The identification of Radix scutellariae was silica gel G plate, n-butanol-glacial acetic acid-water(7:1:2) as the development reagent, chloride ferric(1%) as color developing reagent.
后者黄芩的鉴别:硅胶G薄层板,正丁醇-冰乙酸-水(7:1:2)为展开剂,1%三氯化铁乙醇溶液为显色剂;
The factors influencing gel electrolyte performance such as the content of silica and sulfuric acid and the temperature are mainly discussed.
主要探讨了二氧化硅及硫酸含量、温度等因素对胶体电解质物化性能的影响;
The synthesis of i amyl acetate from i amylic alcohol and acetic acid using silica gel carrier acid as catalyst is reported.
以乙酸和异戊醇为原料,采用硅胶载体酸为催化剂合成乙酸异戊酯。
Method:Conducted baicalin assaying in this drug by HPLC. Chromatogram condition:Selecting octadecyl Chemically bonded phase silica gel, Methanol:water; glacial acetic acid (40:60:1)as mobile phase.
方法:采用高效液相色谱法对该药中的黄苓苷含量测定,色谱条件:选用十八烷基硅烷键合硅胶,以甲醇:水:冰醋酸(40:60:1)。
In this paper, we have studied the adsorption of benzoic acid and anthracene from binary mixed solvents; on silica gel and activated carbon.
本文研究了硅胶和活性炭从二元混合溶剂中吸附苯甲酸和蒽。
The invention involves preparation method of humic acid bonded silica gel, it bonds the humic acid on silica gel through the mean of embedding carboxyl groups.
本发明涉及一种腐殖酸键合硅胶的制备方法,通过内嵌酰胺基团的方法将腐殖酸键合 到硅胶上。
The humic acid bonded silica gel has characteristics of larger penetrating capacity, high adsorbance per unit quality and high selectivity when it is used for solid phase abstraction.
制备的腐殖酸键合硅胶用于固相萃取时,表现出穿透体积大,单位质量吸附量高,选择性高的特点。
The invention has characteristics of simple synthesis and cheap raw material, and the performance of prepared humic acid bonded silica gel is stable.
本发明具有合成简单、原料便宜的特点,制备的腐殖酸键合硅胶性能稳定。
The invention has characteristics of simple synthesis and cheap raw material, and the performance of prepared humic acid bonded silica gel is stable.
本发明具有合成简单、原料便宜的特点,制备的腐殖酸键合硅胶性能稳定。
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