确定下列每对氨基酸在pH7.0的缓冲液中，哪个先从离子交换柱上洗脱下来。
HDC的蛋白的洗脱透析消除咪唑，以及HDC的活动进行检查。
最后在低浓度的缓冲液或水中，DNA又从硅胶柱洗脱。
为什么280nm紫外吸收是检测洗脱组分中蛋白质的存在的好方法？
经过最佳条件选择，在同一水样中可以同时进行富集、洗脱铅和镉。
其中美满霉素洗脱时间为1.5分钟，利福平检测时间为13分钟。
弱酸洗脱提取的肿瘤抗原肽致敏的树突状细胞对CTL的体内外激活效应
1·Under optimum conditions, lead and cadmium can be enriched and eluted at the same time in the same water sample.
经过最佳条件选择，在同一水样中可以同时进行富集、 洗脱铅和镉。
2·When using green tea as raw material, it is difficult to prepare the qualified decatechin product of GTC-70(EGCG>40) which is eluted with 80% ethanol directly after being adsorbed by A resin.
以绿茶为原料经过A树脂吸附后直接通过80％的乙醇洗脱，难以达到符合低咖啡因的GTC-70（EGCG大于40％）规格的品质要求。
3·They are eluted by both self-elution effect and on-column change of the eluent.
提出了在高浓度基体中，同时存在自身洗脱效应和在线流动相变化两种洗脱机理。
4·The SPE column was washed with water and eluted with acetonitrile.
用水淋洗、乙腈洗脱固相萃取柱。
5·The compositions of grease were eluted with petroleum ether, benzene, chloroform, ethyl acetate, acetone, ethanol and characterized by means of IR and NMR spectroscopy.
油脂部分依次以石油醚、苯、氯仿、乙酸乙酯、丙酮、乙醇为淋洗剂进行洗脱，利用红外光谱、核磁共振光谱法对所分离组分进行了结构鉴定。