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二乙基二硫代氨基甲酸银分光光度法测定水中砷,当试样取最大体积50ml、用10mm比色皿时,可检测水中砷的上限浓度为()mg/L,最低检出浓度为()mg/L。
A
0.10,0.001
B
0.30,0.003
C
0.50,0.007
D
0.70,0.005
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考题
二乙基二硫代氨基甲酸银分光光度法测定水中砷,当试取最大体积50ml、用10mm比色皿时,可检测水中砷的上限浓度为()mg/L,最低检出浓度为()mg/L.A、0.10,0.001B、0.30,0.003C、0.50,0.007D、0.07,0.005
考题
单选题二乙基二硫代氨基甲酸银分光光度法测定水中砷,当试样取最大体积50ml、用10mm比色皿时,可检测水中砷的上限浓度为()mg/L,最低检出浓度为()mg/L。A
0.10,0.001B
0.30,0.003C
0.50,0.007D
0.70,0.005
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