磺基水杨酸法测定铁时,水样中铁离子含量为0.1~2.4mg/L,平行测定两个结果间的差数()
磺基水杨酸法测定铁时,水样中铁离子含量为0.1~2.4mg/L,平行测定两个结果间的差数()
A.≤0.02~0.04mg/L
B.≤0.05~0.06mg/L
C.≤0.04~0.06mg/L
D.≤0.04~0.05mg/L
正确答案:C
磺基水杨酸法测定铁时,水样中铁离子含量为0.1~2.4mg/L,平行测定两个结果间的差数()
A.≤0.02~0.04mg/L
B.≤0.05~0.06mg/L
C.≤0.04~0.06mg/L
D.≤0.04~0.05mg/L
正确答案:C
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