目前,实验室的过滤装置很多,有玻璃漏斗、布氏漏斗、钳锅漏斗等等,但其存在共同的缺点是滤纸的底面积较大,在过滤量较少的样品时,往往很难收集样品,而使样品损失很大,现介绍一种能自制的简单的玻璃钉过滤装置,可克服上述缺点,其制作过程如下: 1 材料与设备 1.1 普通玻璃漏斗,规格自定; 1.2 玻璃棒,大小与漏斗管径相适宜; 1.3 酒精喷灯; 1.4 木板一块。 At present, there are many filtration devices in the laboratory, such as glass funnels, Buchner funnels, tongs funnels and the like. However, the common disadvantage is that the bottom area of ​​the filter paper is large, and it is often difficult to collect samples with smaller filtration volumes Sample, leaving the sample loss is large, are introduced to a simple self-made glass nails filter device to overcome the above shortcomings, the production process is as follows: 1 Materials and equipment 1.1 ordinary glass funnel, custom specifications; 1.2 glass rods, Size and funnel diameter appropriate; 1.3 alcohol burner; 1.4 a piece of wood.