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Determination of total quantity of rare earths, Ca, Mg, Mn and Fe in rare-earths-magnesium by ICP-AES with offset profile add lines



Determination of total quantity of rare earths, Ca, Mg, Mn and Fe in rare-earths-magnesium by ICP-AES with offset profile add lines



Guang Pu Xue Yu Guang Pu Fen Xi 22(5): 838-839



This article introduced a method for the determination of total quantity of rare earths, Ca, Mg, Mn and Fe in rare-earths-magnesium with ICP-AES. The total quantity of rare-earths was calculated by the quantum of cerium, the measurement channel of cerium was fixed by the method of Offset Profile Add Lines, by changing the entrance slit angle, based on the fixed channels of the ICP-AES. The sample was melted with HNO3, HF, HClO4 and HCl, the difficulty of melting sample was properly settled. The method of internal standard was used in the determination, cobalt elected for the internal standard, and the same concentration cobalt liquor was added in the sample liquor. This article made the measurement parameters test, for example the quantum of pump, the height of observation, etc, and examined the liner range, accuracy, background equal concentration, detection limits and precision. The results showed that the method was simpler than chemical analytic method in operating, and could simultaneously determined many kinds of elements. It was compared with chemical method, the results were satisfactory.

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Accession: 048755191

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PMID: 12938444


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