该工艺制得的银杏内酯A晶体纯度高于99%，总收率约为60%。
The purity of the ginkgolide A prepared in this process was above 99%, with the yield of 60%.
探讨了采用传统结晶工艺提高亚氨基二乙酸(IDA)晶体纯度和收率的方法和途经。
And has probed into the method of improving IDA's purity and. yield adopting traditional crystallization crafts.
并且从微观生长机制角度，分析了溶液纯度、生长速度、流体等因素对晶体质量的影响。
Some factors which can influence the quality of crystal were analyzed , such as purity of solution , growth rate and flow form .
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