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- two - phase solvent systems 溶剂系统
- The, solvent systems of TLC of antiscorch CTP are reported. 本实验对防焦剂CTP的薄层层析流动相进行选择。
- The solvent system, a gradient program of mobile phase with 2 propanol/acetonitrile/water can separate a lot of liposoluble components in root of Chinese Angelica. 定量手段的建立,可对比当归特征组分定量结果的差异性。不用化学对照品,便能识别和定量比较当归样品中的多组分。
- The present paper is directed to the preparation of chlorpyrifos by means of a process which employs a two solvent system,in which the influence of various factors on the yield was investigated. 本文报道了采用双溶剂法合成毒死蜱，研究了各种反应条件对收率的影响。
- This paper optimized the separation conditions of nine compounds in two types of solvent system by double-unfolding technique and computer scanning technique with satisfactory results. 用计算机辅助,在两组不同溶剂系统中用两次展开技术与计算机扫描技术相结合来优化展开条件,取得了比较满意的结果。
- The antibiotic spectra of Ko-p 77 and Kp 958-4 were similar to the Rf-values in the six solvent systems used. Ko-p77与Kp958-4的抗菌谱和所用六种溶剂系统中的Rf值相似。 这表明;S.
- Papain-catalyzed synthesis of aspartame precursor Z-APM in biphasic solvent system wasinvestigated. 本文报道在两相溶剂体系中利用木瓜蛋白酶催化合成Aspartame前体Z－APM的研究。
- The two systems of government are polar opposites. 这两种政体正好相反。
- Results: The N-tert-butoxycarbonylation of lipophilic phenylalanines in THF system gave a higher yield than in other solvent systems. 结果:在水-四氢呋喃系统中随着苯丙氨酸脂溶性增大,N-叔丁氧羰基化收率提高。
- The solubility of NC-mixed solvent system is better than that of NC-mono-solvent system. NC-混合溶剂体系的溶解性比NC-单一溶剂体系的溶解性好。
- Best solvent system and qantity of modified acetone are determined by experiments. 实验确定了最佳溶剂体系及改性丙酮加入量。
- The aliphatic salt can avoid segregation of some metallic elements, which always happens to water solvent system. 脂肪酸盐体系避免了水做溶剂体系部分金属元素容易发生偏析的缺点。
- The results show that solvent system,reacting temperature,washing agent and washing-leaching times can influence the perticle size of HAP powder. 研究发现,溶剂体系、反应温度、凝胶清洗用剂及洗滤次数等对所得的粉体粒度有较大的影响。
- The two sets of traffic lights were out of phase. 那两组交通灯不同步。
- The application of capillary electrophoresis(CE) in solvent system selection for high speed countercurrent chromatography was studied in this paper. 对高效毛细管电泳在高速逆流色谱溶剂系统选择过程的应用进行了研究。
- Objective To study the effect of different solvent systems on in vitro penetration rate of aciclovir gel enhanced by Azone for optimizing the formulation of aciclovir gel. 目的研究阿昔洛韦凝胶中的不同溶剂系统对主药体外透皮速率及对氮酮促渗作用的影响,为优化阿昔洛韦凝胶处方提供实验依据。
- The business is owned by two partners. 这家商行为两名合伙人所拥有。
- Objective: To introduce a new way, which facilitates the systematic search and evaluation of the solvent systems suitable for high-speed countercurrent chromatography (HSCCC). 目的:介绍一种快速选择和评价高速逆流色谱溶剂体系的方法。
- It was said that strengthing supply clean-up effects, especially for liquor flash cleanse tower was a effective method to reduce bromine content in solvent system. 增强捕集洗涤效果，尤其是母液闪蒸洗涤塔的捕集效果是降低溶剂系统溴含量的有效手段。
- Normal Phase Solvent Choices in Order of Increasing Strength 为了增加强度选用正相溶剂
