以低压聚乙烯粉镶边垫底粉末压片法制样,用X射线荧光光谱法测定盐湖粘土矿物中主次组分含量的定量分析曲线,测量了粘土矿物中As,Mn,Co,Cu,Cr,Dy,Ga,Mo,P,Pb,Rb,S,Sr,Ba,Cs,Ta,Th,Ti,U,V,Y,Zn,Zr,MgO,K_2O,Na_2O,Cao,Fe_2O_3,Al_2O_3,SiO_2含量.研究了各元素的谱线干扰特别是谱线的间接干扰,同时提出了元素周期表中各周期元素相互之问干扰的判别方法;使用α经验系数法及康普顿内标法校正基体效应,经对国家标准物及实际样品进行分析,测量值与标准值结果吻合.方法的检出限和准确度均满足分析要求,除了Mo,Cs,Ta 3个元素RSD较高,其他元素RSD为0.01%～5.45%.
以低壓聚乙烯粉鑲邊墊底粉末壓片法製樣,用X射線熒光光譜法測定鹽湖粘土礦物中主次組分含量的定量分析麯線,測量瞭粘土礦物中As,Mn,Co,Cu,Cr,Dy,Ga,Mo,P,Pb,Rb,S,Sr,Ba,Cs,Ta,Th,Ti,U,V,Y,Zn,Zr,MgO,K_2O,Na_2O,Cao,Fe_2O_3,Al_2O_3,SiO_2含量.研究瞭各元素的譜線榦擾特彆是譜線的間接榦擾,同時提齣瞭元素週期錶中各週期元素相互之問榦擾的判彆方法;使用α經驗繫數法及康普頓內標法校正基體效應,經對國傢標準物及實際樣品進行分析,測量值與標準值結果吻閤.方法的檢齣限和準確度均滿足分析要求,除瞭Mo,Cs,Ta 3箇元素RSD較高,其他元素RSD為0.01%～5.45%.
이저압취을희분양변점저분말압편법제양,용X사선형광광보법측정염호점토광물중주차조분함량적정량분석곡선,측량료점토광물중As,Mn,Co,Cu,Cr,Dy,Ga,Mo,P,Pb,Rb,S,Sr,Ba,Cs,Ta,Th,Ti,U,V,Y,Zn,Zr,MgO,K_2O,Na_2O,Cao,Fe_2O_3,Al_2O_3,SiO_2함량.연구료각원소적보선간우특별시보선적간접간우,동시제출료원소주기표중각주기원소상호지문간우적판별방법;사용α경험계수법급강보돈내표법교정기체효응,경대국가표준물급실제양품진행분석,측량치여표준치결과문합.방법적검출한화준학도균만족분석요구,제료Mo,Cs,Ta 3개원소RSD교고,기타원소RSD위0.01%～5.45%.
A rapid multi-element analysis method for clay mineral samples was described.This method utilized a polarized wavelength dispersive X-ray fluorescence spectrometer-Axios PW4400,which had a maximum tube power of 4 000 watts.The method was developed for the determination of As,Mn,Co,Cu,Cr,Dy,Ga,Mo,P,Pb,Rb,S,Sr,Ni,,Cs,Ta,Th,Ti,U,V,Y,Zn,Zr,MgO,KzO,Na_2O,CaO,Fe_2O_3,Al_2O_3,SiO_2 and so on.Thirty elements in clay mineral species were measured by X-ray fluorescence spectrometry with pressed powder pellets.Spectral interferences,in particular the indirect interferences of each element,were studied.A method to distinguish the interference between each other periodic elements in element periodic table was put forward.The measuring conditions and existence were mainly investigated,and the selected background position as well as corrected spectral overlap for the trace elements were also discussed.It was found that the indirect spectral overlap line was the same important as direct spectral overlap line.Due to inducing the effect of indirect spectral overlap,some elements jlike Bi,Sn,W which do not need analysis were also added to the elements channel.The relative standard deviation (RSD) was in the range of 0.01% to 5.45% except three elements Mo,Cs and Ta.The detection limits,precisions and accuracies for most elements using this method can meet the requirements of sample analysis in clay mineral species.
