Example: tourism industry
Preconcentration
Found 2 free book(s)
METHOD 200.7 DETERMINATION OF METALS AND TRACE …
www.epa.govpreconcentration of the sample may be required prior to analysis in order to meet drinking water acceptance performance criteria (Sections 11.2.2 through 11.2.7). 1.5 For the determination of total recoverable analytes in aqueous and solid samples a digestion/extraction is required prior to analysis when the elements
固定污染源废气 甲硫醇等8种含硫 有机化合物的测定 气袋采样 …
www.mee.gov.cnii 前 言 为贯彻《中华人民共和国环境保护法》和《中华人民共和国大气污染防治法》，保护生 态环境，保障人体健康，规范固定污染源废气中含硫有机化合物的测定方法，制定本标准。