大众科技
大衆科技
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DAZHONG KEJI
2013年
6期
96-99
,共4页
不确定度%PM10%镉%石墨炉原子吸收法
不確定度%PM10%鎘%石墨爐原子吸收法
불학정도%PM10%력%석묵로원자흡수법
Uncertainty%PM10%Cadmium%Graphite furnace atomic absorption spectrometry
通过采集广西区梧州某工业园区的 PM10,采用石墨炉原子吸收法测定镉含量,根据 JJF1059-1999《测量不确定度评定与表示》建立对影响测量结果的不确定度评定模型和方法,并进行了量化的评定,结果表明影响镉含量测定不确定度的主要因素为测量过程、试样制备和采样体积。在该样品镉含量测定中,环境空气 PM10中镉含量为0.00926±0.00031μg/m3,k=2。
通過採集廣西區梧州某工業園區的 PM10,採用石墨爐原子吸收法測定鎘含量,根據 JJF1059-1999《測量不確定度評定與錶示》建立對影響測量結果的不確定度評定模型和方法,併進行瞭量化的評定,結果錶明影響鎘含量測定不確定度的主要因素為測量過程、試樣製備和採樣體積。在該樣品鎘含量測定中,環境空氣 PM10中鎘含量為0.00926±0.00031μg/m3,k=2。
통과채집엄서구오주모공업완구적 PM10,채용석묵로원자흡수법측정력함량,근거 JJF1059-1999《측량불학정도평정여표시》건립대영향측량결과적불학정도평정모형화방법,병진행료양화적평정,결과표명영향력함량측정불학정도적주요인소위측량과정、시양제비화채양체적。재해양품력함량측정중,배경공기 PM10중력함량위0.00926±0.00031μg/m3,k=2。
Through collecting the PM10 in ambient air, we determine the cadmium content by graphite furnace atomic absorption spectrometry. According to JJF1059-1999 "Evaluation and Expression of Uncertainty in Measurement" , we establish the evaluation model and method for influencing the results of measurement uncertainty, and conduct a quantitative evaluation. The results which effect determination of cadmium content of uncertainty show that main factors are measurement process, sample preparation and sample volume, measurement. In the determination of cadmium content in the samples, the cadmium content PM10 in ambient air is 0.00926 ± 0.00031 μ g/m3, k=2.