采用直流等离子体原子发射光谱法同时测定犬尿液中多种选定元素。

Simultaneous multi-element determination of selected elements in dog urine by direct current plasma-atomic emission spectrometry.

作者信息

Petersson L R, Frank A, Hoppe A

机构信息

Department of Chemistry, National Veterinary Institute, Uppsala, Sweden.

出版信息

J Trace Elem Electrolytes Health Dis. 1993 Sep;7(3):177-83.

PMID:8155991

Abstract

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.

摘要

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。