原題:
[藥物分析]色譜法檢查雜質(zhì)時(shí)采用的高低濃度對(duì)比法和主成分自身對(duì)照法均是

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選項(xiàng):
A.以供試溶液的稀溶液為對(duì)照
B.以雜質(zhì)標(biāo)準(zhǔn)品為對(duì)照
C.以藥物的對(duì)照品為對(duì)照
D.以高濃度和低濃度供試溶液為對(duì)照、
E.以雜質(zhì)對(duì)照品為對(duì)照
答案：
A