Eluants used in eluting chromatographic separation of crude oil family compositions are noxious and volatilizable. 原油族组成洗提层析分离中使用的洗脱液有毒性、易挥发。
Ion Chromatographic Determination of Polyphosphates with Low-acidity Eluants 低酸度淋洗液离子色谱法测定多聚磷酸盐
Narrow-distribution polystyrene was eluted on a NDG ( silanized rigid SO2) column with benzene, toluene, THF and MEK as the eluants. 窄分布聚苯乙烯在NDG(硅烷化刚性硅胶)柱上,以苯、甲苯、THF和MEK作为淋洗剂时,流体力学体积?[η]和校正的流体力学体积?
Extraction tests were made with Grade ⅱ a activated silica gel. The ratio of the sample to the adsorbent was 1:30. In the two eluants, the ratio of ethyl acetate or acetone to benzene depended on the elution order. 提制试验是用Ⅱa级活性硅胶进行的,样品与硅胶之比为1:30。在两种洗脱剂系统中,乙酸乙酯或丙酮对苯的比例根据试验的洗脱顺序而定。
Study on the universal calibration parameters for GPC in the system of polystyrene and different eluants 窄分布聚苯乙烯在不同淋洗剂体系中GPC的普适校正问题
Extract concentration, pH, flow rate, different eluants, eluants of different ethanol concentration and other factors were investigated. The adsorption and desorption crafts of DM-130 macroporous resin were optimized. 分别从pH值、提取液浓度、流速、不同种类的洗脱剂、不同浓度乙醇洗脱剂等方面考察并优化了该树脂的吸附和洗脱工艺条件。