海水中痕量硝酸盐的测定 流动分析-镉柱还原-重氮偶联-长光程分光光度法
Determination of seawater trace nitrate—Flow analysis,cadmium reduction,diazotization and spectrophotometric detection with a long path length flow cell
2022-09-26
HY/T 0347-2022
海水中痕量铵盐的测定 流动分析-邻苯二甲醛固相萃取-荧光光度法
Determination of seawater trace ammonium—Flow analysis,solid phase extraction and o-phthaldialdehyde fluorescence detection
2022-09-26
HY/T 0344-2022
海水中痕量活性磷酸盐的测定 流动分析-磷钼蓝固相萃取-分光光度法
Determination of seawater trace dissolved reactive phosphorus—Flow analysis,solid phase extraction of phosphomolybdenum blue and spectrophotometric detection