查询词典 sodium

Alkyl balides react with sodium borohydride and selenium in the presence of solid sodium hydroxide to give dialkyl selenides in excellent yields.

在固体氢氧化钠存在下，卤代烃及用氢化钠与硒粉作用，在乙醇溶液中制得二烃基硒醚。

Methods: The protein and other impurity in the sample were precipitated by zinc acetate and potassium ferrocyanide after dipping of the sample. N,N-dichlorocyclohexylamine derived from sodium cyclamate by sodium hypochlorite in the filtrate was extracted by hexane. The HPLC separation was carried out with a phenomenex Gemini-C18 column using acetonitrile-water(7+3) or methanol-water (8+2) as mobile phase and detected by UV monitor at 314 nm. External standard method was used for quantification.

样品中甜蜜素浸提后，用乙酸锌和亚铁氰化钾试剂沉淀蛋白质等干扰杂质，过滤，用次氯酸钠将样品溶液中的甜蜜素转化为N，N-二氯环己胺经正己烷萃取后，在phenomenex Gemini-C18柱上，以乙腈－水(7+3)或甲醇－水(8+2)为流动相进行分离，HPLC-UV检测器在314 nm测定，外标法定量。

A comparison of the degradation effectiveness of PVA by potassium ferrate, sodium hypo-chlorite and combination of them was studied. The effects of potassium ferrate and sodium hypochlorite dosage, oxidation time, initial concentration of PVA and pH on removal rate of PVA were explored.

文章比较了高铁酸钾、次氯酸钠、高铁酸钾与次氯酸钠联用对PVA的降解效果，考察了高铁酸钾和次氯酸钠的投加量、氧化时问、PVA溶液的pH值和初始质量浓度对PVA去除率的影响。

Iodine in the test solution was oxidized to IO-3 by excessive amounts of potassium permanganate solution and sodium hypochlorite solution,and excess of the oxidants was removed by reacting with sodium sulfite solution.

采用过量联合氧化剂高锰酸钾-次氯酸钠氧化试液中碘至IO3-，剩余的高锰酸钾和次氯酸钠用过量的亚硫酸钠反应除去，利用IO3-的电活性，建立了在四硼酸钠-吐温-80底液中的线性扫描伏安法测定微量碘的方法。

The results show that the degradation effectiveness of PVA was optimum when potassium ferrate and sodium hypochlorite were jointly used as the oxidative agent. The removal rate of PVA and COD was more than 98% and 40% under the conditions that the concentration of PVA was 3.0 g/L and the pH value was 7.2, the dosage of potassium ferrate and sodium hypo chlorite were 0.32 g/L and 3.92 g/L, and the reaction time was 50 min. In the process of united oxidative degradation, the chain of PVA was cut off and many low molecular weight compounds were formed. The main degradation products were carboxyl compounds.

结果表明，用高铁酸钾与次氯酸钠联合氧化PVA时，降解效果最佳；在3.0 g/L，pH值为7.2的PVA溶液中，当高铁酸钾与次氯酸钠的投加量分别为0.32 g/L、3.92 g/L，反应时间为50 min时，PVA的去除率大于98%，COD去除率大于40%；在联合氧化降解过程中，PVA断链成小分子物质，最终降解产物主要为羧基化合物。

In 1L semi-continuous tank reactor,researches the effects of sodium dodecylsulfate,potassium oxalate,mixture of sodium dodecylsulfate and potassium oxalate on formation process of methane hydrate .

在1L的半连续搅拌槽式反应器中，研究了添加剂十二烷基硫酸钠、草酸钾和草酸钾与十二烷基硫酸钠复合对甲烷水合物生成过程的影响。

Methods Twenty whole blood specimens of volunteers collected in tube containing three series:sodium heparin as anticoagulant were treated with glyceraldehydes and normal saline respectively, potassium oxalate as anticoagulant were treated with sodium fluoride.

由于离体全血标本中细胞仍在不停地糖酵解，在标本运转、放置、处理过程中会引起血葡萄糖浓度下降和乳酸浓度升高，使血糖和乳酸的浓度在测定前已经发生变化。

The invention discloses a convenient, rapid manufacturing method of Chinese libanom sausage, which comprises the following steps: 1 preparing pickling agent with 2% salt, 0.3% calcium chloride, 0.45% composite phosphate, 15-18g/100kg beef sodium nitrite, 170-180g/100kg beef sodium nitrite, 2 allocating condiment material with 100kg mother beef, 450-550g salt, 3.5-4.5kg sugar, 450-550g mustard, 0.8-1.2kg ginger and garlic (1: 1), 32-38g meat, 350-450g white pepper powder, 180-220g chili powder and 650-680g cumin powder, 3 cutting beef into blocks, pickling for 5-6 days, fermenting at 43 deg.c for 1-2 days, controlling moisture at 80-90% to reduce at 50-70% within 3-4 days, stopping manufacturing when the weight loss is 20-30%.

内容包括：1以占牛肉重量2％比例的食盐、0.3％的氯化钙和0.45％的复合磷酸盐与15～18g/100千克牛肉的亚硝酸钠、170～180g/100千克牛肉的硝酸钠构成中式黎巴嫩香肠加工用腌制剂。2中式黎巴嫩香肠的香辛料配方为母牛肉：100kg、食盐450～550g、糖3.5～4.5kg、芥末450～550g、姜蒜(1∶1)0.8～1.2kg、肉蔻32～38g、白胡椒粉350～450g、辣椒粉180～220g、孜然粉650～680g.3中式黎巴嫩香肠加工工艺特点为，将发明的腌制剂涂抹于卫生安全牛肉修割切块表面，腌制时间为5～6天；发酵加工温度条件为：43℃，发酵加工1-2天内湿度控制在80％～90％，在3-4天下降为50～70％，当失重为20％～30％的时候结束加工。

Methods of test for orthoboric acid, diboron trioxide, disodium tetraborates, sodium perborates and crude sodium borates for industrial use - Determination of iron soluble i

工业用原硼酸、三氧化二硼、四硼酸二钠、高硼酸钠和粗硼砂的试验方法。溶于粗硼砂中碱性介质

Na2SAMG:zinc was combined with sodium sulphide perfusion; ZnSeAMG:zinc was combined with injection sodium selenite in advanced;iZnSAMG:the animal's fresh tissue immersed in the Timm's immersion fluid.

自从Timm引入了&某些金属硫化物可以通过物理显影被银放大&的观念，许多科学家应用了这一方法，并试图改进这一技术，而且已经发现了新的可以被银放大的金属微晶。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。