| 1. | Preparation of nafion coated solid - phase microextraction fibers and its use in gc analysis
涂层固相微萃取探头的制备 |
| 2. | ( 4 ) nafion film has the function of enriching nitric oxide and also the mechanism was discussed
Nafion膜具有富集no的作用，探讨了nafion膜富集no的机理。 |
| 3. | The specimen in the experiments was manufactured with nafion - 117 ( dupont ) deposited two times with platinum
Ipmc试样是以nafion - 117薄膜为基底材料利用化学方法沉积pt离子制备的。 |
| 4. | The features of modified electrode were investigated by cyclic voltammetry and the assay conditions were optimized . the modified electrodes were further covered with nafion membrane that could erase the interference
和cll的三种铁氰酸盐修饰电极的性能及电化学特性，并研究了各种实验条件对过氧化氢传感器性能的影响。 |
| 5. | In the straight dripping method , the function of the selectivity film could be exerted as well when 2ul5 % nafion was dripped to the electrode surface , ( 3 ) the selectivity of the electrode was also studied
直接滴加法中在电极表面滴加2 l5的nafion溶液时，可以最好的起到选择性膜的作用，达到对no测定的最好效果。 |
| 6. | Nafion covering at the electrode surface as cation exchange resin could effectively prevent the disturb by some impurity ion as nitrite ion accordingly achieve the good selectivity of nitric oxide
探讨了nafion电极的选择性， nafion作为阳离子交换树脂覆盖在铂电极表面，能有效阻隔海水中的杂质离子如no _ 2 ~ -离子的干扰，从而达到对no的良好选择性。 |
| 7. | For the pemfc cathode , besides above the parameters , the effects of the thickness of the reaction layer , the ion conductivity of nafion electrolyte and the electronic conductivity in carbon phase of the reaction layer on the electrode performance have also been investigated
在对pemfc阴极的研究中，除了以上参数以外还考虑了反应层厚度， nafion ~ ( ? )电解质的离子传导率以及反应层中碳相传导率对电极性能的影响。 |
| 8. | ( 2 ) two methods including the adsorption method and the straight dripping method were used to modify the platinum electrode . in the adsorption method , the time of the electrode adsorption is 7s ; there is no curve if the time is too short and the curve appearing when the time is 5s
用两种方法对电极进行nafion修饰，即吸附法和直接滴加法，对吸附法确定了电极吸附nafion的时间为7s ，时间太短无峰出现，吸附5s后有氧化峰出现。 |
| 9. | The experimental results demonstrate that the suitable mea hot - pressing temperature and pressure are 120 and 15 . 5mpa , respectively . the optimum catalyst loading in anode is 4 mg pt / cm2 , and the best contents of nafion ionomer in anode and cathode layer are 45wt % and 35 . 3wt % , respectively
实验结果显示，制备膜电极时最佳的热压温度和压力分别为120和15 . 5mpa ；阳极催化剂的适宜载量为4mgpt / cm2 ；阳极和阴极催化剂层的nafion最优含量分别为45 . 0wt %和35 . 3wt % 。 |
| 10. | The membrane properties were found to be dependent upon the content of styrene . the membrane physic - chemical properties compare to nafion 117 except that their chemical stability has to be further improved to make them acceptable for practical use in the proton exchange membrane fuel cell . the proton transport through the membrane follows the " liquid - like " proton conductivity mechanism y and the water balance is important for the working condition of the fuel cell
对磺化膜的研究分析表明：膜的性能参数如离子交换容量、吸水率、水合系数、形体稳定性、导电性能、化学与热稳定性等依赖于膜中苯乙烯含量，且接枝苯乙烯相互间的位阻效应对膜性能影响很大；膜的性能可与nafion膜相比较；质子在膜中的传导遵循“似液体”质子传导机理；电渗析与扩散作用使膜保持水平衡。 |
