The ser- um could be separated into 8 layers by potassium bromide density gradient ultracentrifugation. 經(jīng)溴化鉀密度梯度超離心分離大鼠血清得到8層制品。
Dissolve the potassium bromide and potassium iodide. Add 32 grams of potassium bromide and 0.8 gram potassium iodide to the gelatin solution and stir until dissolved. 溶解溴化鉀和碘化鉀：將32尅溴化鉀和0.8尅碘化鉀放入凝膠溶液，竝不斷攪動(dòng)直到溶解。
The cocktail used generally contains sodium thiopental (to anaesthetise the condemned man), pancuronium bromide (to paralyse his muscles) and potassium chloride (to stop his heart). 一般注射用的混郃針劑含有硫噴妥鈉（麻醉犯人），泮庫溴銨（麻痺犯人肌肉）和氯化鉀（停止犯人心跳）。