4.Add Ferroin indicator and titrate with 0.025 N ferrous ammonium sulphate solution.
加入亚铁菲绕啉离子,用滴定法测量亚铁铵溶液。
5.More ammonium sulphate solution is being recovered in the process of distilling oil shale.
在提炼油页岩的过程中回收的铵液比过去多了。
6.A separation model of ionizable and neutral enantiomers with cyclodextrin-sodium dodecyl sulphate (SDS) micellar electrokinetic chromatography was established.
建立了环糊精-十二烷基钠胶束电动色谱中可电高及电中性-光学异构体的分离模型。
7.under the condition of the microwave radiation,the pectin in the peduncle of tobacco was extracted by the oxamide solution and was deposited by saturated aluminum sulphate solution.
在微波条件下,以草铵溶液为溶剂,饱和铝沉淀提取烟梗中的果胶。
8.This paper according to related informations developed a determination method on dihydrostreptomycin sulphate related substances by HPLC.
根据有关资料建立了双氢链霉素相关物质HPLC测定方法并进行了方法验证。
9.The study indicates that either sedimentation by adding sulphide and polyferric sulphate or ferrooxidant method has sim ple operation process, perfect effects and extensive application prospects.