7.進行atomic absorption spectrophotometry分析時,使用下列何種氣體組合可以使火焰溫度達到3,000℃?
(A)acetylene-compressed air (B)acetylene-nitrous oxide (C)natural gas-compressed air (D)nitrous oxide-compressed air
33.以毛細管電泳分析法分析中性類固醇混合物時,下列何種分離條件最適合?
(A)5 mM pH 8.0磷酸緩衝溶液 (B)5 mM pH 7.5磷酸緩衝溶液,內含0.05 mM sodium dodecyl sulphate (C)5 mM pH 8.0硼酸緩衝溶液,內含0.01 mM β-cyclodextrin (D)5 mM pH 7.5硼酸緩衝溶液,內含10%甲醇