The most favorable operating conditions decided through the orthogonal experiment are as follows. Pour 0 6 mL of perchloric acid(3%),1 30 mL of acetylation reagent into the test solution and keep it for 15 min,then add 4 mL of pyridine solution.

 
  • 并通過(guò)正交實(shí)驗確定了最佳測定條件 :在試液中加質(zhì)量分數為 3%25的高氯酸 0 6mL ,乙?;噭?1 30mL ,?;?5min ,加吡啶水溶液 4mL。
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