聞克勒(Winkler)氏測氧法,向被認为是測定水中溶氧最簡单而精确的方法之一。但此法是一常量容量法,对于野外工作来說,携带相当多的試剂及器皿,頗感不便。哈潘(Harper)氏曾将此法加以修改,应用微量滴定管,并减少試剂用量使成一半微量法,但仍不够簡便。本文将哈氏法再加修改,簡化所用器皿,用滴瓶代替滴定管,以水样管代替水样瓶,并将水样瓶与滴定时所用器皿合而为一,使成为一便于携带的半微量快速測氧法。 Winkler’s oxygen measurement is one of the simplest and more accurate methods that is considered to be the determination of dissolved oxygen in water. But this method is a constant volume method, for the field work, carrying a considerable amount of reagents and vessels quite inconvenient. Harper (Harper) has this method be modified, the use of microtitre tubes, and reduce the amount of reagents to make half of the trace method, but still not easy enough. In this paper, the Haste’s method is further modified to simplify the vessel used, to replace the burette with a drop bottle, to replace the water bottle with a water sample tube, and to combine the water sample bottle with the container for titration to make it a portable half Trace rapid oxygen method.