许多土壤实验室用吸管法进行粒径分析。可是,对于吸取特定深度的样品悬液,该法仍嫌麻烦和费时。本文介绍一种较快速而容易的方法,用注射器水平地穿过量筒管壁上圆孔的隔片吸取土壤样品悬液(粘粒和粉砂)。比较注射器新法和吸管法,两种方法精确性相同,但注射器法具有较易操作和时间效率较高的优点,因而它特别适用于系列分析。 Many soil labs perform particle size analysis using pipette methods. However, this method is still cumbersome and time-consuming for drawing sample suspensions of a specific depth. This article presents a quick and easy way to pipette soil sample suspensions (clay and silt) with a syringe that horizontally passes through a septum of a circular hole in the cylinder wall. Both the new method and the pipette method are comparable in accuracy, but the syringe method has the advantages of ease of handling and time efficiency, making it particularly suitable for series analysis.