The resolution of DL p hydroxyphenylglycine into its D and L isomers was studied by using aromatic sulfonic acid as resolving agent and water as solvent.
以水为溶剂，取代芳磺酸为拆分剂，用诱导结晶法，经成盐、拆分、水解过程，将DL-对羟基苯甘氨酸拆分成D-对羟基苯甘氨酸。
The following table is based on the guidelines of ASTM D 2855, "Standard Practice for Making Solvent-Cemented Joints with Poly Vinyl Chloride (PVC) Pipe and Fittings".
下表以美国材料实验协会ASTMD 2855“聚氯乙烯（PVC）管道和管件液状粘固剂连接标准规程”有关标准制定。
The degree of deacetylation of chitosan was determined directly by 1st derivative UV spectrophotometry using hydrochloric acid as solvent and N acetyl D glucosamine (ACGLSM) as standard.
以盐酸为溶剂，N乙酰基D葡萄糖胺为标准品，用紫外一阶导数光度法直接测定壳聚糖的脱乙酰度。
The equipment is widely suitable for hospital, pharmacy factory and R&D institute and foodstuff manufacture to extract and concentrate Chinese traditional drug juice and recycling organic solvent.
本机组适用于医院、药厂、食品行业、科研院所对中草药、果汁等物料的提取和浓缩，以及有机溶媒的回收。
The equipment is widely suitable for hospital, pharmacy factory and R&D institute and foodstuff manufacture to extract and concentrate Chinese traditional drug juice and recycling organic solvent.
本机组适用于医院、药厂、食品行业、科研院所对中草药、果汁等物料的提取和浓缩，以及有机溶媒的回收。
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