A new method for the spectrophotometric determination of trace copper with 2,4 dihydroxybenzaldehyde thiosemicarbazone(DBT) is reported in this paper.
研究了新显色剂2 ，4 二羟基苯甲醛缩氨基硫脲（DBT ）与铜的显色反应，建立了光度法测定微量铜的新方法。
A method for the spectrophotometric determination of trace Cu 2+ with flow injection liquid liquid extraction separation and pre concentration was developed.
用自制的分相器与流动注射仪联用，对有机相析出液- 液萃取光度法测定微量铜的流路参数和操作程序进行优化。
Spectrophotometric determination of cobalt in bright nickel plating bath was advanced with ammonium thiocyanate as complexing agent and butyl acetate as extracting agent.
以硫氢酸铵络合钴离子，随后用乙酸丁酯进行萃取，利用分光光度法测量光亮镀镍溶液中的钴离子。
A relatively systematic review is carried out on the basic principles, reagents, methods and applications of indirect and direct spectrophotometric determination of sulphate.
本文就硫酸根的间接及直接光度测定的基本原理、试剂、方法和应用等作了较为系统的评述。
A new method is presented for the spectrophotometric determination of Gibberellins, which is based on the reaction of phosphorus-molybdenum heteropoly acid with Gibberellins.
本文研究了赤霉素在磷钼杂多蓝形成反应中的现象，通过正交试验比较并优化了实验条件，建立了测定赤霉素的杂多酸光度法。
In the presence of polyvinyl alcohol (PVA) the solution is stable and a distinct color change occurred. The method can be applied to the spectrophotometric determination of iodide.
在聚乙烯醇存在下，缔合物体系稳定且溶液颜色有明显的变化，可用于I -离子的光度测定。
This system was applied in flow injection-catalytic spectrophotometric determination of trace phenols using stopped-flow technique and the experiment concludes that the relative is 0.9992.
将该系统应用于停流-催化光度法以测定痕量酚，实验结果表明，其线性相关系数为0.9992。
A new method for the flow injection spectrophotometric determination of germanium using salicylfluorone in the presence of cationic surfactant cetyltrimethylammonium bromide has been developed.
本文将锗一水杨基荧光酮一溴化十六烷基三甲基铵胶束五色体系应用于流动注射分析，建立了测定微量锗的快速方法。
Objective: to optimize the water extracting technology for Pingzhi capsule and establish a ultraviolet spectrophotometric method for the determination of total anthraquinones in Pingzhi capsule.
目的：优选平脂胶囊最佳水提工艺，建立其总蒽醌含量的紫外分光光度测定方法。
Using thymol-sodium hypobromite as chromogenic reagent, and extracting the colour formed with butanol, a spectrophotometric method for the determination of arginine in fermentation broth was studied.
以百里酚的次溴酸钠溶液为显色剂，用正丁醇萃取显色产物，以分光光度计比色测定有机相的吸光度值。
This paper has studied and compared three methods of determination of cardiovascular drug, Nitrendipine: Cyanide selective electrode method, single sweep polarography and UV-spectrophotometric method.
本文研究并比较了三种测定抗心血管病药尼群地平的方法：氰离子选择电极法、示波极谱法和紫外分光光度法。
A new spectrophotometric method for the determination of trace nitrite was studied. The method is based on the diazo - reaction of methylene violet with nitrite in hydrochloric acid medium.
研究了在盐酸介质中微量亚硝酸根与亚甲紫发生的重氮化反应，建立了测定微量亚硝酸根的新方法。
The partial least square (PLS) method for spectrophotometric simultaneous determination of phenylalanine, tryptophan and tyrosine in the mixed amino acids was studied.
本文将偏最小二乘法(PLS)用于分光光度法同时测定混合氨基酸体系中的苯丙氨酸、色氨酸和酪氨酸。
In the determination of titanium with hydrogen peroxide method, molybdenum and -vanadium interference can be eliminated simultaneously by three wavelength spectrophotometric method.
用过氧化氢法测定钛时，钼和钒的干扰可用三波长分光光度法同时消除。
Spectrophotometric method was used for determination of polysaccharides in dioscorea opposita thunb collected from Henan, Shandong and Shanxi and dioscorea alata L from Guangdong and Guangxi.
采用硫酸苯酚显色，分光光度法测定了山药及其同属植物参薯中的多糖含量。
We study the affection for the spectrophotometric method determination of sodium copper chlorophyllin in ratafee of all kinds of coefficiant of variation and obtain valuable results.
研究各种操作条件对分光光度法测定果酒中叶绿素铜钠的影响，得到了较有价值的结论。
A new spectrophotometric method for the determination of trace nitrite is studied. The method is based on the nitrosation reaction of xylene cyanol FF with nitrite in diluted hydrochloric acid medium.
研究了在稀盐酸介质中微量亚硝酸根与二甲苯蓝FF发生的亚硝化反应，建立了测定微量亚硝酸根的新方法。
A spectrophotometric method for the fast determination of furazolidone residue in the aquatic products with standard curve and standard addition was developed.
建立了快速检测水产品中呋喃唑酮残留量方法。 采用分光光度法，以校准曲线法、标准加入法检测海虾、养殖虾中呋喃唑酮残留量。
A new spectrophotometric method for the determination of verapamil is based on the charge transfer reaction with tetrachlorobenzoquinone inalkaline solution.
方法 ：利用克拉霉素与茜素在水 醇介质中发生电荷转移反应 ，形成电荷转移络合物 ，采用可见分光光度法测定 。
A new spectrophotometric method for the determination of verapamil is based on the charge transfer reaction with tetrachlorobenzoquinone inalkaline solution.
方法 ：利用克拉霉素与茜素在水 醇介质中发生电荷转移反应 ，形成电荷转移络合物 ，采用可见分光光度法测定 。
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