在化学分析中,通常采用的样品定量方法有校准曲线法、标准加入法和标准比较法等.这里介绍一种新方法——样品加入法.样品加入法是将不同已知体积的样品溶液分别加入到已知含量的等份等量的标准溶液中,形成总体溶液(标准溶液+样品溶液)系列,依次测定其观测值.然后采用“最小二乘法”回归求得样品溶液加入体积与总体溶液系列观测值的关系曲线,从而求 In chemical analysis, the commonly used sample quantification methods are the calibration curve method, the standard addition method and the standard comparison method, etc. Here is a new method - sample addition method is to sample different known volumes of the sample solution respectively Added to the known content of equal parts of the standard solution to form a total solution (standard solution + sample solution) series, followed by determination of the observed value.And then using the “least squares regression” obtained sample solution was added to the volume and the total solution Series of observations of the relationship curve, thus seeking