硫酸氢钠

用硫酸铝和硫酸氢钠降低燃煤电厂灰水pH值的试验研究

Experimental study on pH reduction of ash sluicing water with aluminium sulphate and sodium bisulfate in coal - fired power plant

方法用亚硫酸氢钠修饰变性后的被测DNA，随之进行甲基化、非甲基化特异的PCR扩增。

Methods The denatured target DNA was modified by sodium bisulfate , which converting all unmethylated , but not methylated , cytosines to uracils , and then was amplified with primers specific for methylated versus unmethylated DNA .

ICP-AES仪同时测定亚硫酸氢钠中微量铁、砷和铅

Determination of Fe , As and Pb in Sodium Bisulphite by Icp-Aes

本文基于维生素K3（亚硫酸氢钠甲萘醌）或甲萘醌在碱性介质中与氨基硫脲生成紫色化合物的反应。

The method was based on the reaction of the vitamin K_3 ( menadione sodium bisulfite ) or menadione with thiosemicarbazide to form an violet compound in alkaline medium .

亚硫酸氢钠修饰基因组DNA，甲基化特异性PCR（MSP）检测各启动子的甲基化状态。

The genomic DNA extracted from tissue specimens and cell lines were modified by bisulfite sodium and determined by methylation specific PCR ( MSP ) .

利用Discover微波精确有机合成系统，采用单膜聚焦微波辐射技术及电脑微控和空压气体同步冷却技术，以一水合硫酸氢钠为催化剂，研究了对羟基苯甲酸正丁酯的合成。

Using Discover microwave organic chemistry rigour system , single-mode focused microwave irradiation technology and micro computer control , n-butyl p-hydroxybenzoate was synthesized with sodium bisulfate monohydrate as catalyst .

认为氨基磺酸、强酸性阳离子交换树脂、一水硫酸氢钠、固体超强酸、杂多酸和维生素C是在合成对羟基甲酸丁酯中具有实用价值的催化剂。

It is suggested that amino sulfonic acid , strongly acidic cationic exchange resin , sodium sulfate monohydrate , solid super acid , heteropolyacid and Vitamin C are valuable catalysts in practice for synthesizing p-hydroxyl butyl benzoate .

以水为溶剂，亚硫酸氢钠和过硫酸钾为引发剂，合成了N羧甲基N，N二甲基N烯丙基氢氧化铵内盐&丙烯酰胺（AA）两性共聚物；

Finally CDAH / acrylamide ( AA ) amphoteric copolymer was prepared in aqueous solution with sodium hydrogen sulfate ( NaHSO 3 ) and potassium persulfate ( K 2S 2O 8 ) as initiators .

研究结果表明，硫酸氢钠的催化活性良好；当0.4mol乙二醇，0.02mol硫酸氢钠，反应2h，产品收率达67%。

The results showed that the yield was 67 % under 0.4 mol ethanediol , 0.02 mol sodium bisulfate , reaction time is 2h .

目的研究次硫酸氢钠甲醛对小鼠海马神经胶质酸性蛋白（GFAP）表达的影响。

Objective To study the influence of formaldehyde sulphoxylate on the expression of glial fibrillar acidic protein ( GFAP ) in mice hippocampus .

采用苯胺滴加的方法、FTIR的研究方法，验证亚硫酸氢钠封闭异氰酸酯的反应的可行性，并进一步考证了用DSC方法得到的解封闭温度的正确性。

The analytic results by DSC were verified by aniline titration analysis and FTIR analysis , which further indicated that it was available to block isocyanate by sodium bisulfate .

第四部分：首先以过硫酸钾、亚硫酸氢钠为引发剂，水为溶剂的体系中合成了聚丙烯酸（PAA）。

Part four consisted the following points : Firstly acrylic acid was polymerized by choosing potassium persulfate and bisulfite natrium as initiator and water as solvent .

微乳液中加入少量有机酸酯（NZ）和亚硫酸氢钠（NS），可有效降低泛黄性，且不增加成本、不降低柔软性。

Adding a little of NZ and NS in microemulsion , the nature of its yellowing is considerably reduced with no concerns of increasing cost and decreasing softness .

结果表明：在同样浓度和处理条件下，亚硫酸氢钠比亚硫酸钠具有较好的防止对虾黑变的效果，对虾在冻藏过程中，体内SO2残留量逐渐消减。

The results showed that sodium hydrogen sulfite could prevent the prawns more efficiently from blackening than sodium sulfite at the same processing conditions . SO2 residue in prawn reduced gradually under cooling conditions .

紫外分光光度仪检测DNA浓度，选用OD260/OD280值大于1.75的样品。采取强碱变性、亚硫酸氢钠/对苯二酚法处理DNA后，用层析柱过柱除盐。

DNA concentration and purity were tested by Ultraviolet spectrum , the sampled OD 260 / OD280 value was larger than 1 . 75 . DNA was denatured by strong base and then treated with Sodium Bisulfate / benzenediol , and salt were eliminated through chromatogra-phy column .

