尿液中微量元素分析的储存及中子活化分析前处理
Storage and Pre-Neutron Activation Analysis Treatment for Trace Element Analysis in Urine.
作者信息
Blotcky Alan J, Rack Edward P
机构信息
Veterans Administration Medical Center, Omaha, NE 68105.
University of Nebraska-Lincoln, NE 68588.
出版信息
J Res Natl Bur Stand (1977). 1986 Mar-Apr;91(2):93-102. doi: 10.6028/jres.091.015.
The problems regarding storage and pre-neutron activation analysis treatment for the elements aluminum, calcium, vanadium, selenium, copper, iodine, zinc, manganese, and magnesium in a urine matrix are reviewed. The type of collection and storage procedure and pre-neutron activation analysis treatment of mine depend on the specific trace element; that is, its inherent physical and chemical properties. Specifically polyethylene in teflon containers are the most suitable for general determinations. Whether any preservative is added would depend upon the stability of the trace element and its tendency for surface adsorption. Preferably preservatives should contain no radioactivatable elements for maximum efficacy. Freeze drying or packing urine shipments under dry ice needs to be explored on an individual basis. Each pre- or post-neutron activation analysis treatment is specific and optimized for the trace element analyzed.
本文综述了尿液基质中铝、钙、钒、硒、铜、碘、锌、锰和镁等元素的储存及中子活化分析前处理相关问题。收集和储存程序的类型以及矿样的中子活化分析前处理取决于特定的微量元素，即其固有的物理和化学性质。具体而言，聚四氟乙烯容器中的聚乙烯最适合进行常规测定。是否添加任何防腐剂将取决于微量元素的稳定性及其表面吸附倾向。为了达到最大功效，防腐剂最好不含可活化放射性的元素。需要针对每种情况探索冷冻干燥或在干冰下包装尿液样本进行运输的方法。每种中子活化分析前或后的处理对于所分析的微量元素都是特定且经过优化的。
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