詞語：preconcentration
preconcentration的解釋
preconcentrationn. 預選；預濃縮；預先富集
preconcentration的意思
preconcentration 預富集;預先富集;預濃縮;預選;chelating agent active carbon preconcentration 螯合劑-活性碳富集：;Methods for analysis of noble metals in geochemical samples determination of iridium content--Preconcentration by thiourea--Catalytic spectrophotometric method 地球化學樣品中貴金屬分析方法 硫尿富集--催化分光光度法測定銥量;Methods for analysis of noble metals in geochemical samples determination of platinum and rhodium content--Preconcentration by thiourea--Catalytic polarographic methed 地球化學樣品中貴金屬分析方法 硫尿富集--催化極譜法測定鉑量和銠量;Higher purity copper cathode - Determination of silver content - Separation and preconcentration with sulfhydryl cotton-flame atomic absorption spectrometric method 高純陰極銅化學分析方法 巰基棉分離- 火焰原子吸收光譜法測定銀量;
preconcentration的參考例句
1.Preconcentration and Separation of Trace of Copper and Cobalt vrith 1-(2-Thiazolazo)-2-Naphthol Loaded on Silica Gel. 用1-（2-塞唑偶氮）-2-萘酚改性硅膠進行痕量銅、鈷的富集和分離的研究。
2.In order to improve the detection sensitivity of capillary electrophoresis, various sample preconcentration methods have been developed. 為了提高毛細管電泳的檢測靈敏度，多種樣品富集的方法得以發展。
3.Flow-injection flame atomic absorption spectrometry (FIA-FAAS) with the slotted quartz tube has been applied to determine lead in water via on-line preconcentration with chelating resin. 應用高效的在線流動注射贅合樹脂預富集石英縫管增敏火焰原子吸收系統直接測定水中痕量鉛。