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【单选题】
某一浓度为7.00ug/ml的标准Fe 3+ 溶液,经显色之后用紫外可见分光光度法测定,其吸光度为0.610,而样品溶液在相同条件下测得吸光度为0.580,则样品溶液中Fe 3+ 的含量为A.
5.89 ug/ml
B.
6.66 ug/ml
C.
6.50 ug/ml
D.
5.98 ug/ml
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举一反三
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B.
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D.
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for taking
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