以丙酮、甲醛和亚硫酸氢钠为主要原料合成了水溶性磺化丙酮-甲醛缩合物（SAF）。

Water soluble sulfonated acetone formaldehyde ( SAF ) resins were synthesized by using acetone , formaldehyde and sodium bisulfite as starting materials .

Beagle犬静脉注射亚硫酸氢钠穿心莲内酯后的药动学行为符合二室模型。

After intravenous injections of 50 , 40 , 20 mg · kg - 1 of andrographolide sodium bisulphite in beagle dogs , the concentration-time curve was fitted to a two compartment model .

提取基因组DNA，亚硫酸氢钠修饰，巢式聚合酶链反应（nestedPCR）加甲基化特异性PCR（MSP）检测IGF-II基因启动子P3的甲基化状态，PCR产物经克隆、测序验证。

The genomic DNA were extracted and modified by bisulfite sodium , the methylation at promoter P3 of IGF-II were detected by means of nested polymerase chain reaction ( nested PCR ) and methylation specific PCR ( MSP ), then sequencing .

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 .

结果表明：亚硫酸氢钠的脱氯效果最好，反应10min，氯脱除率即达100%；

The results showed that , Dechlorination performance of sodium hydrogen sulfite was best . At 10 min reaction time , rate of dechlorination was 100 % .

当苯甲酸、乙醇和硫酸氢钠的质量配比为1∶8∶086，回流8h时，酯收率达93%。

The yield of the ester could reach 93 % under amount of substance ratio of benzoic acid , ethyl alcohol and sodium bisulfate were 1 ∶ 8 ∶ 0.86 , time of refluxing was 8h .

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 .

试验表明，当被测液pH值为5～6，在反应温度为10℃以下加入适量的新配制的亚硫酸氢钠，反应20min以上，然后用碘液滴定，测定结果较为准确。

The experiment showed that the determination results titrated by iodine were correct when pH was 5 ~ 6 , reaction temperature was 0 ~ 10 ℃, the reaction time was above 20 minutes after the fresh solution of sodium hydrogen sulfite was added .

当没食子酸、正丁醇和硫酸氢钠的物质的量比为1：15：0.034，回流分水5h，酯收率达92.3%。

The yield of the ester could reach 92.3 % under amount of substance ratio of gallate acid , n butyl alcohol and sodium bisulfate were 1 ∶ 15 ∶ 0.034 , refluxing and water segregation for 5 h.

最佳的护色剂组合为0.005%亚硫酸氢钠+0.1%柠檬酸+0.02%EDTA，经过0.5h的平衡后进行腌制。

And the relative optimum color retention treatment was : using sodium bisulfite 0.005 % , citric acid 0.1 % and EDTA 0.02 % as the color retention agents and equilibrating for half an hour .

以亚硫酸氢钠甲萘醌（MSB）和烟酰胺为原料，在常温下合成了稳定型维生素K3（MNB）并对影响反应的因素进行了考察。

Using menadione sodium bisulfite ( MSB ) and nicotinamide as raw materials , effects of reaction conditions on synthesis of menadione nicotinamide bisulfite ( MNB ) at room temperature were investigated .

结果表明，没食子酸、正丙醇和硫酸氢钠摩尔比为1∶14∶0.058，反应时间5h是最佳的反应条件，酯收率达93.8%。

The optimal reaction conditions were determined as follows : the molar ratio of gallic acid / n-propyl alcohol / sodium bisulfate was 1 / 14 / 0.058 , in the reaction of 5 h a propyl gallate yield of about 93.8 % could be obtained .

实验结果表明：酯化反应的优化条件为邻苯二甲酸、正丁醇、硫酸氢钠物质的量比为1：2.6：0.22，反应时间1.5h。产率可达94.24%。

Experimental results indicated that the optimum conditions of esterification reaction are the molar ratio of o-phthalic acid , n-butyl alcohol and sodium hydrogen sulfate 1:2 . 6:0 . 22 , the reaction time 1 . 5 h , and the yield up to 94.24 % .

方法以009mol乙醇和003mol对硝基苯甲酸为原料，06g硫酸氢钠为催化剂，在反应温度78～80℃，反应时间3h条件下合成对硝基苯甲酸乙酯。

Methods : Ethyl p-nitrobenzoate was synthesized with alcohol 0.09 mol and p-nitrobenzoate acid 0.03 mol as the raw materials , sodium bisulfate 0.6 g acted as the catalyst , with the temperature of reaction at 78 ~ 80 ℃, and the time of reaction for 3 h.

利用单体化合物稳定同位素（CSIA）技术研究了甲醛合次硫酸氢钠（HMSNa）与半胱胺衍生化过程的同位素效应，探讨了半胱胺衍生化法测定大气甲醛碳同位素的可行性。

The isotope effects of HOCH_2SO_3Na ( HMSNa ) derivatization and cysteamine were preliminary studied by compound-specific isotope analysis ( CSIA ) . The feasibility for the determination of isotopic composition of atmospheric formaldehyde was discussed .