1) median growth concentration
半效应浓度
1.
The effects of rare earth on the growth of three crops (rice, rape, soybean) in three kinds of soils (red soil, yellow fluvo-aquic soil, yellow cinnamon soil) were studied by organization for economic co operation and development (OECD) method, and the EC50 (median growth concentration) values were obtained.
从半效应浓度 (EC5 0 )值看 ,在供试条件下 ,混合稀土对红壤上水稻和油菜以及黄潮土上大豆生长量的抑制作用较大 ,毒性相对也较强。
2) median effect concentration(EC50)
半效应浓度(EC50)
3) 50%effective concentration
半效浓度
5) concentration effect
浓度效应
1.
There is an unique concentration effect in p xylene liquid phase oxidation, that is , the reaction time become shorter with the decreasing of p xylene initial concentration, but the absolute reaction rate doesn't show a big change.
PX氧化有着独特的浓度效应 ,即反应时间随总反应物浓度的减少同步减少 ,而绝对反应速率变化不大。
2.
The UV-VIS spectra of nine organic iron-sulfur cluster complexes have been assigned, and their concentration effect has been studied.
本文研究了某些铁-硫原子簇络合物紫外-可见光谱220～230nm吸收带λ_(max)的浓度效应,△λnm随络合物结构对称性增加而减小,随浓度基数增大而变大的变化关系,该类型络合物紫外-可见光谱吸收峰的归属;计算了Fe～Ⅱ分裂能△值;配体上的取代基效应,以及在二氯甲烷等溶剂中的溶剂效应。
6) Concentration Effects
浓度效应
1.
Spectra Characteristics and Concentration Effects of CaS:Ce Prepared with NH_4Cl as Flux;
NH_4Cl作助熔剂合成CaS：Ce的光谱特性及其浓度效应
2.
Techniques for high-precision measurements of Fe isotope ratios using MC-ICP-MS at both low-and high-resolution modes have been reported in detail,which includes assessments of isobaric inferences,matrix effects,concentration effects and long-term repeatability.
详细报道了在低分辨和高分辨模式下运用MC-ICP-MS进行Fe同位素比值高精度测试的方法,对Fe同位素测定过程中谱峰干扰、基质效应、浓度效应、仪器测试的长期重现性等问题进行了评估,并对两种运行模式的测试结果进行了对比。
补充资料：半效浓度
分子式：
CAS号：
性质：半效浓度是指能产生50%最大效应的药物浓度。其单位是mol/L。ED50处于S形曲线斜度最大之处，剂量少有变化，此处的效应就会出现很大的变动，因此敏感性高、重复稳定性好，是量反应药效强度的重要指标。
CAS号：
性质：半效浓度是指能产生50%最大效应的药物浓度。其单位是mol/L。ED50处于S形曲线斜度最大之处，剂量少有变化，此处的效应就会出现很大的变动，因此敏感性高、重复稳定性好，是量反应药效强度的重要指标。
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