加熱分解法と金-石英ウールコレクターを用いる空気中水銀の乾式捕集法

概要

論文の詳細を見る
Dry collecting method for mercury in ambient air by gold-amalgamation process was studied and gold-quartz wool collector was newly designed. The collector consists of a quartz tube of 4 mm in inner diameter, 6 mm in outer diameter, and 150 mm in length, in which the collecting agent made of gold wire and quartz wool are placed. The most effective collection was made with 300-1000 mg, of gold wire. For example, the use of a mixture of 500 mg of gold wire of 25 μm diameter and 50 mg of quartz wool with absorptive flow rate of 2 l/min showed collecting capability in the range of 4.5-18 μg of mercury. The collection of mercury could be carried out by one collector 20 times under above conditions without any loss of mercury. The absorbed mercury sample was stable for 1 week at room temperature. Interference of mercury collection by the fume of vegetable oil, exhaust gas of automobiles, and active gases such as SO_2 and Cl_2,was also examined, and the interference was excluded by the attachment of combustion furnace and NaOH filter to the collector.
公益社団法人日本薬学会の論文
1977-08-31