采用适当浓度盐酸溶液洗涤法，直接对单、双磺酸进行分离。
Here the appropriate concentration of hydrochloride lavation method has been adopted to separate the mono - and di - sulfonic acids directly.
用70%丙酮溶液洗涤滤饼三次后，用清水洗涤一到两次，得到淡黄色固体。
Wash the cake three times with 70% acetone, one or two times with clean water, faint yellow solid is obtained.
反应产物用稀盐酸溶液洗涤，将所得沉淀干燥后经分离纯化，对纯化产物进行高分辨质谱、红外光谱鉴定。
The residue was washed with dilute hydrochloric acid solution, The precipitation was dried, purified, and identified by the infrared spectrometry (IR) and high mass spectrometry(HRMS)with DES-HS.
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