The results show that catalytic efficiency of the phase transfer catalyst BETAC is higher than TBAB, and TBAB is nearly as efficient as TEBA.
实验结果表明：本体系中相转移催化剂的催化效率是苄基三乙基氯化铵大于四丁基溴化铵和四乙基溴化铵；
Ethyl pyruvate was synthesized from ethyl lactate using TBHP as oxidant and TBAB as phase transfer catalyst, the purity of product was over 98 %.
以叔丁基过氧化氢(TBHP)为氧化剂，四丁基溴化铵(TBAB)为相转移催化剂，有效地将乳酸乙酯氧化合成丙酮酸乙酯，产品纯度达98%以上。
The extraction separation behaviour of lead with(NH4)2SO4-tetrabutylammonium bromide(TBAB)-H2O system and the conditions for the separation of lead with other metal ions are studied.
研究了硫酸铵-溴化四丁基铵（TBAB）-水体系萃取分离铅的行为及其与常见离子的分离条件。
The catalytic dehydration of lemonile with various alkalis and PTC was studied. The optimal conditions dehydration to lemonile for KOH TBAB catalytic by orthogonal design were determined.
研究了不同碱对柠檬肟的催化脱水效果及不同PTC的催化作用效果，并用正交实验设计法确定了使用KOH- TBAB催化脱水法合成柠檬腈的最佳反应条件。
The experimental results indicated that the reaction temperature and the dosage of 1-butyl bromide were the main factors while the reaction time and the dosage of TBAB were the minor factors.
实验结果表明，反应温度和溴代正丁烷的用量是相转移催化合成噻酮工艺的主要影响因素。
Conclusions: The joint determination of various TBAb in serum was a supplementary diagnostic method to screen those infected with tubercle bacillus in patients with various digestive diseases.
结论：联合检测多种血清抗结核抗体是筛检消化疾病患者结核抗原感染的辅助诊断手段。
Conclusions: The joint determination of various TBAb in serum was a supplementary diagnostic method to screen those infected with tubercle bacillus in patients with various digestive diseases.
结论：联合检测多种血清抗结核抗体是筛检消化疾病患者结核抗原感染的辅助诊断手段。
应用推荐