The acid/alkali resistance of quaternary ammonium salt FBs was higher and the application was wider, but the ultraviolet ray absorption and fluorescence emission performance were lower than those of nonquaternary ammonium salt FBs.
结果表明：该季铵盐类增白剂耐酸碱性能明显提高，使用范围扩大，但其紫外吸收和荧光发射性能下降，且同样存在较为明显的光致异构化现象，耐光性也较差。
Recent advances in sample digestion, separation and instrumental measurement for analysis of platinum group elements in geological samples are reviewedThe low concentration of the PGE in most of the geological samples and their heterogeneous distributions make accurate determination of PGE very difficultSeparation of PGE from sample matrix are required to reduce nugget effect, to minimize the blank level and detection limits, and to avoid interferencesFire assay, acid treatment, alkali fusion and Carius tube techniques for digesting geological samples, tellurium coprecipitation and ion exchange methods for separating PGE from the matrix, atomic absorption spectrometry, inductively coupled plasma atomic emission spectrometry, instrumental neutron activation analysis and inductively coupled plasma mass spectrometry for determination of PGE, are reviewed in this paperBecause of the diverse contents and distributions of PGE in geological samples, the analytical methods should be used suitably for routine analysisAccording to the advantages and disadvantages of each method and the experience of our laboratory, this paper also summarizes the suitable digestion and preconcentrating methods for different geological samples.
文中阐述并归纳了近年地质样品中铂族元素的分离、富集及测试方法方面的最新进展。铂族元素本身的超痕量性，要求实验过程中对空白值的控制，干扰元素的扣除和检测限的降低更为严格，同时要克服块金效应。文中对消解过程中常用的火试金法、酸溶、碱熔方法和卡洛斯管法，分离富集过程中的Te共沉淀和离子交换法，测试手段中的原子光谱法、中子活化法和等离子质谱法等方法的最新进展进行了总结。由于复杂的地质样品中PGE的浓度范围不一、赋存形式多样，要求在具体样品分析过程中灵活地搭配使用各种分离富集和检测方法，结合笔者所在实验室在实验过程中发现的问题，对各种不同类型地质样品中铂族元素的分离富集、样品处理及测定方法也进行了总结。
The effects of acidic oxides SiO2, alkali oxides MgO, neutral oxide Al2O3 as additives on the alkali metal emission were investigated.
考察了酸性氧化物Si02、碱性氧化物MgO、中性氧化物Al203作为添加剂对碱金属析出行为的影响。
The source made a breakthrough the idea that air acetylene flame emission spectrometry was used for determination of alkali and alkali earth elements only.
该光源突破了空气-乙炔火焰原子发射光谱仅能进行碱金属、碱土金属的分析。
Process of Forming Emission Centre of Eu~(2 +) Ion in Alkali Metal-Gallium Family Complex Fluorides
碱金属&镓族复合氟化物中Eu~（2+）发射中心形成的过程
The thermal performance test specification of the alkali recovery boiler and the alkali recovery method fill in the blank of energy conservation and emission reduction, which is significant greatly for the running and operation of the alkali recovery boiler.
碱回收锅炉热工性能试验规范和碱回收率方法的确定，对于锅炉运行调节具有重要的指导意义，填补了节能减排工作的空白。
The Influence of Oxy-Organics on the Emission Intensity of Flame Atomic Emission Spectrometry (FAES) of Alkali Metals
含氧有机物对碱金属火焰原子发射光谱发射强度的影响规律
The slurries was prepared by using printing and dyeing wastewater and alkali decrement wastewater prepared in the laboratory, their pollutant emission properties are studied, and mechanism of desulfurization and denitrification are analyzed in detail.
采用实验室配制的印染废水和碱减量印染废水制备了水煤浆，研究了它们的燃烧特性，并对其脱硫、脱氮的机理进行了详细的分析。
On the basis of chemical fractionation and subsequent measurements, the transformation and emission characteristics of different forms of alkali and Cl during the whole process of rice straw pyrolysis were examined in a small-scale fixed bed pyrolysis reactor.
以化学分馏法和相关检测为基本分析手段，在小型固定床热解试验台上以稻杆为原料进行了试验，得到不同形式的碱金属和Cl在热解各阶段的动态析出过程和转化特性。
Light Emission Induced by Cooling Alkali Metal Vapors in Monoatomic Gases
利用冷却诱发的碱金属钠和钾蒸汽的发光
The excitation and emission wavelengths of fluorescent detection of alkali red 6 GDN and colour base were 310 nm and 554 nm respectively.
碱性红6GDN和色基荧光检测的激发波长和发射波长分别是310nm和554nm。