1) cation exchange capacity method
阳离子交换容量法
1.
In this paper,the research status quo of the methods for determination of layer charge density were presented;the theories and measurement procedure of alkylammonium method,structural formulae method,cation exchange capacity method and methylene blue method were introduced in detail; advantages and disadvantages of each method were compared.
本文系统介绍了国内外对蒙脱石层电荷测定方法的研究现状,详细阐述了烷基铵法、结构式推算法、阳离子交换容量法、亚甲基蓝法测定层电荷的原理以及测试程序,分析了不同测试方法的优缺点。
2) cation exchange capacity
阳离子交换容量
1.
Structure and cation exchange capacity evolution of Xuancheng zeolite under heat treatment;
宣城沸石热处理结构和阳离子交换容量演化
2.
Three measuring methods of bentonite cation exchange capacity are compared and evaluated according to measuring results and process.
对比3种不同容量法测定膨润土阳离子交换容量Ccec方法,从测定结果和测定过程对方法进行评价,得出氯化铵-氢氧化铵法准确度高,方法简便;电位滴定法快速、省时、节能,两种方法适合不同领域的分析要求。
3.
The formation and cation exchange capacity (CEC) of zeolite synthesized after alkaline activation of a Chinese fly ash, as a function of temperature, liquid/solid ratio, NaOH concentration and reaction time in closed systems were investigated.
系统研究了由粉煤灰合成沸石过程中温度、反应时间、液固比和NaOH浓度等合成条件对沸石生成及其阳离子交换容量(CEC,CationExchangeCapacity)的影响。
3) cation-exchange capacity(CEC)
阳离子交换容量(CEC)
4) CEC
阳离子交换量
1.
APPLICATION OF SOIL CEC TO EVALUATION OF SOIL QUALITY IN SHANGHAI;
土壤阳离子交换量在上海城市土壤质量评价中的应用
2.
Study On Relationship Between Organic Matter,Soil Fractions and CEC in Qinghai Soil;
青海省土壤阳离子交换量与有机质和机械组成关系的研究
3.
Distribution characteristics of soil pH,CEC and organic matter in a small watershed of the Loess Plateau
黄土高原小流域土壤pH、阳离子交换量和有机质分布特征
5) cation exchange capacity
阳离子交换量
1.
Influence of introducing method and amount of Ca~(2+) on the swelling capacity and cation exchange capacity of montmorillonite;
Ca~(2+)引入方式及用量对蒙脱石的膨胀容及阳离子交换量的影响
2.
To study the effects of pyrolytic temperature on the cation exchange capacity(CEC) of the crop-residue-derived black carbon(BC) and the Pb2+ and Cd2+ sorption on BC,the BC was isolated from the charred wheat residues by pyrolyzing the wheat residues under the oxygen-limited conditions for 24 h at 150,250,300,400 and 500 ℃ respectively.
为探讨热解温度对秸杆燃烧物提取黑碳阳离子交换量和重金属吸附量的影响,在150～500℃范围24h热解小麦秸秆,提取黑碳,测定黑碳阳离子交换量(CEC)和黑碳吸附铅(Pb2+)和镉(Cd2+)量。
3.
The results show that the imperfect saturation increases the cementation factor m and decreases the saturation index n,so that the saturation degree must be inspected and corrected;shale effect scatters the data measured away from Archie formulae,decrease both of m and n,however the cation exchange capacity Q_V correction will improve the correlation betwee.
结果表明,岩心饱和程度不足会使胶结指数m值变大,孔隙度指数n值变小,为此必须检验岩心饱和程度并予以校正;泥质影响使测量数据分散,使m、n值均偏小,经阳离子交换量QV校正可改善与Archie公式的相关性;高饱和水矿化度使m、n值都增大,虽使泥质影响变小,但QV校正仍属必要;高温高压使m值增大,n值减小;油驱后的n值比气驱后大。
6) cation exchange capacity(QV)
阳离子交换量(QV)
1.
By analyzing the core electrical properties,it is found that m and n in Archie\'s equation are mainly influenced by cation exchange capacity(QV) when cation additional conductivity is high,and exponential with QV;They are mainly influenced by pore structures when the cation additional conductivity is low,and logarithmic with K/.
通过岩电分析可知,当阳离子交换附加导电性较强时,阿尔奇公式中的m、n值主要受阳离子交换量(QV)影响,与QV呈指数关系;当阳离子交换附加导电性较弱时,m、n值主要受孔隙结构影响,与K/呈对数关系。
补充资料：阳离子-阳离子干扰
分子式：
CAS号：
性质：火焰原子吸收光谱分析中，伴生阳离子对待测阳离子测定中信号的增强或抑制。它属于化学干扰；信号增强属于增感效应，信号被抑制属于干扰效应。如测定镁时铝存在可抑制镁的信号；测定铝时钛存在，可增强铝的信号。前者由于生成难解离的MgO·Al2O3，减少了镁的基态原子；后者是钛的亲氧能力比铝强，钛夺取了氧化铝中的氧，生成氧化钛，铝从氧化铝中释放出来。
CAS号：
性质：火焰原子吸收光谱分析中，伴生阳离子对待测阳离子测定中信号的增强或抑制。它属于化学干扰；信号增强属于增感效应，信号被抑制属于干扰效应。如测定镁时铝存在可抑制镁的信号；测定铝时钛存在，可增强铝的信号。前者由于生成难解离的MgO·Al2O3，减少了镁的基态原子；后者是钛的亲氧能力比铝强，钛夺取了氧化铝中的氧，生成氧化钛，铝从氧化铝中释放出来。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条