1) acetate lead precipitation
乙酸铅沉淀
2) lead molybdate sedment
钼酸铅沉淀
1.
After the sample of molybdenum oxide was changed into lead molybdate sedment,the sedment was dried by microwave,and at the same time the moisture in molybdenum oxide was also determined by microwave.
将氧化钼样品经处理转化为钼酸铅沉淀后,以微波炉代替马弗炉对沉淀进行了干燥试验,同时对氧化钼的水分测定也采用了微波干燥法。
4) lead and strontium co-deposition
铅锶共沉淀
1.
A research on lead and strontium co-deposition chelatometric titration in lead concentrate
铅精矿中铅的铅锶共沉淀络合滴定法研究
5) ethyl alcohol precipitation
乙醇沉淀
1.
Immunoglobulin of egg yolk(IgY) can be extracted by the ice ethyl alcohol graduation centrifuge method and immunoglobulin can be purified gradually through the low temperature ethyl alcohol precipitation,Sephadex G-15 chromatography,A-50 ionic exchange chromatographic analysis,Tris-HCl buffer solution elution and Sephadex G200 gelatin filtration and so on.
通过低温乙醇沉淀、DEAE葡萄糖凝胶A-50离子交换层析、Tris-HCl缓冲液洗脱及Sephadex G200凝胶过滤等逐步纯化免疫球蛋白。
2.
The way of colloid adsorption together with ethyl alcohol precipitation isolated these two proteins successfully.
采用两性离子胶体沉淀和乙醇沉淀相结合的粗提方法,经离子交换、疏水层析、亲和层析及凝胶过滤 4个步骤有效地将人尿激肽原酶(hk 1)粗提物纯化,比活提高了 175 5倍,总得率为 70 %。
6) ethanol precipitation
乙醇沉淀
1.
MethodsThe following experiment were conducteds: pH control of fermentation,the concentration of ethanol for CPS extraction and nucleic acid precipitation,the temperature and time of ethanol precipitation and the times of protein extraction with cold phenol.
方法研究pH值,沉淀核酸和荚膜多糖的乙醇浓度,乙醇沉淀多糖所需的温度和时间;比较蛋白酶K法、Sevag法和冷酚抽提法去除荚膜多糖中杂蛋白质的效果。
2.
The experiment extracted mixed amino acids through acid hydrolysis, active carbon absorption and ethanol precipitation, and first studied the optimum extracting conditions of mixed amino acids from Capsella bursa-pastoris (L).
通过酸水解、活性炭吸附、乙醇沉淀进行氨基酸提取,首次确定了从荠菜提取混合氨基酸的最佳工艺条件。
3.
The method of ethanol precipitation together with ZnCl2 colloid precipitation was found to isolate themwith higher yield and activities.
本文通过ZnCl2胶体沉淀和乙醇沉淀相结合的方法可有效分离两者,得率高、活性保留好。
补充资料：乙酸铅
分子式Pb(CH3COO)2。白色晶体；熔点280°C，密度3.25克/厘米3(20°C)；易溶于水，溶解度为44.3克/100克水（20°C）。三水合乙酸铅Pb(CH3COO)2·3H2O为白色单斜晶体；又称铅糖；密度2.55克/厘米3（25°C）；溶解度为 55.04克/100克水；75°C时失水。十水合乙酸铅Pb(CH3COO)2·10H2O为白色正交晶体，密度 1.69克/厘米3(25°C)，在室温下容易风化失水。
乙酸铅在水溶液中会形成配位化合物，其电离程度比较小。乙酸铅可由一氧化铅溶于乙酸溶液来制取，也可将水白铅矿2PbCO3·Pb(OH)2或白铅矿PbCO3溶于乙酸来制取。乙酸铅可用于染料和医药工业。
乙酸铅在水溶液中会形成配位化合物，其电离程度比较小。乙酸铅可由一氧化铅溶于乙酸溶液来制取，也可将水白铅矿2PbCO3·Pb(OH)2或白铅矿PbCO3溶于乙酸来制取。乙酸铅可用于染料和医药工业。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条