無水硫化鈉 的英文怎麼說
中文拼音 [wúshuǐliúhuànà]
無水硫化鈉
英文
anhydrous sodium sulfide-
Photographic grade sodium sulfite, anhydrous, na2 so3
攝影用化學藥品.無水亞硫酸鈉Photography chemicals - sodium formaldehyde bisulfite, anhydrous
攝影用化學藥品.無水甲醛合亞硫酸氫鈉Chemical reagent - sodium sulfate, anhydrous
化學試劑無水硫酸鈉Photographic grade sodium thiosulfate, anhydrous na2s2o3 and sodium thiosulfate, crystalline na2s2o3. 5h2o
攝影用化學藥品.無水硫代硫酸鈉和結晶硫代硫酸鈉Photography - processing chemicals - specification for anhydrous sodium thiosulfate and sodium thiosulfate pentahydrate
攝影技術.洗片化學製品.無水硫代硫酸鈉和硫代硫酸鈉五水合物規范Chemical reagent. sodium sulfite anhydrous
化學試劑.無水亞硫酸鈉The optimum conditions for air electrode preparation were shown as follow : 20 % ptfe and 20 % mno2 in active layer, thickness of active layer 0. 15 - 0. 25mm and the ratio of active carbon to ethine black 4 : 1 ; 60 % ptfe in the gas diffusion and waterproof layer, employing na2so4 as pore - making agents, thickness 0. 35 - 0. 45mm, colding forming and layer sequence catlytic layer / gas diffusion and waterproof layer / current collector layout ; employing 40 meshed nickel screen as current collector and thermal treatment temperature over 200
確定了制備空氣電極的優化工藝條件，催化層中ptfe含量約20 ， mno _ 2的最佳含量約為20 ，催化層中活性炭和乙炔黑的比例為4 ： 1 （質量比） ，厚度在0 . 15 - 0 . 25mm之間。防水透氣層中ptfe的含量約為60 ，以無水硫酸鈉作為造孔劑，厚度一般為0 . 35 - 0 . 45mm 。電極各層採用催化層/防水透氣層/集流體的排布方式，冷壓成型，熱處理對空氣電極的性能影響較大，熱處理溫度不低於200 。A novel aqueous two - phase system can be formed by the mixtures of a polymer and cationicanionic surfactants. such a system can be used as a partitioning system of proteins. in this work, we investigated the formation, phase behavior and protein partitioning in aqueous two - phase systems formed by dodecyltriethylammonium bromide / sodium dodecylsulfate / peg and dodecyltriethylammonium bromide / sodium dodecylsulfate / dextran. the ligands with affinity were attached to the polymers and the affinity partitioning of proteins was investigated. it was shown that the surfactants and polymers are enriched in different phases of aqueous two - phase systems. phase separation are promoted by increasing temperature and adding inorganic salts. different proteins are partitioned in different phases. the selectivity of protein partitioning is increased by adding ligands with affinity
報道了由正負離子表面活性劑與高聚物混合溶液形成的一種可用於蛋白質的分離及分析的新型雙水相萃取體系.研究了正負離子表面活性劑（溴化十二烷基三乙銨/十二烷基硫酸鈉）分別與葡聚糖和聚乙二醇混合雙水相體系的形成規律、相行為及牛血清蛋白和溶菌酶在雙水相體系中的分配.通過在高聚物分子中接上親和配基，研究蛋白質在雙水相體系中的親和分配.結果表明，在該體系中，表面活性劑與高聚物分別富集於不同相中.升高溫度及加入無機鹽均可促進雙水相體系的形成，不同蛋白質可分配于不同的相中.親和配基的引入極大地增強了蛋白質分配的選擇性Photography - processing chemicals - specifications for anhydrous sodium metabisulfite
攝影.沖洗用化學品.無水焦亞硫酸氫鈉規范Photography - processing chemicals - specifications for anhydrous sodium sulfite
攝影.沖洗用化學品.無水亞硫酸鈉規范分享友人