Petersson L R, Frank A, Hoppe A
Department of Chemistry, National Veterinary Institute, Uppsala, Sweden.
J Trace Elem Electrolytes Health Dis. 1993 Sep;7(3):177-83.
Urine samples from dogs were analyzed for 15 important elements (Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, P, Pb, V, and Zn) by using wet-ashing and simultaneous DCP atomic emission spectrometry. As K, Na and P influence the spectral emission of elements to be determined, matrix-matching was applied to ensure accurate metal determinations. The method was checked by analyzing standard reference materials of urine. The values found were generally in agreement (accuracy within 100 +/- 10%) with the certified values. Short- and long-term stabilities of the instrument for the elements determined ranged from 0.4 to 2.2% and from 1.2 to 6.9%, respectively. Simultaneous multi-element determination gives increased information on trace- and minor elements in urine. In the present study DCP atomic emission spectrometry is successfully applied for this purpose.
采用湿灰化法和同时型直流等离子体原子发射光谱法，对犬类尿液样本中的15种重要元素（钙、镉、钴、铬、铜、铁、钾、镁、锰、钠、镍、磷、铅、钒和锌）进行了分析。由于钾、钠和磷会影响待测元素的光谱发射，因此采用基体匹配法以确保准确测定金属含量。通过分析尿液标准参考物质对该方法进行了检验。所测得的值与认证值总体相符（准确度在100±10%以内）。所测元素的仪器短期和长期稳定性分别为0.4%至2.2%和1.2%至6.9%。同时进行多元素测定可增加尿液中微量元素和痕量元素的信息。在本研究中，直流等离子体原子发射光谱法成功用于此目的。
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