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报道:为模索高温石墨炉原子吸收法在发锰测定中的规律及价值,本文对样品处理、准确度、精密度以及对照实验等进行了初步探讨。精密度:取同一发样,反复测定六次,结果为5.6±0.15(μg/g),变异系数2.8％,说明本法有较高的精密度。实验对照:用该法与甲醛肟比色法同时测定16份样品,经统计学处理,相关系数为0.871,说明本法可代替甲醛肟比色法测定发锰。准确度:取含量为
Reported: In order to find out the regularity and value of high temperature graphite furnace atomic absorption spectrometry in the determination of manganese, the article discussed the sample processing, accuracy, precision and control experiments. Precision: take the same hair sample, repeated determination of six times, the result was 5.6 ± 0.15 (μg / g), coefficient of variation of 2.8%, indicating that this method has a higher precision. Experimental control: This method and formaldehyde oxime colorimetric simultaneous determination of 16 samples, the statistical analysis, the correlation coefficient of 0.871, indicating that the method can be used instead of formaldehyde oxime colorimetric determination of hair manganese. Accuracy: Take content as