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研究了用大孔吸附树脂从赤霉素溶液中提取ＧＡ３，包括吸附剂、洗脱剂的筛选及操作过程中条件的选择等。结果表明，Ｈ１０３大孔树脂（干）对ＧＡ３的静态和动态吸附量分别达１．３５×１０４和９．３５×１０４μｇ／ｇ（溶液浓度２０００μｇ／ｍＬ），静态吸附等温线属Ｌａｎｇｍｉｕｒ型。最适吸附ｐＨ为２．０～３．０，一定浓度的盐有利于吸附。静态吸附时间１～２ｈ，树脂投加量以６％为宜。丙酮为最佳解吸剂。在放大试验中，吸附率达９８．２％，解吸率为９５．３２％，结晶收率９４．８５％，总收率８８．７８％。
The extraction of GA3 from gibberellin solution by macroporous adsorption resin was studied, including the selection of adsorbents and eluents and the selection of conditions during the operation. The results showed that the static and dynamic adsorption capacities of H103 macroporous resin (dry) to GA3 were 1.35 × 104 and 9.35 × 104μg / g, respectively. The static adsorption isotherms were Langmiur type. The optimum adsorption pH 2.0 to 3.0, a certain concentration of salt is conducive to adsorption. Static adsorption time 1 ~ 2h, resin dosage to 6% is appropriate. Acetone is the best desorbent. In the amplification test, the adsorption rate was 98.2%, the desorption rate was 95.32%, the crystallization yield was 94.85% and the total yield was 88.78%.