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平衡时间
    The balance time and isotherm equation for the adsorption of HPW12 on the carrier are determined.
    吸附实验确定了HPW12在载体上的吸附平衡时间及吸附等温线方程。
    The experiment showed that the method could absorb co quantitively at a pH ofbetween 7,16 and 7.30,the balance time was 20 minutes and the absorptivc capacity was about 420μg/g.
    实验结果表明,此法在pH为7.16~7.3之间可定量吸附钴,平衡时间约20分钟,吸附量约420μg/g、1000倍的约20种常见离子不干扰测定。
    The measuring factors of electrodes linear relationship and repeatability. Complexing balance time and pH were semi quantitative discussed. Based on 10 -9 mol·L -1 lead detection limit of electrodes,10min balance time was adopted.
    对电极的线性关系和重现性、络合平衡时间、pH等因素做了半定量讨论.在电极检测下限为10-9mol·L-1铅时,采用10min平衡时间为宜,pH等是影响络合反应的主要因素.在天然pH值下,铅的表观络合容量为呼伦湖最大,乌梁素海最小
    Test result shows that BQAS can be used for effectively reducing surface tension,at liquid-solid ratio of 50∶1,its minimum balance time is 90 min on sand stone surface (40~80 mesh),saturated adsorption rate is 2.13×10~ -5 mol/g. it has a good surface activity.
    试验结果表明,双季铵盐BQAS能显著降低溶液表面张力,在溶液表面的饱和吸附量为1·58×10-6mol·m-2; 在液固比为50∶1时,双季铵盐BQAS在砂岩表面(40~80目)的吸附最低平衡时间为90min,饱和吸附量为2·13×10-5mol·g-1,具有良好的表面活性。
    Factors such as extraction temperature,balance time and sample concentration were investigated concerning the SPME-GC/MS analysis sensitivity.
    对影响SPME-GC/MS分析灵敏度的各种实验因素如萃取温度、平衡时间、被测组分浓度等进行了讨论。
    The react balance time no more than 10 minutes; The adsorption capacity can be obviously improved by reducing pH of the solution.
    该材料的吸附性能随溶液pH值的降低明显增强,并且吸附反应进行异常迅速(平衡时间不超过10分钟)。
    This paper describes the effect of gas\|liquid balance time,balabce temperature,sampling period on the result of quantitative analysis by method of static HSGC(Head Space Gas Chromatography),and poses some problems that should be further solved in qualitative analysis,quantitative analysis.
    本文用静态顶空气相色谱分析法研究了气液平衡时间、平衡温度、连续取样对定量分析结果的影响,得出了一些规律,并指出了定性定量分析中有待进一步解决的一些问题。
    The effects of fiber type, balance time, extraction temperature, stirring speed and ionic strength of medium on extraction efficiency of phthalic esters were investigated.
    详细研究了萃取头性质、萃取平衡时间、萃取温度、搅拌速度、介质离子强度等条件对萃取效率的影响 .
    The main conditions, such as temperature for oil bath, balance time, pressure for up-liquid and ratio for gas via liquid were discussed the optimum conditions were established.
    对顶空气相色谱法的主要条件、油浴温度、平衡时间、液上压力及气液体积比进行了讨论,确立了最佳测试条件。
    The adsorption behaviour of 90 Sr on porous borosilicate glass by statical method is studied. The adsorption ratio and adsorption balance time of 90 Sr on porous borosilicate glass are determined. The influence of such factors as adsorbent partical size, solid liquid proportion, pH value and the concentration of strontium carrier solution on adsorption ratio is observed.
    研究了 90 Sr在多孔高硅氧玻璃上的吸附行为 ,并测定了其吸附比和吸附平衡时间 ,观察了多孔玻璃粒度、固液比、液相 p H和 Sr载体溶液初始浓度对吸附比的影响 ,获得了吸附容量和吸附等温线。
    The balance time,speed and adsorption capacity was also studied. The results showed that the adsorption capacity varied with acidity,initial concentration and the dosage of adsorbent for humid acid to adsorb Ni(Ⅱ).
    试验研究了该腐植酸对Ni(Ⅱ )的吸附平衡时间 ,吸附速率 ,吸附量随pH值不同、初始浓度不同及吸附剂用量不同的变化情况。
    The different influencial factors during the determination were studied in detail. The optimal conditions of the measurements as followed: the determination wavelength was 525nm,the concentration of citric acid was 0 0143 mol/L,the ration between ethyl acetate and acetic anhydride was 75:25,the reaction temperature was 50℃ and the balance time was 50 min.
    对测定中的各种影响因素进行了系统研究 ,确定出最佳测试条件 :工作波长 5 5 3nm ,柠檬酸浓度 0 0 1 4 3mol/L ,反应介质中乙酸乙酯与乙酸酐的体积比为 75∶2 5 ,反应温度 5 0℃ ,平衡时间 5 0min。
 

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