北方环境
北方環境
북방배경
INNER MONGOLIA ENVIRONMENTAL SCIENCES
2013年
7期
130-133
,共4页
热分解汞齐化原子吸收法%土壤%汞
熱分解汞齊化原子吸收法%土壤%汞
열분해홍제화원자흡수법%토양%홍
Thermal decomposition amalgamation atomic absorption method%Soil samples%Mercury
MA -3000型测汞仪是根据美国EPA7473（热分解汞齐化原子吸收法）标准而生产的新一代测汞仪，它可直接测定水、气、土壤等样品中所含的汞。本实验在最佳的仪器工作条件下，对影响总汞测定结果的空白值、原子化温度、热分解时间、载气流量、固定液和共存离子等因素作了研究，并根据实验室质量保证要求，进行了一系列检出限、精密度、准确度、方法比对等试验，从而达到了准确测量土壤中总汞的目的。本方法具有简便、快速、准确、干扰少等优点，作为土壤中汞的分析方法，值得推广。
MA -3000型測汞儀是根據美國EPA7473（熱分解汞齊化原子吸收法）標準而生產的新一代測汞儀，它可直接測定水、氣、土壤等樣品中所含的汞。本實驗在最佳的儀器工作條件下，對影響總汞測定結果的空白值、原子化溫度、熱分解時間、載氣流量、固定液和共存離子等因素作瞭研究，併根據實驗室質量保證要求，進行瞭一繫列檢齣限、精密度、準確度、方法比對等試驗，從而達到瞭準確測量土壤中總汞的目的。本方法具有簡便、快速、準確、榦擾少等優點，作為土壤中汞的分析方法，值得推廣。
MA -3000형측홍의시근거미국EPA7473（열분해홍제화원자흡수법）표준이생산적신일대측홍의，타가직접측정수、기、토양등양품중소함적홍。본실험재최가적의기공작조건하，대영향총홍측정결과적공백치、원자화온도、열분해시간、재기류량、고정액화공존리자등인소작료연구，병근거실험실질량보증요구，진행료일계렬검출한、정밀도、준학도、방법비대등시험，종이체도료준학측량토양중총홍적목적。본방법구유간편、쾌속、준학、간우소등우점，작위토양중홍적분석방법，치득추엄。
MA -3000 type mercury measuring instrument is a new generation ,which is produced according to the United States EPA7473 (thermal decomposition amalgamation atomic absorption method ) standard .It can directly determine mercury in water , air ,soil samples and so on .This paper has studied various factors influencing determination results of total mercury in the optimal condition ,such as the blank figures ,atomized temperature ,the time of thermal decomposition ,flow rate of carrier gas ,selection of the stationary phase and interference of coexist ionic and so on .In order to determine the total mercury in the soil accurately ,there are a series of experiments including detection limit ,precision and accuracy ,method comparison according to the laboratory quality requirements .The method is of great ease ,high speed ,precision and less interferences and has popularization value for determina-tion of total mercury in soil .
