Pd/BC was used as catalyst for disproportionation of slash pine rosin.
研究钯/竹炭(Pb/BC)催化剂对湿地松松香的歧化反应,确定了最佳反应条件,催化剂用量为原料松香质量的0。
Taking advantage of the selectively crystalline specialty of 2-amino-2-methyl-1-propanol toward isopimaric acid,butanolidine isopimarate(2-amino-2-methyl-1-propanol isopimaric acid salt) was prepared by reacting 2-amino-2-methyl-1-propanol with thermally isomerized slash pine rosin that was freshly prepared from oleoresin or rosin,then purified by multi-recrystallization.
利用异丁醇胺对异海松酸的选择性结晶特性,采用湿地松松脂蒸馏后得到的新鲜松香,或者采用工厂生产得到的湿地松松香进行热异构使大部分枞酸型树脂酸异构成为枞酸,而后将异海松酸与异丁醇胺反应形成异海松酸的异丁醇铵盐而与其他树脂酸进行分离,再利用复式重结晶法纯化异海松酸铵盐结晶,分解游离得到异海松酸,其得率达到原料松香质量分数的10。
In this study, the preparation of Pd/BC catalyst and its application in slash pine rosin was first investigated systemically with the bamboo charcoal as the support.
本研究以竹炭为载体,首次系统的研究了钯/竹炭(Pd/BC)催化剂的制备工艺以及其在湿地松松香歧化反应中的应用,并对湿地松松香歧化反应的动力学进行了研究,确定了Pd/BC催化剂的制备工艺以及湿地松松香歧化反应的最优条件。
The chemical components of Pinus elliottii Engelm.
利用GC-MS联用技术对取自巴西的湿地松松脂化学成分进行了分析和鉴定。
Determination of cortisol and cortisone in serum by high performance liquid chromatography (HPLC);
高效液相梯度洗脱法测定血清中氢化可的松和可的松的含量
Compositions of cortisone and cortisol in colostrum of Holstein Cows
牛初乳中可的松和氢化可的松质量分数变化
Results showed that cortisone inhibited markedly the lymphocyte proliferation from 0.
结果表明,可的松对鲫鱼淋巴细胞的增殖有明显的抑制作用,睾酮和雌二醇对鲫鱼淋巴细胞的增殖有明显的诱导作用。
prednisone acetate
【药】醋酸泼尼松, 去氢可的松, 强的松
Compositions of cortisone and cortisol in colostrum of Holstein Cows
牛初乳中可的松和氢化可的松质量分数变化
The Effects of Pressure on Synthesis of Hydrocortisone by Absidia Coeralea;
压力对梨头霉合成氢化可的松的影响
Colon specific delivery study on hydrocortisone bilayer-coated tablets
氢化可的松双层包衣片的结肠定位性
cortisone (INN)
可的松（国际非专利药品名称）
cortisol, not put up as medicaments
氢化可的松,未配制成药物
Relaxation exercises can free your body of tension.
放松运动可以松缓身体的紧张.
My old father will retire from his job next year and take things easy.
我的老父亲明年退休，可以轻松轻松了。
a nice squidgy cream cake
松软可口的奶油蛋糕.
You must not relax your efforts.
你不可以松懈你的努力。
My job is no picnic.
我的工作可不轻松愉快。
Lebanese pizza topped with minced meat onion and pine nuts.
顶部配以鲜嫩的小牛肉，洋葱和松仁，松软可口.
His team is now planning a full-scale clinical trial of the cortisol treatment.
他的团队正在计划完整的可体松测试。
any of several pinons bearing edible nutlike seeds.
松树的一种，类似坚果的种子可食。
Loose sediments may be changed into solid sedimentary rocks.
松散的沉积物可以变成坚硬的沉积岩。
Travel abroad is no picnic.
海外旅行可不是一件轻松的事情。
"He hopes to take a cushy job But at the same time, worries about the pay he gets from such a job"
他想干轻松的工作,可又怕挣钱太少了
His humour provided some welcome light relief.
他的幽默可使人松了一口气.