查询词典 sodium acid l-glutamate

In the medium of 0.013 mol/L H2SO4, phosphate reacts with sodium molybdate and potassium antimonyl tartrate, forming a yellowish phosphorus-antimony-molybdenum heteropoly acid. The acid exhibited a strong resonance scattering peak at 710 nm after added with nanogold. The heteropoly acid was reduced by ascorbic acid to antimony phosphomolybdate blue, which caused the decrease of resonance scattering intensity.

在0.013mol/L H2SO4介质中，磷酸根与钼酸钠、酒石酸锑钾反应生成淡黄色的磷锑钼杂多酸，加入纳米金后在710nm处产生一个较强的共振散射峰，抗坏血酸可将磷锑钼杂多酸还原为磷锑钼蓝，导致710nm处共振光散射信号降低。

The total chemical oxygen demand of 325mg/L was composed of 175 mg/L casein, 90 mg/L starch, 30 mg/L capric acid, 15 mg/L of glycerol, and 15 mg/L sodium acetate.

总的化学需氧量COD325mg/L，由175 mg/L酪蛋白，90 mg/L淀粉，30 mg/L富氧酸，15 mg/L甘油，15 mg/L醋酸钠组成。

After esterification, the ethyl-2-chloro-3-phenylpropionate reacts with diethyl malonate under the catalysis of sodium ethylate, and we obtain the corresponding triethyl ester. The-benzylsuccinic acid is formed by the triethyl ester reacting with concentrate hydrochloric acid and taking place hydrolyzation and decarboxylation reaction at the same time. In order to avoid the formation of cinnamic acid, the sodium ethylate and diethyl malonate must be react sufficiently. The course has simple operation, inexpensive materials and better yield.

具体制备工艺为：首先以L-苯丙氨酸为原料采用重氮化方法得到-2-氯-3-苯基丙酸，再经酯化得到-2-氯-3-苯基丙酸乙酯后在乙醇钠催化作用下和丙二酸二乙酯缩合，发生SN2反应，得到相应的三乙酯，然后经水解和脱羧，得到-苄基丁二酸；在实验中乙醇钠要和丙二酸二乙酯充分反应，避免生成肉桂酸乙酯；该过程操作简单，原料便宜，产率较高，总收率可达到26.8%。

The electrolyte buffer for the anion separation consisted of 40 mmol/L boric acid -1.8 mmol/L potassium dichromate -2 mmol/L sodium tetraborate (pH 8.6), and tetramethyl ammonium hydroxide was used as electro-osmotic flow modifier.

阴离子测定采用的缓冲体系为40mmol/L硼酸-1.8mmol/L重铬酸钾-2mmol/L硼酸钠(pH8.6)，氢氧化四甲铵为电渗流改性剂，5种阴离子在4.6min内达到基线分离，检出限为0.10~1.85mg/L。

Chitosan had been modified by polyacrylate sodium, glularaldehyde, and NaBH4, respectively, which afforded three kinds modified chitosan: polyacrylate sodium modified chitosan (CIS- PA4) chitosan bead and pentamethylene diamido crosslinked chitosan bead (CTSB- G- Hy). The adsorption properties of CTS-CTSB and CTSB-G-Hy were studied by L25(56) orthogonal experimental design. They show high adsorption activities for Pb2+ in solution. The highest removal efficiency of Pb2+ for CTS-PA4, CTSB and CTSB-G-Hy is 94%, 96% and 93%, respectively. The results showed the adsorption property of CTSB is the highest. The CTSB- G- Hy has good mechanical property, acid-resistance and alkali-resistance.

第二部分壳聚糖的改性及其对水溶液中铅离子的吸附性能研究以壳聚糖为原料制备了三种改性吸附剂——聚丙烯酸钠改性壳聚糖(CTS——PA_4)、珠状壳聚糖凝胶树脂和戊二氨交联珠状壳聚糖凝胶树脂，着重考察了CTSB—G—Hy的制备条件，并考察了三种吸附剂吸附6.3mg/L铅离子水溶液中铅的最佳使用条件，结果表明对CTS—PA_4而言当pb~(2+)溶液的pH在4～6.5之间，吸附剂用量为5g/L，吸附时间为1h时pb~(2+)去除率高于94％，CTS—PA_4可在酸性条件下使用，在碱性条件下依然有效但处理效果较差；CTSB对pb~(2+)具有很好的吸附能力吸附剂用量为5g/L，吸附时间为1h时处理效果极佳，pb~(2+)去除率高于96％；CTSB—G—Hy对pb~(2+)具有一定的吸附能力，吸附剂用量为3g/L，吸附时间为1.5h时处理效果最佳，Pb~(2+)去除率高于93％，而且CTSB—G—Hy的机械强度高，耐酸碱性强，可在较宽的pH范围内使用。

The concentrations of insulin are 0,10~(-9)mol/L, 10~(-8)mol/L, 10~(-7)mol/L; the concentrations of Sodium vandate are 0,10μmol/L,25μmol/L,50μmol/L; the concentrations of AG1024 are 0,1μmol/L, 10μmol/L, 100μmol/L; the concentrations of ursolic acid are 0, 10~(-7)mol/L,10~(-8)mol/L,10~(-9)mol/L.

