preconcentration的例句大全

investigation and practice of preconcentration technique in treating jisco huashugou red iron ore

酒钢桦树沟红铁矿预选研究及应用

column chromatographic preconcentration of trace copper in natural water using dithizone supported on naphthalene and determined by atomic absorption spectrometer

利用吸附有双硫腙的微晶萘萃取色层富集&火焰原子吸收光谱法测定天然水中痕量铜

spectrophotometric determination of orthophosphate in natural water after preconcentration by activated alumina micro-column

氧化铝微柱预富集分光光度法测定天然水体中微量磷酸根

ultra-trace analysis of iridium in coastal seawater sample by neutron activation analysis after anion exchange preconcentration

阴离子交换预浓集-中子活化法测定近岸海水样品中的超痕量铱

determination of cadmium at ultra-trace level by fi cold vapor generation aas with on-line ion exchange preconcentration

流动注射在线吸着分离预浓集冷蒸气原子吸收法测定痕量镉

determination of ultra-trace gold in geochemical exploration samples by gfaas after preconcentration with polyurethane foam

泡沫塑料吸附富集-石墨炉原子吸收光谱法测定勘查地球化学样品中超痕量金

determination of au in soil sample by polarography after seperation and preconcentration with gold orange-g chelate resin

金橙G螯合树脂分离富集极谱法测定土壤样品中的金

high sensitivity detector and sample preconcentration techniques are often adopted to improve concentration detection limits in ce.

为此，常采用高灵敏的检测器和样品预富集技术来提高毛细管电泳的检测灵敏度。

production practice of improvement of dry preconcentration technology by magnetic pulley

干选磁滑轮预选工艺改进的生产实践

Study on the Determination of Trace Cu(ⅱ) by DDTC Chelating Resin Preconcentration and Thin Layer Resin Phase Spectrophotometry

螯合树脂预浓集薄层树脂相吸光光度法测定痕量铜的研究

A method to determine Cu(ⅱ) by DDTC chelating resin preconcentration and thin layer resin phase spectrophotometry has been developed.

本文提出了在弱酸性条件下，以螯合树脂预浓集薄层树脂相光度法测定铜的新方法。

Separation and Preconcentration of Trace Silver with Nitrocotton

用硝基棉富集分离原子吸收光度法测定微量银