1) Dual-wavelength spectrophotometry
双波长分光光度法
1.
Determination of chloramphenicol in dexamethasone and chloramphenicol compound cream by dual-wavelength spectrophotometry;
双波长分光光度法测定复方地氯霜中氯霉素的含量
2.
Determination of the aloin by dual-wavelength spectrophotometry;
双波长分光光度法测定芦荟苷的含量
3.
Nickel and vanadium in crude oil were determined simultaneously by two-times and dual-wavelength spectrophotometry with 5-Br-PADAP as chromogenic agent and Triton X-100 as sensitized agent.
采用系数补偿和双峰双波长的两次双波长分光光度法,以5-B r-PADAP为显色剂、Triton X-100为增溶增敏剂,同时测定原油中N i(Ⅱ)和V(Ⅴ)。
2) Dual wavelength spectrophotometry
双波长分光光度法
1.
Determination of Yazhoukang by dual wavelength spectrophotometry;
双波长分光光度法测定牙周康的含量
2.
Determination of Phenanthrene and Phenanthraquinone by Dual Wavelength Spectrophotometry;
双波长分光光度法测定菲与菲醌
3.
Determination of phenol red in rat small intestine circulation solution by dual wavelength spectrophotometry;
大鼠小肠循环液中酚红的双波长分光光度法的测定
3) double-wavelength spectrophotometry
双波长分光光度法
1.
Determing total flavonoids in rape bee-pollen by double-wavelength spectrophotometry;
双波长分光光度法测定油菜蜂花粉中总黄酮的含量
2.
In this paper, a double-wavelength spectrophotometry was applied to assay the total flavonoids in black corn pollen.
介绍了一种双波长分光光度法,应用于测定黑玉米花粉中的总黄酮含量,测定波长510nm,参比波长584nm,平均回收率98。
3.
With PAR as the colour-developing agent, the colour conditions and incident ray wavelength of Cu2+ , Zn2+ in the solution of pyrophosphate imitating gold are determined by double-wavelength spectrophotometry.
研究了以4-(2-吡啶基偶氮)间苯二酚(PAR)为显色剂,利用双波长分光光度法测定焦磷酸盐仿金镀液中的Cu~(2+)、Zn~(2+)含量时的显色条件及入射光波长,讨论了干扰组分的影响及排除方法,确定了测定Cu~(2+)、Zn~(2+)的线性范围和测定方法。
4) Double wavelength spectrophotometry
双波长分光光度法
1.
Iron and aluminium in the digestion solution of silicon nitride are determined simultaneously by double wavelength spectrophotometry with the mixture of chrome azurol S (CAS) and phenanthroline (Phen ) as the double chromogenic reagents, separation of the two elements from components is not needed in the determination.
以铬天青Ｓ和邻菲啉作混合显色剂，不需预分离，可用双波长分光光度法同时测定氮化硅消解液中的铁和铝。
2.
METHODS:The content of baicalin was determined by double wavelength spectrophotometry.
方法 :采用双波长分光光度法测定黄芩苷的含量。
5) dual-wavelength spectrophotometric method
双波长分光光度法
1.
The contents of the chief componmts were determined by the dual-wavelength spectrophotometric method.
方法以替硝唑、氯霉素为主药,卡波姆-940、丙二醇等为辅料制备凝胶;采用双波长分光光度法测定主药含量。
6) dual-wavelength spectrophotometry
双峰双波长分光光度法
1.
Study on the dual-wavelength spectrophotometry for the determination of rare earth elements with dibromocarboxyarsenazo;
二溴羧基偶氮胂双峰双波长分光光度法测定稀土元素研究
补充资料：双波长分光光度法
分子式：
CAS号：
性质：在单位时间内有两条波长不同的光束λ1和λ2交替照射同一个溶液，由检测器测出的吸收度是这两个波长下吸收度的差值△A。△A与被测定物质的浓度成正比，这个方法称双波长分光光度法。双波长分光光度法的关键是正确选择两波长λ1、λ2，要求被测组分D在两波长处的△A足够大，而干扰组分G和背景在两波长应有相同的吸光度(△A=0)。为满足上述要求，一般是将λ2选在待测组分的最大吸收波长，λ1是选在干扰组分等吸收波长。此法可测定浑浊样品，也可测定吸收光谱相互重叠的混合物样品，也是当杂质使主峰产生肩峰时测定主峰物质的较好定量方法。
CAS号：
性质：在单位时间内有两条波长不同的光束λ1和λ2交替照射同一个溶液，由检测器测出的吸收度是这两个波长下吸收度的差值△A。△A与被测定物质的浓度成正比，这个方法称双波长分光光度法。双波长分光光度法的关键是正确选择两波长λ1、λ2，要求被测组分D在两波长处的△A足够大，而干扰组分G和背景在两波长应有相同的吸光度(△A=0)。为满足上述要求，一般是将λ2选在待测组分的最大吸收波长，λ1是选在干扰组分等吸收波长。此法可测定浑浊样品，也可测定吸收光谱相互重叠的混合物样品，也是当杂质使主峰产生肩峰时测定主峰物质的较好定量方法。
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参考词条