亚硫酸钠

  • 网络Sodium Sulfite;sodium sulphite
亚硫酸钠亚硫酸钠
  1. 在亚硫酸钠存在下钌与5-Br-PADAP的显色反应

    A Study on the Colour Reaction of Ru with 5-Br-PADAP in the Presence of Sodium Sulphite

  2. 非培养条件下用耗氧剂亚硫酸钠模拟活细胞的代谢耗氧,当连续培养达到稳态时,供氧与耗氧达到平衡,CC值恒定,利用稳态时的有关数据能方便地计算出KLa值。

    The oxygen-consuming metabolism in the live cells is simulated with sodium sulphite under non-cultured conditions . The supply of oxygen is equal to the consumption , and the value of C / C ~ is invariable during the steady state of continuous culture .

  3. 亚硫酸钠对小鼠不同脏器的DNA损伤

    Damage Effects of Sulfite Sodium on DNA in Cells from Mice Various Organs

  4. 用连二亚硫酸钠还原法检测血浆中一氧化碳血(CO)的含量;

    Plasma carbon monoxide ( CO ) was detected according the method introduced by Chalmers .

  5. 白水浓度对DIP和TMP连二亚硫酸钠漂白的影响

    Effect of White Water Consistency on Sodium Hydrosulfite Bleaching of DIP and TMP Pulps

  6. 采用CCD对单个氧气泡在亚硫酸钠溶液中的吸收过程进行拍照,并用软件进行图像边界识别来研究单个纯氧气泡同亚硫酸钠溶液发生的强制氧化反应过程。

    The sole oxygen bubble in sulfite solution is observed by a CCD camera when measuring the reaction rate of sulfite oxidation .

  7. TMP连二亚硫酸钠漂白实践

    The practice of TMP sodium hyposulphite bleaching

  8. 介绍了纸机白水浓度对DIP和TMP浆连二亚硫酸钠漂白的影响;

    The effect of white water consistency on hydrosulfite bleaching of DIP and TMP pulps was introduced in this paper .

  9. 连二亚硫酸钠也能与KCN协同钝化NR。

    Dithionite and KCN also had synergistic inactivating effect on NR activity .

  10. Cr(VI)在用饱和亚硫酸钠预先还原为Cr(III)后,也可用该方法测定。

    Cr ( VI ) can be determined by this method after prior reduction to Cr ( III ) with saturated sodium sulphite in sulphuric acid .

  11. 通过改变摇瓶中液体容积和用机械搅拌、空气流量来调节供氧量,探讨了VC二步发酵中最适的供氧量,并用亚硫酸钠氧化法测定所用设备的供氧能力。

    The optimal oxygen supply during fermentation for two-step technology of vitamin C was investigated . The oxygen-supplying ability of the apparatus was measured with sulfite test .

  12. 介绍了TMP连二亚硫酸钠漂白系统的改进,对影响漂白效果的因素进行了分析。

    This article describes the improvement on the TMP sodium hyposulphite bleaching system and analyzes the factors affecting bleach-ing effect .

  13. 结果认为,将白水澄清和细小纤维再浮选,能使DIP和TMP浆连二亚硫酸钠漂白获得最好的效果,但具体采用哪种方案,要视纸机的运行情况而定。

    The results showed that white water clarification and fines flotation have the best response to hydrosulfite bleaching of DIP and TMP pulps .

  14. 结果表明,碱性亚硫酸钠法蒸煮脱木素率比较高(比NS法和HS法高,低于KP法)。

    The results show that the delignification rate is higher for alkaline sulfite cooking ( higher than NS and HS , lower than KP ) .

  15. SDS对PPO活力有激活作用;亚硫酸钠、柠檬酸、抗坏血酸、曲酸和托酚酮对PPO有不同程度的抑制作用。

    SDS activated PPO activity , sodium sulfite , citric acid , ascorbic acid , kojic acid and tropolone have different degrees of inhibition on PPO activity .

  16. 中和液的pH值控制在6.0左右时,中和液中的Na2CO3全部反应完全,并可生产出接近一级品的亚硫酸钠产品。

    The first-grade Sodium Sulfite can be produced when the pH value of the neutralization liquid is controlled at about 6.0 at which conditon the Na2CO3 will be fully reacted .

  17. 在利用Berthelot反应测定微生物发酵中铵离子浓度时,培养液中的亚硫酸钠严重干扰了测定结果。

    Sodium sulfite seriously interfered ammonium measurement in fermentation broth by Berthelot color reaction method .

  18. 其中对重氮化反应的温度,及由重氮盐还原成对一磺酰胺基苯肼时还原介质的PH值和亚硫酸钠用量等对反应及产率的影响。

    The effect of the factors , such as the temperature of diazotizing reaction , the PH value of the reaction medium during the reduction of diazonium salt to p-sulfonamido phenylhydrazines and the amount of sodium suifite , on the reaction and production is discussed .

