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氨基钠

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Catalyst system of phosphotungstic acid and tartaric acid or phosphotungstic acid and 4-amino-antipyrine can be reused five times and the yield was still 93.1% and 80.6%, respectively.

磷钨酸-酒石酸钾钠和磷钨酸-4-氨基安替比林催化体系重复使用5次后,产率仍分别达到87.1%和80.6%。

Mainly engaged in sodium azide, barium azide, three phosphorus nitride Friday, phenyl isothiocyanate, 1 - phenyl -5 - mercapto-tetrazole, 4 - dimethylamino-pyridine, 2 - mercapto--5 -- methyl-1,3,4 thiadiazole, N-hydroxy phthalimide, anhydrous betaine and betaine hydrochloride, such as fine chemical raw materials and medicine, pesticide intermediates of the development, production and sales.

主要从事叠氮化钠,叠氮化钡,五氮化三磷,异硫氰酸苯酯,1-苯基-5-巯基四氮唑,4-二甲氨基吡啶,2-巯基-5-甲基-1,3,4噻二唑,N-羟基邻苯二甲酰亚胺,无水甜菜碱及甜菜碱盐酸盐等精细化工原料及医药、农药中间体的开发、生产和销售。

The function of shelter ing nitrite from sulfamic acid is compared with that from sodium azidum.

结果表明:海洋监测规范中COD的测定方法不适合于NO-2较高的污染海水,比较了氨基磺酸与叠氮化钠对NO-2的掩蔽效果及测定方法。

Twenty-eight new organophosphorus compounds were prepared by reaction of sodium thio- or dithiophosphates with α-chloroacylamides.

通过硫代磷酸酯钠盐同2-α-氯代乙酰氨基噻唑或其衍生物的缩合,合成了通式为Y(R=Me、Et、i-Pr;X=O、S;Y=H、NO_2、SCN、Cl、SEt)的新有机磷化合物28个。

Results:It is suggested that the drug significantly protectes liver from CCl4,thioacetamide and galactosamine in mice and rats,lowers the activity of enzyme ALT in serum,shorten the sleep duration of CCl4-damaged mice induced by embuter,inhibites HBsAg in vitro,and potentiates non-specific immunity in mice and rats.

结果:研究表明,该药对四氯化碳、硫代乙酰胺和氨基半乳糖引起小鼠及大鼠的急性肝损伤有明显的保护作用,能降低谷丙转氨酶;缩短CCl4肝损伤小鼠戊巴比妥钠的睡眠时间;抑制体外乙肝病毒表面抗原;对非特异性免疫有一定增强作用。

It was found that the content of γ-amino butyric acid in brown rice reached the maximum value after soaking for 4 hours at the ratio of brown rice and sodium glutamate 1 200 g/mol, and under the soaking!conditions of pH 5~6, Ca~ 2+ Conceutritio...

发现糙米在浸泡温度40~50℃,Ca2+浓度为0.5mmol/L,pH值为5~6,糙米与谷氨酸钠的比值为1200g/mol的浸泡液中浸泡4h后,其γ-氨基丁酸含量分别达最高。

The influence of MSG,ASA and the time of MSG addition on the accumulation of γ-aminobutyric acid in germinating brown rice was with single and orthogonal trial designs.

发芽糙米富含维生素A、B、E和矿质元素钾、钠、铁、锌,以及多种促进人体健康和防治疾病的成分,如γ-氨基丁酸、谷胱甘肽、肌醇和阿魏酸等,特别是GABA含量超过白米和糙米[1]。

METHODS:Ceftizoxime acid was prepared with 7-Amino-3-norcephem-4-carboxylic acid(7-ANCA)and AE-ester ceftizoxime acid as raw material;then ceftizoxime sodium was obtained through the reaction between ceftizoxime acid and sodium carbonate.

以粗品7-氨基-3-烷基头孢烷酸和AE活性酯为原料合成头孢唑肟酸,再与无水碳酸钠反应制得头孢唑肟钠;同时研究反应时间、乙醇用量和滴加时间、无水碳酸钠的用量以及pH值对产品质量的影响。

Methods The amino acids in the injections were pretreated with 6-aminoquinolyl-N-hydroxysuccinimdyl separately and their derivatives were analyzed on Waters 2695 HPLC using AccQ-Tag column. Gradient eluents consisted of sodium acetate solution (pH 4.95), acetonitrile and water. The Detection wavelength was 248 nm and column temperature 37℃.

采用AccQ-Tag法,以6-氨基喹啉-N-羟基琥珀酰亚胺基甲酸酯为衍生试剂,与复方氨基酸注射液(18AA-V)中17种氨基酸柱前衍生,用Waters 2695 HPLC仪器,AccQ-Tag柱,以醋酸钠(pH 4.95)缓冲液为流动相A,乙腈为流动相B,水为流动相C进行梯度洗脱,检测波长为248 nm,柱温为37℃,进样量为5μL。

By utilizing three benezenemulticarboxylate derivatives (H2chdc, H2aip, NaH2sip), we obtain 12 coordination polymers. Especially, compelexes 1 and 2 are based on one-dimensional ···OHInOHIn···chains as building units, while complex 3 is based on double four-ring [In8(μ2-O)4(μ2-H2O)8]16+, complex 4 is based on trinuclear In3(μ3-O)(CO2)6, complexes 11 and 12 are both based on nested bistranded helices.

选择了三类取代苯羧酸配体: 2,5-二羟基-1,4-对苯二甲酸(2,5-H2chdc); 5-氨基间苯二甲酸(5-H2aip); 5-磺酸基间苯二甲酸钠盐(5-NaH2sip)和InCl3反应合成了十二个配位化合物:其中1、2以···OHInOHIn···链为构筑单元, 3以双四元环[In8(μ2-O)4(μ2-H2O)8]16+为构筑单元,4以棱柱状三核铟In3(μ3-O)(CO2)6为构筑单元,而11、12以嵌套的双股螺旋链为构筑单元。

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