英语高手进，机器翻译的别来，化工专业类翻译

来源：百度知道 编辑：UC知道 时间：2024/06/08 06:51:07
The small particles of Amberlite XAD-2 resin were prepared as follows; the commercially obtained resin (20-50mesh) was ground and the particles between 100and 200 mesh were collected by sieving and repeated decantation. The resin was washed in succession with 1N NaOH, water, 1N HCl, ethanol (2 times), ether, petroleum ether, ethanol and water. 【Finally the resin was equilibrated by washing several times with 0.5% NaCl in 50% methanol (solvent A) and packed into the column up to a height of 16 cm (1.8×20 cm, glass column with a jacket).】 The column was connected to the Beckman Model-130 Spectrochrom Analyzer and warm water (30°) was circulated in the jacket. 【The two reservoirs connected to the gradient pump of the Spectrochrom Analyzer were filled, one with solvent A, the other with 3/500 N HCl in 50% methanol (solvent B).】 The solvent A was pumped into the column at a flow rate of 60 ml/hr to complete equilibration. The sample of enduracidin (5-50 mg) was dissolved in 1—2 ml of solven

XAD－2大孔吸附树脂的制备方法如下 ：工业上将20－50目的树脂磨碎，筛选出100－200目的树脂颗粒，然后进行反复装柱。树脂分别用1mol/l氢氧化钠，水1mol/l盐酸，两倍体积的乙醇，二乙醚，石油醚以及水进行洗脱，【最后用含0.5%氯化钠的50%甲醇反复清洗后平衡。接着进行装柱，柱床高约16cm（玻璃柱，规格1.8＊20cm）】，柱子连接一台贝克曼公司的130型色谱仪 ~~
【在色谱仪的梯度装置上连接有两个装满洗脱液的贮液器，一瓶装的是溶液A，另一个是含3/500 mol/l的50%甲醇（溶液B）】~~~

小颗粒Amberlite XAD - 2树脂编写了如下的商业获得树脂（ 20 - 50mesh ）的地面和粒子之间100and 200目收集筛选和反复decantation 。树脂是洗继承1N的氢氧化钠，水， 1N的盐酸，乙醇（ 2次） ，乙醚，石油醚，乙醇和水。 【最后的树脂是平衡的洗涤几次0.5 ％氯化钠50 ％甲醇（溶剂）和装入柱高达高度16厘米（ 1.8 × 20厘米，玻璃柱，一件夹克） 。 】栏被连接到贝克曼模型- 130 Spectrochrom分析仪和温水（ 30 ° ）散发的外套。 【这两个水库连接到梯度泵的Spectrochrom分析仪填补了之一溶剂A的其他与五百分之三ñ HCl在50 ％甲醇（溶剂乙） 。 】溶剂A是注入柱，流速率60毫升/小时，完成平衡。抽样enduracidin （ 5-50毫克）是溶解于1-2毫升的溶剂和放置在上方的一栏通常的方式，然后洗脱是开始使用线性梯度凸轮和齿轮的1升的总音量。经过测量紫外吸收光谱在233 ， 253和272纳米，电导率和pH值的洗脱液，这是每分10分钟的一小部分收藏家在2-5 ° 。

The small particles of Amberlite XAD-2 resin were prepared as follows; the commercially obtained resin (20-50mesh) was ground and the particles between 100and 200 mesh were collected by sieving and repeated decantation. The resin