有几句看不懂。? 用菲绕林法测定痕量铁 第一句:appropriate sample preparation has rendered the iron and sample matrix soluble in water or other suitable solvent,这里的matrix何解?sample matrix 样品即可。 第二句: aldehydes, ketones, and oxidizing agents interfere by consuming the hydroxylamine hydrochloride added as a reducing agent. 这里的oxidizing agents何解?氧化剂 另外,这标准有中文版的吗?有无英文版 可以自己先网上查询一下!查看更多