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做生化试验经常离不开恒温加热箱。如氨基酸分析水解样品,蛋白质末端鉴定,样品的恒温反应等等。加热恒温箱体积大,耗电多,升温时间慢。我们制作了一种简易实用的恒温装置,构造简单,温差不超过±1.5℃,现将制作方法介绍如下: 1.所需设备 71型晶体管继电器一个(上海宝山五金电器厂);电接点式玻璃水银温度计(上海医用仪表厂)直径12cm电炉盘一个200瓦电炉丝一根不锈钢圆柱一个 2.制作方法在直径12cm,高5cm的一个不锈钢圆柱中间打一孔,围绕中间孔打洞数个,洞直径1.5cm洞间距0.5cm,除中央一个孔上下打穿外,其余洞深4cm(洞孔大小也可按试验所需设计)。
Do biochemical tests often can not do without constant temperature heating box. Such as amino acid analysis of hydrolyzed samples, protein end identification, sample thermostatic reaction and so on. Heating incubator large volume, more power, heating time is slow. We have produced a simple and practical thermostat device, the structure is simple, the temperature difference does not exceed ± 1.5 ℃, the production methods are introduced as follows: 1. The required equipment 71 transistor relay (Shanghai Baoshan Hardware Electrical Factory); electrical contact glass Mercury thermometer (Shanghai Medical Instrument Factory) diameter 12cm electric furnace plate a 200-watt electric furnace wire a stainless steel cylinder a 2. Production methods in the diameter of 12cm, 5cm high stainless steel cylinder hit a hole in the middle, around the hole a few holes Diameter 1.5cm hole spacing 0.5cm, in addition to a central hole punctured up and down, the remaining hole depth 4cm (hole size can also be designed according to the test).