ship was established.The sample was dissolved with 9 mL HCl-3 mL HNO3-1 mL HF.B 182.528 nm,Zr 339.197 nm,Nb 316.340 nm and W 207.912 nm were selected as the analytical lines.The background was deducted by two-point correction method.Consequently the determination method of boron,zirconium,niobium and tungsten in steel for ship by inductively coupled plasma atomic emission spectrometry (ICP-AES) was established.The linear correlation coefficients of calibration curves for all elements were above 0.999.The limit of detection was lower than 0.000 5%.The proposed method was applied for the determination of two certified reference materials (middle-low alloy steel YSB C11219-94 and 12MnMoVTiNbB steel) and two steel samples for ship.The relative standard deviations (RSD,n=10) of determination results were less than 5%.The found results of certified reference materials were in good agreement with the recommended values.
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LI Lüye, DU Mifang. Determination of boron, zirconium, niobium and tungsten in steel for ship by inductively coupled plasma atomic emission spectrometry. , 2021, 41(1): 75-79.
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