全部
≥99.0% 总氮含量≤0.0005%,
≥99%
20g/L, 介质: H2O
30g/L, 介质: H2O
40g/L, 介质: NaOH, 适用于
46g/L, 介质: H2O
4g/L, 介质: H2O
50g/L, 介质: H2O
5mM
97%
99.0% min
99.5%
99.9%
99.99% trace metals basis
99%
ACS, ≥99%(RT)
PrimorTrace?, ≥99.99% metals basis
puriss. p.a., ACS reagent, ≥99.0% (RT)
优级试剂, ≥99.5%
优级试剂, 适用于分析, ACS, 欧洲药典, <= 0.001% N
总氮N≤0.0005%,适用于HJ636-2012
环保级,99.5%
适用于分析, 优级品