光度

The sample was dissolved by hydrofluoric acid and hydrogen nitrate, then the tantalite and hydrofluoric acid formed TaF6- in the media of tartaric acid－hydrofluoric acid.

试样以氢氟酸、硝酸溶解后，在酒石酸－氢氟酸介质中，钽酸与氢氟酸形成阴离子TaF6-，与结晶紫生成蓝紫色的络合物，用苯萃取出来采用光度法测定钽量，测定结果均在国标允许误差范围内。

A sensitive and new solid-phase spectrophotometry for the determination of tartrazine in soft drinks has been developed.

本文报导了一个灵敏的固体相光度法测定清凉飮料中微量柠檬黄的新方法。

Sensitive and new solid-phase spectrophotometry for the determination of tartrazine in soft drinks has been developed.

bstract 本文报导了一个灵敏的固体相光度法测定清凉飮料中微量柠檬黄的新方法。

The cameras and receivers that are used in modern color TV must have three electron guns instead of one because it is necessary to televise not just differences in intensities of light, but the differences in intensity of three kinds of light-the blue, green, and red wavelengths of the primary colors of transmitted light.

现代彩色电视用摄像机与接收机必须有三个而不是一个电子枪，因为电视播送不仅需要光度不同，而且需要三种光的光强（发射的光的三原色蓝，绿，红的波长）也不同。

The chromogenic reaction that aluminium-chromeazurol S reacts with cation surfactant CTAC (cetyl trimethylammonium chloride) to form stable iso-ligand ternary complex can be used to determine the luminosity of aluminium oxide.

在pH=6的乙酸盐缓冲溶液中，铝一铬天青S与阳离子表面活性剂氯化十六烷基三甲胺形成稳定异配位体三元络合物的显色反应，籍以进行三氧化二铝的光度测定。

Methods:the dispersible tablets was prepared by taking lose subsfrits hydroxypropyl cellulose and hydroxypropymethyl cellulose as excipient.the phenobarbital content in tablets was determined by uv spectrophotometry at 240 nm.results:the uniformity test of dispersion showed that the tablets could smoothly disperse and pass through a no.2 sieve within 1 min.

以低取代羟丙基纤维素、羟丙甲纤维素等为辅料研制该分散片，紫外分光光度法测定该片中苯巴比妥的含量，测定波长为240 nm。结果：分散均匀性试验表明该分散片在1 min内均匀分散并通过2号筛。

A thiocyanate differential spectrophotonetry method was used to determine the high content tungsten and satisfactory results were obtained.

采用硫氰酸盐示差分光光度法测定高含量的钨，取得了较好的效果。方法的回归方程较好，相关系数为0.99995；样品回收率为99.3%～100.2%，RSD为0.28

Mercury thiocyanate spectrophotometry is used in determination of hydrochloride in air.

硫氰酸汞分光光度法测定空气中氯化氢，方法试剂空白不稳定，控制显色温度和硫氰酸汞—乙醇溶液的制备是降低并稳定试剂空白的关键所在。

The present investigation deals with the differential spectro photometric method for the determination of high content rhodium using thoron as reagent.

应用差示分光光度法在适当的条件下，测量高浓度元素，相对误差可以降低到百分之一以下，能同重量法和容量法相比。

A new fading spectrophotometric method for the determination of chromium is proposed, based on the decoloration of thoron Ⅱ oxidized by chromium in the medium of 0.32 mol/L sulphuric acid.

基于在0.32 mol/L硫酸介质中，铬氧化钍试剂Ⅱ褪色，提出了钍试剂Ⅱ褪色分光光度法测定铬的新方法。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。