  19. 无论采用什么方式的贮藏,对木薯呼吸机制均没有改变,沙藏可明显降低木薯的呼吸作用,其最高峰比半气调及亚硫酸钠处理的木薯最高峰低了50C02mg/(kg·h)。

    Regardless of what way the storage of cassava , the respiratory mechanisms are not changed . Sand storage can significantly reduce the respiration of cassava , the highest peak was 50 CO2mg / ( kg-h ) lower than half of atmosphere and sodium handling .

  20. 采用亚硫酸钠还原法制备了Cu2O光催化剂,并将其应用于含铬(Ⅵ)废水降解还原的光催化反应,同时与Bi2WO6、TiO2等光催化剂进行了活性比较。

    The Cu2O powder catalyst prepared through the method of sodium sulfite reduction was applied to the photocatalytic reduction of Cr (ⅵ) containing in wastewater .

  21. 采用锌盐和亚硫酸钠浸泡复绿法使其恢复天然绿色;采用加亚硫酸钠、调PH等方法,并使用漂烫技术,既可杀死微生物,又可以防止褐变;

    The reconstitution green method that Zinc salt and sodium sulfite are used to soak the wild celery to resume its natural green colour and add sodium sulfite to adjust the PH is adopted , the blanching technique is employed to kill microorganism and prevent its browning .

  22. 试验结果表明:低pH值、低温、避光、避免与铝铁金属离子接触、添加多糖类物质、添加亚硫酸钠能保护草莓色素并抑制PPO褐变;

    The experimental results were as follows : low pH value , low temperature , avoiding light and contact with the ion of aluminum and iron , adding polysaccharide and sodium bisulfite could better preserve strawberry pigment and restrain PPO from browning ;

  23. 用连二亚硫酸钠-柠檬酸钠-碳酸氢钠(DCB)法研究了去除土壤中的氧化铁后Al的吸附-解吸特征的变化情况。

    The adsorption and desorption of aluminum in two acidic soils was investigated . Under using technique of dithionite-citrate-bicarbonate ( DCB ), the change situation of Al adsorption-desorption characteristics after removal of Fe oxide in soil was studied .

  24. 研究了二氧化硫(SO2)衍生物&亚硫酸钠和亚硫酸氢钠混合物(分子比为3∶1),对小鼠心、肝、肺中蛋白质的氧化损伤作用,探讨其分子作用机制。

    To study the protein oxidative damage and its molecular mechanism induced by sulfur dioxide ( SO_2 ) derivatives including sodium sulfite and sodium bisulfite mixture ( 3 ∶ 1 , mol ) in hearts , livers and lungs of mice .

  25. 试验结果表明:浆的得率、浆中戊聚糖的含量随着亚硫酸钠与总碱的比数(均用Na2O计)的提高而增加,但浆的高锰酸钾值却呈N形变化。

    Results indicated that the yield of pulp and the pentosan content in the pulp increased with increment of the ratio of sodium sulfite to the total sodium ( all calculated as sodium oxide ), but the potassium permanganate value in the pulp changed in a " N " shape .

  26. 选出最佳的引发剂为过硫酸钾-连二亚硫酸钠,油水质量比为1.1∶1,采用分两次滴加27%和35%的丙烯酰胺(AM)的溶液,合成PAM的相对分子质量达16.6×10~6。

    The optimum initiator system is potassium persulfate-sodium dithionite . The ratio of oil to water is 1.1:1 , taking two steps to add 27 % and 35 % of acrylamide to flask , the molecular weight of polyacrylamide is 16.6 × 106 .

  27. 研究结果表明,测试时控制样品溶液温度低于5℃,滴定时间为15s,固定亚硫酸钠用量,所测得的游离甲醛量的误差很小。

    Results show that deviation level is very low under the conditions of sample temperature lower than 5 ℃, titration for 15 s at the fixed concentration of sodium sulfite .

  28. 详述了ADC生产中副产十水碳酸钠的开发利用途径,如在盐水精制中代替纯碱,生产纯碱,生产十二水磷酸氢二钠和磷酸三钠,生产亚硫酸钠。

    Pathes of developing and utilizing the natron by-product from the production of ADC are introduced in detail , which includes substituting for soda in the refinement of brine , producing soda , producing twelve-hydrated disodium hydrogen phosphate and trisodium phosphate , and producing sodium sulfite .

  29. 以H2O2漂白后的混合办公废纸脱墨浆为待漂浆,系统地研究了各种因素对保险粉(连二亚硫酸钠)漂白过程的影响。

    Sodium dithionite was used as a bleaching agent in the second stage bleaching of mixed office waste paper deinked pulp , which has been bleached with H 2O 2 in the first stage . Several parameters in sodium dithionite bleaching process were studied systematically .

  30. 用腹腔注射的方法对实验小鼠进行SO2衍生物(亚硫酸钠和亚硫酸氢钠,分子比为3:1)染毒,染毒剂量分别为0,0.025,0.100,0.400g/(kg·d),共染毒5d。

    The contaminative of SO2 derivatives ( sodium sulfite and sodium bisulfite molecular ratio of 3:1 ) was carried out on test mice , using abdominal cavity inject techniques ; the contamination doses were 0 , 0.025 , 0.100 , 0.400g / ( kg · d ) for 5 days .