Dissolved and total dissolvable manganese concentrations at station TT045_21-19

Current values have been verified by comparison to the NASS-4 SRM and by DDDC/APDC extraction with GFAAS analysis.当前数值已通过两种途径完成验证：一是与NASS-4号标准参考物质（NASS-4 SRM）进行比对；二是采用二乙基二硫代氨基甲酸二乙铵（Diethyldithiocarbamate, DDDC）与吡咯烷二硫代甲酸铵（Ammonium Pyrrolidinedithiocarbamate, APDC）的混合萃取体系进行样品前处理后，结合石墨炉原子吸收光谱法（Graphite Furnace Atomic Absorption Spectrometry, GFAAS）开展分析的流程完成验证。