湿法冶金
濕法冶金
습법야금
HYDROMETALLURGY OF CHINA
2015年
3期
256-258
,共3页
火焰原子吸收法%硝酸钍%钾%钠%测定
火燄原子吸收法%硝痠釷%鉀%鈉%測定
화염원자흡수법%초산토%갑%납%측정
flame atomic absorption spectrometry%thorium nitrate%potassium%sodium%determination
硝酸钍样品经水溶解后,在酸性介质中加入氯化铯消除电离干扰,采用火焰原子吸收法测定钾、钠。结果表明:方法检出限为0.020 m g/L (钾)和0.004 m g/L (钠);钾回收率为102.5%,测定结果的相对标准偏差为3.0%(n=6);钠回收率为97.0%,测定结果的相对标准偏差为2.5%(n=6)。
硝痠釷樣品經水溶解後,在痠性介質中加入氯化銫消除電離榦擾,採用火燄原子吸收法測定鉀、鈉。結果錶明:方法檢齣限為0.020 m g/L (鉀)和0.004 m g/L (鈉);鉀迴收率為102.5%,測定結果的相對標準偏差為3.0%(n=6);鈉迴收率為97.0%,測定結果的相對標準偏差為2.5%(n=6)。
초산토양품경수용해후,재산성개질중가입록화색소제전리간우,채용화염원자흡수법측정갑、납。결과표명:방법검출한위0.020 m g/L (갑)화0.004 m g/L (납);갑회수솔위102.5%,측정결과적상대표준편차위3.0%(n=6);납회수솔위97.0%,측정결과적상대표준편차위2.5%(n=6)。
The thorium nitrate was dissolved in water .In acidic medium ,eliminating the disturbance of ionization by adding cesium chloride ,potassium and sodium in the thorium nitrate solution were determined by flame atomic absorption spectrometry .The results show that the detection limit of potassium and sodium are 0 .020 mg/L and 0 .004 mg/L ,respectively .The recovery rate and RSD of potassium are 102 .5% and 3% (n=6) ,the recovery rate and RSD of sodium are 97% and 2 .5% (n=6) .