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- A method for the determination of copper in copper salt samples by micro-titrimetry is described. 采用微量滴定法測定銅鹽中銅的含量,結果表明,方法分析速度快,試劑用量少,與常量滴定法無(wú)顯著(zhù)性差異。
- A simple method for preparing m -cresol from m -toluidine via diazonium salt at room temperature using copper salt as a catalyst is proposed. 提出一種以間甲苯胺為原料，在銅鹽催化室溫條件下，經(jīng)重氮鹽制備間甲苯酚的簡(jiǎn)單方法。
- Re-titration measurement of aluminium sulfate in water purification agent with copper salt complexed with EDTA is described in this paper. This method is simple, convenient, rapid and accurate. 摘要本文用EDTA絡(luò )合-銅鹽返滴定法測定凈水劑硫酸鋁，方法簡(jiǎn)便、快速、準確。
- The copper salt helps assimilate the iron and participates in the metabolism of protein. 銅氯化鈉幫助鐵質(zhì)吸收和助于蛋白質(zhì)新陳代謝。
- Do not use too much salt when using the dry salting method. 當使用干腌法時(shí)，不需要放太多鹽。
- Do not use too much salt when using dry salting method. 把魚(yú)清理干凈后，在盒子或籃子的底部放入幾條魚(yú)。
- The preparation process with common copper salt, sodium sulfide and N, N-dialkyl dithio formate as material is one simple chemical reaction process. 該制備方法是以常見(jiàn)的銅鹽、硫化鈉及N，N-二烷基二硫代甲酸鹽為原料，通過(guò)簡(jiǎn)便的化學(xué)反應劑可制得單分散硫化銅半導體納米顆粒。
- The experiment result shows that the seleniou acid copper salt phosphoric acid system has advantge of anti corrosion over selenium copper system. 實(shí)驗結果表明，亞硒酸-銅鹽-磷酸發(fā)黑體系較之常用的硒-銅體系在耐蝕方面有較明顯的優(yōu)點(diǎn)。
- Silver salt method was set up to measure the content of arsenic trioxide in Niuhuang Jiedu Pian and Niuhuang Jiedu Wan. 摘要建立了銀鹽法測牛黃解毒片和牛黃解毒丸中三氧化二砷含量的方法。
- Aiming at the technology deficiency of the copper salt electrolytic red coloring,the technology of electrolytic red coloring on aluminum alloy profile is studied. 針對銅鹽電解紅色著(zhù)色技術(shù)所存在的缺陷,對鋁合金型材電解紅色著(zhù)色技術(shù)進(jìn)行了試驗研究。
- Single factor test was applied in the study on protein extraction from larva of Dendrolimus punctatus walker with salt method. 采用單因素實(shí)驗對鹽法提取馬尾松毛蟲(chóng)幼蟲(chóng)蛋白質(zhì)進(jìn)行了研究。
- According to orthogonal experiments,thick salt method and thin alkali method for extraction of ribonucleic acid from waste yeast were compared. 通過(guò)正交實(shí)驗對濃鹽法和稀堿法提取啤酒廢酵母核糖核酸進(jìn)行了比較。
- KOH sub-molten salt method was studied for preparing potassium titanate whiskers and titanium dioxide by using titaniferous slag as the raw material. 研究了以高鈦渣為原料、采用KOH亞熔鹽法制備鈦酸鉀晶須和二氧化鈦的新方法,探討了反應溫度、初始KOH濃度、反應時(shí)間和堿礦比等因素對鈦酸鉀晶須形貌的影響。
- The order of lithium organocuprates deriving from different copper salts is CuSCN＞CuI＞CuBr＞CuCl. 不同銅鹽來(lái)源的有機銅鋰的熱穩定性順序為：CuSCN＞CuI＞CuBr＞CuCl。
- Con clu sion Compared with the silver salt method and hydride generation-atomic absorption spectrometry,this method had many advantages such as simplicity of operation,rapidity and suitability for the analysis of batch samples. 結論與銀鹽法、氫化物發(fā)生-原子吸收法比較,具有操作簡(jiǎn)便、快速、適合批量樣品分析等優(yōu)點(diǎn)。
- Some, such as cochineal, come from insects and a small number, including iron and copper salts, come from mineral sources. 有一些，如洋紅，來(lái)自昆蟲(chóng)，還有一小部分，包括鐵和銅鹽，來(lái)自礦產(chǎn)資源。
- As a new kind of methods to prepare inorganic material powders. molten salt method (MSM) and some of its applications are recommended in this paper. 摘要介紹了一種新的無(wú)機材料粉體的制備方法熔鹽法，以及該方法的部分應用。
- Extracting ribonucleic acid from discarded brewers yeast was studied and alkali method was compared with salt meathod. The result showed that salt method was better than alkali one. 摘要通過(guò)從啤酒廢水生產(chǎn)的酵母中提取核糖核酸的實(shí)驗，對稀堿法和濃鹽法從操作步驟、產(chǎn)品產(chǎn)率等幾方面進(jìn)行比較，從而得出濃鹽法優(yōu)于稀堿法的結論。
- Photopromoted carbonylation of chloroalkanes with carbon monoxide and carbon dioxide was catalyzed by copper salts and carried out under mild conditions. 研究了光促進(jìn)溫和條件下,非貴金屬銅鹽催化氯代烷烴的羰基化反應。
- It introduces the pickle of South Korea about its disposal method of materials, salting method, fermentation principle. 摘要該文介紹了韓式泡菜的原料處理方法、腌制方法；
