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1)  biological effects of concentration
生物效应浓度
1.
Methods of indexes of geo-accumulation,potential ecological risk index,and biological effects of concentration are applied to evaluate the eco-environmental quality of sediments in the Changjiang estuary and its adjacent waters which are divided into 7 zones by Cluster analysis in consideration of hydrodynamic process and deposition process and salinity impact.
采用地质累积指数法、潜在生态危害指数法和生物效应浓度法3种方法,考虑河口的水动力过程、沉积物分布和盐度影响,把长江口及毗邻海域划分为7个区域进行沉积物生态环境质量评价。
2)  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。
3)  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。
4)  Particle concentration(Cp) effect
颗粒物浓度(Cp)效应
5)  biological concentration
生物浓度
1.
Under the selected experimental condition, the average removal ratio of COD_(cr) could reach more than 85% and the biological concentration could also reach 28.
在该实验条件下,CODcr平均去除率在85%以上,生物浓度高达28。
6)  Pseudo-concentration effect
假浓度效应
补充资料:场效应生物传感器
分子式:
CAS号:

性质:将生物技术与晶体管工艺结合而产生的第三代生物传感器。离子选择性场效应晶体管(ISFET)是最早研制的、超小型、测定生物样品的pH值的传感器。将酶或其他分子识别物质和ISFET结合,便构成场效应生物传感器。只要生化反应中能产生离子浓度,包括pH值变化,就可由ISFET测定。如在ISFET绝缘层上固定青霉素酶,即构成青霉素传感器,它遇到青霉素即被水解而成青霉噻唑酸(较强的酸),引起pH值下降,即可反映出青霉素的浓度。

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