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- Keywords reversed phase ion pair chromatography;tetrabutyl ammonium hydroxide;nitrite; 反相离子对色谱;四丁基氢氧化铵;亚硝酸盐;
- tetrabutyl ammonium hydroxide 四丁基氢氧化铵
- Sulfadiazine-polylactide,a tumor targeting drug carrier,was successfully synthesized by the phase transfer catalysis(PTC)with tetrabutyl ammonium chloride hydroxide as catalyst. 采用相转移催化法以四丁基氯化铵为催化剂合成了端基含磺胺嘧啶的聚乳酸,将肿瘤导向基团引入了可生物降解药物载体。
- Tetrabutyl ammonium bromide is considered as the best phase transfer catalyst, with 85.7% yield. 实验结果表明:以四丁基溴化铵为相转移催化剂,氧化反应的收率可提高到85.;7%25。
- The parameters, such as concentration of methanol and tetrabutyl ammonium bromide,were optimized. 对影响汞化合物吸收强度和保留时间的因素如甲醇和四丁基溴化铵的浓度进行了优化。
- The graphite is mixed with clay from Mississippi in which ammonium hydroxide is used in the refining process. 石墨要与产自密西西比河床的粘土混合,在精炼过程中,还要用到氢氧化铵。
- A new water developable,photosensitive phenolic resin containing quaternary ammonium hydroxide groups and acrylate groups(AQHPR) was synthesized. 研究了作为新型水显影阻焊剂组分的含丙烯酸酯基及季铵碱基的酚醛树脂的各种感光条件。
- N,N-diethylaniline was synthesized under normal tempreture with tetraethyl ammonium hydroxide as phase transfer catalyst. 以苯胺和溴乙烷为原料,用四乙基氢氧化铵作相转移催化剂,在常压下合成N,N二乙基苯胺。
- Water; Stearic Acid; Linseed Oil; Soybean Oil; Fragrance; Ammonium Hydroxide; Propylene Glycol; Gelatin; Camphor; Menthol; Phenol; Clove Oil; Eucalyptus Oil; Calcium Hydroxide. 水;硬脂酸;亚麻籽油,大豆油;香水;氢氧化铵;丙二醇;明胶;樟脑;薄荷;苯酚;丁香油;桉树油;氢氧化钙
- The experiment results show that adding a little amount PAA to the ammonium hydroxide can increase the sedimentation rate and improve the filtrate rate of ADU serosity evidently. 结果表明:在ADU沉淀过程中,通过在沉淀剂氨水中加入少量PAA,能显著增加ADU的沉降速度和改善ADU浆体的过滤性能;
- This paper investigates the catalytic effects of tetrabutyl ammonium bromide (TBAB) and polyethylene glycol (PEG 600) as phase transfer catalyst synthesized plasticizer BBP in anhydrous Na 2CO 3 and NaOH solution. 考察了四丁基溴化铵 ( TBAB)和聚乙二醇 ( PEG6 0 0 )为催化剂 ,在无水 Na2 CO3 和 Na OH水溶液中进行相转移催化合成增塑剂邻苯二甲酸丁苄酯 ( BBP)的催化效果。
- Then,2-methyl-2-hydroxy-1-phenyl-1-pentanone was prepared by chlorination and hydrolysis with 2-methyl-1-phenyl-1-pentanone in the presence of NaOH and CCl4 as chlorinating agent and tetrabutyl ammonium bromide as the phase transfer catalyst. 最后在氢氧化钠水溶液中,以四氯化碳为氯化试剂,四丁基溴化铵作相转移催化剂,2-甲基-1-苯基-1-戊酮直接氯代和水解制得2-甲基-2-羟基-1-苯基-1-戊酮。
- Precipitation conditions, such as molar ratio of ammonia to uranium, uranium content, ammonium hydroxide content, temperature, rate of adding uranium, etc. , have influences on ADU particle size, its microstructure and the properties of UO2 powder. 沉淀条件例如氨铀比,铀浓度,氨水浓度,温度,加料速度等影响着ADU颗粒尺寸和微观结构以及其后UO_2粉末的性质。
- N,N-diethylaniline was synthesized under normal tempreture with tetraethyl ammonium hydroxide as phase transfer catalyst.The various factors affecting on the yield of the product were studied. 以苯胺和溴乙烷为原料,用四乙基氢氧化铵作相转移催化剂,在常压下合成N,N二乙基苯胺。
- Two methods for the determination of magnesium in rare earth-magnesium middle alloy by EDTA titrimetry,i.e.oxalic acid precipitation and ammonium hydroxide precipitation,were studied. 研究了分别采用草酸和氢氧化铵沉淀分离稀土镁中间合金中的稀土,EDTA络合滴定法快速测定电解稀土镁中间合金中镁的两种方法。
- Tetrabutyl ammonium bromide;TBAB; 四丁基溴化铵;
- Ammonia (ammonium hydroxide) in the majority of metals and non-metallic liquid ammonia and ammonia (ammonium hydroxide) in the corrosion is very slight, only copper and copper alloy unfit for use. 氨(氢氧化氨)大多数金属和非金属在液氨及氨水(氢氧化氨)中的腐蚀都很轻微,只有铜和铜合金不宜使用。
- "More broadly, ammonium hydroxide (see ammonia) and soluble hydroxides of the alkaline earth metals are also called alkalies. 碱是强碱性的,会使红石蕊试纸变蓝色;
- benzyltrimethyl ammonium hydroxide 氢氧化三甲基苄基铵
- Total quatemary ammonium hydroxide 季铵总碱