岩矿测试
巖礦測試
암광측시
ROCK AND MINERAL ANALYSIS
2009年
6期
583-586
,共4页
不确定度评定%三氧化二铝%土壤
不確定度評定%三氧化二鋁%土壤
불학정도평정%삼양화이려%토양
uncertainty evaluation%aluminum oxide%soil
讨论了影响三氧化二铝测定结果不确定度的各种因素,并评定了土壤样品中测定三氧化二铝结果的不确定度.采用EDTA络合、氟化钾置换、乙酸锌溶液滴定的测定方法,当三氧化二铝的含量为15.03%时,其扩展不确定度U=0.20%(U_(rel)=1.4%,k=2).
討論瞭影響三氧化二鋁測定結果不確定度的各種因素,併評定瞭土壤樣品中測定三氧化二鋁結果的不確定度.採用EDTA絡閤、氟化鉀置換、乙痠鋅溶液滴定的測定方法,噹三氧化二鋁的含量為15.03%時,其擴展不確定度U=0.20%(U_(rel)=1.4%,k=2).
토론료영향삼양화이려측정결과불학정도적각충인소,병평정료토양양품중측정삼양화이려결과적불학정도.채용EDTA락합、불화갑치환、을산자용액적정적측정방법,당삼양화이려적함량위15.03%시,기확전불학정도U=0.20%(U_(rel)=1.4%,k=2).
The impacting factors on the uncertainty in measurement results of Al_2O_3 in soil samples were discussed and the uncertainty was evaluated. EDTA complex-KI replacemen-Zn(Ac)_2 titration method was used for sample pretreatment and determination of Al_2O_3 in soil samples. When concentration of Al_2O_3 is 15.03%, the expanded uncertainty is 0.20% (U_(rel)=1.4%, k=2).
