Pickett J A, Moors A H, Latimer R D, Mahmood N, Ghosh S, Oduro A
Department of Anaesthesia, Papworth Hospital, Cambridge.
Br J Anaesth. 1994 Jun;72(6):683-5. doi: 10.1093/bja/72.6.683.
We have studied the ability of three commercially available preparations of soda lime to act as nitrogen dioxide scavengers during administration of inhaled nitric oxide. Soda lime, with a green to brown colour change (indicator = potassium permanganate), markedly reduced concentrations of nitrogen dioxide, but also markedly reduced inhaled concentrations of nitric oxide. The other varieties of soda lime, with colour changes from pink to white (indicator = kenazol yellow) or white to violet (indicator = ethyl violet), produced little effect on concentrations of nitrogen dioxide. None of the above soda limes can be recommended for use as a nitrogen dioxide scavenger during administration of inhaled nitric oxide.
我们研究了三种市售苏打石灰制剂在吸入一氧化氮给药期间作为二氧化氮清除剂的能力。带有从绿色到棕色颜色变化（指示剂 = 高锰酸钾）的苏打石灰显著降低了二氧化氮浓度，但也显著降低了一氧化氮的吸入浓度。其他种类的苏打石灰，带有从粉红色到白色的颜色变化（指示剂 = 肯那唑黄）或从白色到紫色的颜色变化（指示剂 = 乙基紫），对二氧化氮浓度几乎没有影响。上述任何一种苏打石灰都不推荐在吸入一氧化氮给药期间用作二氧化氮清除剂。
