一、测量方法 采用国产WGJ-1型激光铀分析仪进行测量。测量方法有两种,即标准曲线法和标准加入法。标准曲线法是预先用不同浓度的标准液做出标准曲线,在测量样品后直接从曲线上查出相应的铀含量;这一方法在测量时对温度要求较高。标准加入法是在每次测量对加入一定量的标准溶液,并与不加标准铀液时的计数相比以求出铀含量。本文的测量采用标准 First, the measurement method using domestic WGJ-1 laser uranium analyzer for measurement. There are two measurement methods, namely the standard curve method and standard addition method. The standard curve method is to use different concentrations of standard solution to make a standard curve. After measuring the sample, the corresponding uranium content can be found directly from the curve. This method requires high temperature when measuring. The standard addition method is to add a certain amount of standard solution to each measurement, and compare it with the count when no standard uranium solution is added to determine the uranium content. This article uses the standard measurement