1) exchangeable cation
交换性阳离子
1.
Correlations were analyzed as following: (1) Correlations in exchangeable Ca,Mg,Na and K; (2) Correlations between exchangeable cations and dissoluble ions (Ca2+,Mg2+,Na+,K+,CO32-,HCO3-,Cl-and SO42-) ;(3) Correlations between exchangeable cations and soil ESP,SAR,pH and total alkalinity.
对各交换性阳离子之间、交换性阳离子与土壤可溶性阴阳离子以及交换性阳离子与土壤碱化度(ESP)、钠吸附比(SAR)、pH和总碱度等碱化参数之间的相关性进行了统计分析。
2.
Comparing the rhizosphere soil of mixed forest of larch and ash,variable trends of exchangeable cation in the rhizosphere soil of mixed forest of larch and ash were obtained.
通过对落叶松水曲柳混交林中根际土壤交换性阳离子的比较,得到了落叶松水曲柳混交林根际土壤交换性阳离子的变化趋势为:除钠外,落叶松的各项交换性阳离子含量均大于水曲柳,钠与钾、钙、镁存在拮抗作用,营造落叶松混交林有利于促进落叶松的生长。
3.
By analysis of exchangeable cation content of soil of secondary young growth of larch,young growth of Pinus sylvestris var.
通过对二代落叶松幼龄林、樟子松幼龄林、天然次生林、落叶松水曲柳混交林土壤交换性阳离子的分析,得到了同林龄土壤交换性阳离子变化趋势,为评价土壤供肥蓄肥能力、改良土壤和合理利用林地、营造速生丰产林提供重要依据。
2) positive ionic exchange ability
阳离子交换性
1.
Zeolite, because of its extremely strong positive ionic exchange ability and adsorption, was used as carrier of nitrogen fertilizer, NH 4NO 3.
利用沸石较强的阳离子交换性和吸附性特点，将其用作氮肥硝酸铵载体，采取土壤表施和深施，定期测定土壤氮素含量，研究其动态变化。
3) base exchange
阳荷性离子交换
4) cation exchange properties
阳离子交换特性
5) cation exchange capacity(CEC)
阳离子交换性能
1.
The effect of concentration of sodium hydroxide,liquid /solid ratio and additives on the cation exchange capacity(CEC) of zeolite were investigated.
以粉煤灰为原料,在微波辐射条件下,采用多段技术合成了NaP1型和NaA型沸石,考察并讨论了氢氧化钠的浓度、液固比以及添加剂等对沸石产品的阳离子交换性能(CEC)的影响。
6) cation exchange
阳离子交换
1.
Cellulose/titanium dioxide composite cation exchanger for expanded bed adsorption;
一种纤维素/钛白粉阳离子交换扩张床吸附剂
2.
The impurities were separated from niobium through cation exchange, and eluted with 4mol/L HNO3 solution and determinated by ICP-OES.
样品用氢氟酸溶解,阳离子交换分离铌基体富集杂质元素,4mol/L硝酸洗脱杂质,用电感耦合等离子体发射光谱法测定。
3.
Through contrastive analysis of Archie model and the applicable conditions of Waxman-Smits model,an oil saturation quantitative interpretation model,which is based on the reservior parameters as bound water saturation,cation exchange capacity,and so on,is established to obtain the important prec.
主要通过对比分析阿尔奇模型和 Waxman-Smits 模型的适用条件,建立了以束缚水饱和度、阳离子交换量等参数为核心的低阻油层含油饱和度测井定量解释模型,以获得较准确的低阻油藏的重要储层参数,该评价方法在储量计算和油藏开发生产中获得了明显的地质效果。
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