Methods: Adjusting the kind of solvent, changing the range of testing temperature and concentration, examining linear relation, precision and percent recovery.
方法：调节溶剂种类、温度范围和测试浓度，考察线性关系、精密度和回收率。
The analytical conditions for determination of mercury in rice by atom fluorescence spectrometry are optimized from the concentration of natrium borohydride and acid, linear range and recovery rate.
通过对硼氢化钠浓度、酸介质浓度、线性范围和回收率的探讨，优化了原子荧光光谱法测定大米中汞含量的测定条件。
In certain range of concentrations, there existed a good linear correlation between the average blueness of image and the concentration of phosphorus in solution after chromogenesis.
在一定的浓度范围内，显色后的溶液磷浓度与图像的平均蓝色度有较好的线性关系。
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