本书是《原子光谱分析技术丛书》中的一本。 全书共分8章，结合原子光谱分析的特点，对各种常用的溶样方法如湿式、干式消解以及有关新技术如微波、超声的应用作了介绍，并讨论了溶样的机理：对不同类型的样品如无机和有机化工制品、岩矿和油晶、环境物质和生物物质的处理分别作了阐述；对不同形态分析要求的样品处理作了专门探讨；还论述了与样品处理有关的前处理（分离、富集）、玷污与损失等问题。本书全面反映了外有关新成就、新技术，也包括了作者的一些相关研究成果，尤其对溶样机理和形态分析等新内容进行了较深入讨论。 由于样品处理对分析化学测试有普遍意义，因此，本书可作为从事分析测试的专业人员和科研人员的专业参考书，也可作为大专院校分析专业师生的教学参考书，还可作为一般分析人员进修提高的自学参考书。

Since the study of normed spaces for their own sake evolved rather than arose fully formed, there is some room to disagree about who founded the field. Albert Bent came close to giving the definition of a normed space in a 1916 paper [23] on an extension of Newton's method for finding roots, and in 1918 Frederic Riesz [195] based a generalization of the Fredholm theory of integral equations on the defining axioms of a plete normed space, though he did not use these axioms to study the general theory of such spaces. According to Jean Dieudonne [64], Riesz had at this time considered developing a general theory of plete normed spaces, but never published anything in this direction. In a paper that appeared in 1921, Eduard Helly [102] proved what is now called Helly's theorem for bounded linear functionals. Along the way, he developed some of the general theory of normed spaces, but only in the context of norms on subspaces of the vector space of all sequences of plex scalars.