胰岛素的浓度为0、10~(-9)mol／L、10~(-8)mol／L、10~(-7)mol／L；钒酸钠的浓度为0、10μmol／L、25μmol／L、50μmol／L；AG1024的浓度为0、1μmol／L、10μmol／L、100μmol／L；熊果酸的浓度为0、10~(-7)mol／L、10~(8)mol／L、10~(-9)mol／L。

Results: Solution concentration range depended on 0.5~50 mg/L lineaity, relation fine, the relevance modulus amounted to 0.999 without exception. The soursulfan acet ophenetidin ilamide potassium, benzoic acid, dehydro aectic acid, sorbic acid, saccharin sodium minium inspects up out tickness being 0.062, 0.074, 0.066, 0.370, 0.105mg/L The standard deviation was smaller than 5.0%. The additive hit hack rate was 96.8% in drink pickle and the nature bean product fermenting 101.6%.

结果：本方法测定食品中5种添加剂，溶液浓度范围在0.5~50mg/L线性关系良好，相关系数均达0.999；乙酰磺胺酸钾、苯甲酸、脱氢乙酸、山梨酸、糖精钠最小检出浓度分别为0.062，0.074，0.066，0.037，0.105mg/L；标准偏差均小于5.0%；饮料、酱菜和发酵性豆制品中添加剂的回收率为

The HPLC method has been used to investigate the stability of etimicin in 0.9% sodium chloride, 5% glucose, 10% glucose, compound sodium chloride, glucose sodium chloride and so on. In the experiment, the ODS-C18 column (4.6mm×250mm), mobile phase: methanol/water/acetic acid=80/16/4 (containing heptane sulfonic sodium 0.02mol/L), UV detection with wavelength of 330nm were employed. After integrating each of the menstruums with etimicin, the content and pH value were measured after 1h, 2h, 4h, 6h and 8h at a temperature of 17, 25 and 35℃, respectively.

实验采用HPLC法，以C18柱为色谱柱，CH3OH：H2O：HAc=80：16：4（含0.02mol/L庚烷磺酸钠）为流动相，检测波长330nm；对依替米星在生理盐水，5%葡萄糖，10%葡萄糖，复方氯化钠，葡萄糖氯化钠等溶媒中进行了稳定性研究，在室温(17℃)，25℃，35℃情况下，将依替米星与不同的溶媒配伍后，在1h，2h，4h，6h，8h分别测定它们的含量及pH值。

Demineralise Whey*, Vegetable Oils, Skimmed Milk Powder*, Lactose, Dietary Fibres (Galacto-oligosaccharides*, Polyfructose), Fish Oil, Potassium Citrate, Calcium Chloride, Calcium Carbonate, Sodium Citrate, Magnesium Chloride, Vitamin C, L-arginine, Emulsifier, Taurine, Iron Sulphate, Vitamin E, Citidine 5'-monophosphate, Zinc Sulphate, Adenosine 5'-monophosphate, Uridine 5'-monophosphate, Inosine 5'-monophosphate, Niacin, Guanosine 5'-monophosphate, Folic Acid, Copper Sulphate, Vitamin a, Vitamin B12, Pantothenic Acid, Biotin, Beta-carotene, Vitamin D3, Thiamin, Vitamin B6, Manganese Sulphate, Potassium Iodide, Vitamin K1, Sodium Selenite.

无矿物质乳清*，植物油，脱脂奶粉*，乳糖，膳食纤维（半乳糖寡糖*，多聚果糖），鱼油，柠檬酸钾，氯化钙，碳酸钙，柠檬酸钠，镁，氯，维生素C，L -精氨酸，乳化剂，牛磺酸，硫酸亚铁，维生素E，Citidine 5'-磷酸，硫酸锌，腺苷5'-磷酸尿苷5'-磷酸肌苷5'-磷酸，烟酸，5'-鸟苷磷酸，叶酸酸，硫酸铜，维生素A，维生素B12，维生素B3，维生素H，β-胡萝卜素，维生素D3，硫胺素，维生素B6，硫酸锰，碘化钾，维生素K1，亚硒酸钠。

Hydrolysed Whey Protein Concentrate*, Vegetable Oil, Glucose Syrup, Starch, Dietary Fibres (Galacto-oligosaccharides*, Polyfructose), Calcium Phosphate, Calcium Chloride, Potassium Hydrogen Phosphate, Vitamin C, L-arginine, Taurine, L-histidine, Iron Sulphate, Choline Chloride, Zinc Sulphate, Vitamin E, Inositol, L-carnitine, Niacin, Pantothenic Acid, Folic Acid, Copper Sulphate, Vitamin a, Manganese Sulphate, Beta-carotene, Biotin, Vitamin D, Thiamin, Vitamin B6, Riboflavin, Potassium Iodide, Vitamin K, Sodium Selenite.

水解乳清蛋白浓缩物*，植物油，葡萄糖浆，淀粉，膳食纤维（半乳糖寡糖*，多聚果糖），磷酸钙，氯化钙，磷酸氢二钾，维生素C，L -精氨酸，牛磺酸，L -组氨酸，硫酸亚铁，氯化胆碱，硫酸锌，维生素E，纤维糖，左旋肉碱，烟酸，维生素B3，叶酸，硫酸铜，维生素A，硫酸锰，β-胡萝卜素，维生素H，维生素D ，硫胺素，维生素B6，核黄素，碘化钾，维生素K，亚硒酸钠。

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Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。