Synthesis of acetyl salicylic acid with sodium benzoate as catalytic; 合成乙酰水杨酸乙酯并评价其体外抗菌活性。
The antibacterial activity of sesamin was remarkable compared with sodium benzoate at the same concentration. 芝麻素的抗菌作用优于同浓度的苯甲酸钠。
Study on Sodium Benzoate on Fresh-keeping Effect of Cut Flower 苯甲酸钠对切花瓶插效果的影响研究
A Comparative Study on Two Ultraviolet Spectrophotometry Methods for Simultaneous Determination of Sodium Benzoate and Potassium Sorbate in Fruit-flavored Beverages 两种吸收光度法同时测定果味饮料中苯甲酸钠和山梨酸钾含量的比较研究
In the acid drink, sodium benzoate is converted to benzoic acid, which is more effective as a preservative. 在酸性饮料中,苯甲酸钠转化为苯甲酸,后者是更为有效的防腐剂。
Determination of sodium benzoate in milk powders by the infrared difference spectrophotometry. 本文采用红外示差光谱定量分析奶粉中苯甲酸钠的含量。
Objective To research the curative effect and nursing methods of potassium permanganate solution on the newborn babies running sores. Analysing Sodium Benzoate, Potassium Sorbate and Saccharin Sodium at the Same Time Using the Internal Standard Method of HPLC 目的探讨高锰酸钾溶液用于治疗新生儿脓疱疮的疗效及护理措施。高效液相色谱内标法同时测定苯甲酸钠、山梨酸钾、糖精钠的研究
The effect of sodium benzoate and potassium sorbate on the shelf life of canned pineapple containing high concentrate sug ar has been studied in this paper. 研究了苯甲酸钠、山梨酸钾两种防腐剂对糖水菠萝罐头在短期内的防腐效果。
Analysing Sodium Benzoate, Potassium Sorbate and Saccharin Sodium at the Same Time Using the Internal Standard Method of HPLC 高效液相色谱内标法同时测定苯甲酸钠、山梨酸钾、糖精钠的研究
Development of sodium benzoate detection in sauce by GC-MS as a teaching experiment 将酱油中苯甲酸钠含量的测定设计为GC-MS联用教学实验的探讨
The synthesis of benzyl benzoate from sodium benzoate and benzyl chloride by phase transfer catalysis process is studied in the article. 由苯甲酸钠和氯化苄通过相转移催化法合成了苯(甲)酸苄酯,考察了几种季铵盐类相转移催化剂的亲核取代反应性能。
Citric Acid to reduce the PH level, Potassium Sorbate to stop mould and Sodium Benzoate as an antimicrobial agent. 使腐剂柠檬酸,目低PH值山梨酸钾,便霉。种苯甲酸钠,种杀菌剂。
N-Butyl benzoate was synthesized with sodium benzoate and n-butyl bromide as starting materials through nucleophilic substitution reaction in the presence of catalyst of tetrabutyl ammonium bromide under microwave irradiation. 研究了在四丁基溴化铵催化下,采用微波辐射由苯甲酸钠和溴代正丁烷发生亲核取代反应合成苯甲酸正丁酯。
The quantity determination method of sodium benzoate by fluorescence spectrometry and standard additional method was established and the quantity contained sodium benzoate in one of the drink was determined. 建立了荧光光谱标准加入法测定苯甲酸钠含量的方法,并测定了一种饮料中苯甲酸钠的含量。
Benzyl Benzoate was directly synthesized from benzyl chloride and sodium benzoate under the condition of microwave irradiation and phase transfer catalyst without any organic solvent and inorganic carrier. 采用微波辐射反应技术,利用相转移催化剂,将苯甲酸转化为苯甲酸钠后,在无有机溶剂和无机载体的条件下与氯化苄直接酯化合成苯甲酸苄酯。
Improving the yield and quality of pentaerythritol and sodium benzoate by ameliorating the analysis methods and optimizing technologic parameters was discussed. 本文从分析方法的改进和工艺参数的优化,就提高季戊四醇和甲酸钠的产品产量和质量方面作了一些探讨,主要探讨了原料甲醛;
The method may determine the content of sodium benzoate in inosine injection at the same time. 本法还可测定注射液中苯甲酸钠的含量。
Aromatic esters were effectively synthesized with sodium benzoate and halohydrocarbons via microwave irradiation without any organic solvent and inorganic carrier. 苯甲酸钠和卤代烃在无有机溶剂和无机载体的条件下经微波辐射简便、快速、有效地合成了芳香酯。
Effects of Sodium Benzoate and Citric Acid on Preservation of Orange Juice 苯甲酸钠/柠檬酸对甜橙汁保藏的影响
H2O2 and Sodium benzoate of different concentration have serious influence to the pigment of Black currant of fruit juice. 不同浓度的氧化剂H2O2、防腐剂苯甲酸钠对黑加仑果汁色素均都有严重的破坏作用。
Al3+, Mg2+, Sn2+, sugar, NaCl and sodium benzoate have hyperchromic effects. 而Al3+、Mg2+、Sn2+离子,蔗糖,食盐和苯甲酸钠则有不同的增色作用。
The results indicate that sodium benzoate, ammonium benzoate, cinnamic acid inhibited anodic process significantly. 结果表明:苯甲酸钠、苯甲酸铵、肉桂酸对DI材的阳极过程有明显的抑制作用;
The effect of phenylalanine, abscisic acid, sliver nitrate, sodium benzoate, sodium acetate, chitosan and glycine on taxol production was evaluated by using a fractional factorial design. The major factors were proved to be chitosan, sliver nitrate and abscisic acid. 首先,用部分因素实验对苯丙氨酸、脱落酸、硝酸银、苯甲酸钠、醋酸钠、壳聚糖、甘氨酸对紫杉醇含量的影响进行评价,并找出其中主要影响因子壳聚糖、硝酸银和脱落酸;
Benzyl benzoate was synthesized by the esterification of sodium benzoate and benzyl chloride in the presence of water and triethylamine which was taken as the phase transfer catalyst. 研究了在有水存在下,利用相转移催化剂三乙胺催化苯甲酸钠和氯化苄的酯化反应。
The clarifier was 70% ethanol and the supplemental agents were 1% tween-80 and 0.2% sodium benzoate. 同时选择70%乙醇为澄清剂,1%吐温-80为稳定剂,0.2%苯甲酸为防腐剂,制成了麻杏石甘口服液。
Most food additives and most metal ions do not show deteriorative effects on the pigment except sodium benzoate. 常见食品添加剂(除苯甲酸钠外)和金属离子对色素无显著影响。
In this paper, we used acridine orange, SDS, sodium benzoate to eliminate the plasmid. 质粒消除为了考察质粒的功能,本文采用了吖啶橙、SDS和苯甲酸钠三种消除剂进行质粒消除。