For each pair of amino acids, determine which will be eluted first from the ion-exchangecolumn using a pH 7.0 buffer.
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。
2
Retention behavior of alkali metals, ammonium ion and alkyl amines on a sulfonic cation-exchange resin column with organic acid and inorganic acid as eluent was studied.
系统研究了碱金属、铵离子和烷基胺在磺酸型阳离子交换树脂柱上以有机酸和无机酸为淋洗液的保留行为。
3
Methods The peptide was separated by ionexchangecolumn chromatography and further purified by reverse phase HPLC, and the molecular weight was determined by tricine gel electro phoresis.