含量ug
A A-A 010.050.02940.1540.133100.3570.336200.7070.68630 1.07 1.04935
1.221
1.2
Ao 0.021r 0.9998a -0.007b 0.0348
取样日期测定日期编号稀释倍数试样体积V(mL)吸光度As 吸光度A b
As-A b
1100.4080.0210.3871100.4150.0210.394已知样
1100.4160.0210.3951100.4090.0210.388
27.35 4.750.002934.452045.1570626.34 4.750.002934.452043.1389829.68 4.750.002934.452049.8126330.05 4.750.002934.452050.55193
水质 甲醛的测定 乙酰丙酮分光光
2014.3.14
2014.3.14
考核样
a b 含量（μg）氨氮含量ρN (mg/L)-0.0070.034811.32 1.13 1.07
-0.0070.034811.52 1.15 1.10-0.0070.034811.55 1.16 1.16-0.0070.034811.35 1.14
1.14
分光光度法