光度

Mainfactors are as follows: standard solution、 regressive curve、 parallel experiment of sample、 diacetyl monxime's reagent colorimetic method、 spectrophotometer、 sampling , etc .

影响测定结果的分量主要有：标准溶液、回归曲线、样品平行试验、二乙酰一肟分光光度法、分光光度计、取样等。

Focal power tells us .what a lens dose to parallel rays.

焦点光度表示透镜对平行光线所起的作用。

The method of using formaldehyde buffer solution a b sorption-hydrochloric pararosaniline spectrophotometry to determine sulfur diox ide in air has higher sensitivity and good selectivity,and prevents from adoptin g mercurial absorbent.But the conditions in lab are not well controlled,the v alue of reagent blank and standard curvilinear slope can't accord with the one s tipulated in"Methods for Air and Waste Gas Monitoring and Analysis".Some opra tional techniques for SO2 determination in lab are introduced for reference.

文摘：以甲醛缓冲溶液吸收-盐酸副玫瑰苯胺分光光度法测定空气中的二氧化硫，方法灵敏度高，选择性好，避免了使用含汞的吸收液，但如果实验条件控制不好，试剂空白值及标准曲线的斜率就会不符合《空气和废气监测分析方法》中规定的值，本文着重从操作技巧方面对二气化硫测定的实验室质量控制进行分析，仅供参考。

According to the oxidation of potassium periodate,a new analytical method for the spectrophotometric rapid determination of manganese carbonate produced during bioreducing manganese dioxide was developed.

利用高碘酸钾的氧化性，建立了分光光度法快速测定由微生物还原二氧化锰生成的碳酸锰含量的方法。

A simple and sensitive kinetic-spectrophotometric method is described for the determination of titanium based on its catalytic effect on the oxidation of Wright's stain by potassium periodate in the medium of sulfuric acid.

基于硫酸介质中，Ti对KIO4氧化瑞士色素反应的催化作用建立了测定微量钛的动力学光度法新体系。

In diluted H2SO4 and heating at 85℃, the discoloration reaction of xylene cyanol FF oxidized by potassium periodate can be greatly catalyzed by ruthenium. According to this phenomenon, a new method for catalytic kinetic spectrophotometric determination of ruthenium has been developed.

在稀H2SO4介质中及85℃的加热条件下，Ru对高碘酸钾氧化二甲苯蓝FF褪色反应具有显著的催化作用，据此建立了催化动力学光度法测定痕量钌的新方法。

On the basis of catalytic action of iridium on the oxidation reaction of xylene cyanol FF by the potassium periodate in the medium of 0.02mol/L H2SO4 and heating at 95℃, a new catalytic kinetic spectrophotometry for the determination of iridium is established.

在0.02mol/L硫酸介质中及95℃的加热条件下，对高碘酸钾氧化二甲苯蓝FF的褪色反应具有显著催化作用，据此建立了催化动力学光度法测定痕量依的新方法。

Commonly used method is: EDTA titration method, atomic absorption spectrometry and potassium permanganate titration.

常用的方法有：EDTA滴定法、原子吸收分光光度法和高锰酸钾滴定法。

In this paper, the principles and instruments of related petrolatum measurement for oil in water are analyzed, including infrared spectrometry, ultraviolet spectrometry, optical reflection method and ultraviolet fluorescence spectrometry, comparing their advantages and differences.

本文分析了水中矿物油检测技术的基本工作原理和仪器方法，包括：红外光谱法、紫外分光光度法、光反射法和紫外荧光法，比较了不同方法在测定矿物油时各自的优点和缺陷。

Oil in water ; petrolatum ; spectrometry ; ultraviolet fluorescence

水中油；矿物油；分光光度；紫外荧光

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。