Non-purgeable organic carbon到底是什么意思啊啊啊? 回复 1# sheyfox total organic carbon (toc) – material derived from decaying vegetation, bacterial growth, and metabolic activities of living organisms or chemicals. non-purgeable organic carbon (npoc) – commonly referred to as toc; organic carbon remaining in an acidified sample after purging the sample with gas http:///wiki/total_organic_carbon 查看更多