...前只将基质效应限于生物材料中未知或未定性的物质或因素（如黏度、pH等）基质效应所致分析结果的偏差称为基质偏差（matrix bias），并对基质偏差的准确度进行了评价。
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bias matrix 偏移矩阵
Objective To test the calibration bias and matrix effects of cholesterol reagents.
目的试验胆固醇试剂的校准偏差和基质效应。
The method employed is based on a position weight matrix approach improved by a frequency correction which takes in to consideration the amino acid bias present in proteins.
使用的方法是基于由一个频率修正增强的一种位置权重矩阵方法，它考虑了蛋白质中出现的氨基酸偏差。
The LFM is analyzed exactly like a sample, and its purpose is to determine whether the sample matrix contributes bias to the analytical results.
LFM和样品一样进行分析，目的是为了确定样品基质对分析结果的影响。
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