Multiwavelength - derivative method and linear regression spectrophotometry combined with least square method are applied to the simultaneous determination of NO_3 and NO_2 in water.
研究了利用多波长导数—最小二乘回归—紫外分光光度法同时测量水中NO_3和NO_2离子含量的方法。
Multiwavelength linear regression spectrophotometry combined with least square method is applied to the simultaneous determination of NO3 - and NO2 - in environmental water.
本文研究了利用多波长最小二乘回归- 分光光度法同时测定环境水中的NO3-和NO2- 离子含量的方法。
Initial qualitative solutions obtained by evolving factor analysis can be further optimized by simultaneous analysis of multiple electrophoresis run data with alternating least-squares regression.
由渐进因子分析所得的分析结果可作为交替最小二乘优化的初始值。
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