质谱学报2026，Vol.47Issue(1)：121-128,8.DOI:10.7538/zpxb.2025.0024
沉淀分离-电感耦合等离子体串联质谱法测定高纯铪中钽、硫、磷、银
Determination of Tantalum,Sulfur,Phosphorus and Silver in High Purity Hafnium by ICP-MS/MS Following Precipitation Separation
摘要
Abstract
A method of inductively coupled plasma tandem mass spectrometry(ICP-MS/MS)under O2 and NH3 reaction modes was developed for the determination of tantalum(Ta),sulfur(S),phosphorus(P),and silver(Ag)in high-purity hafnium(Hf),and the reaction mechanisms were investigated.Ammonia precipitation effectively separated the matrix,thus eliminating spectral interferences and matrix effects from zirconium(Zr)and Hf on the determination of Ag and S.However,poor recoveries were observed for the detection of Ta and P,necessitating direct determination.Product ions scanning revealed complex reaction products between Ta+and O2/NH3.After parameter optimization,when the O2 flow rate was set to 45%,the mass-to-charge ratios(m/z)of the first quadrupole(Q1)analyzer and the second quadrupole(Q2)analyzer were established at m/z 181 and 263,respectively,effectively eliminating Hf matrix interference on Ta.At an O2 flow rate of 30%,the primary ion products of P+and S+were 31P16O+(m/z 47)and 32S16O+(m/z 48),respectively,allowing interference-free detection by setting Q2 to these m/z values.Under an NH3 flow rate of 35%,Ag+formed Ag(NH3)2+(m/z 141),which was detected by setting Q1 and Q2 to m/z 107 and 141,respectively.Internal standard correction was performed using scandium(Sc),caesium(Cs),and thallium(Tl),under optimized experimental conditions,the calibration curves for Ta,S,P,and Ag determination exhibited excellent linearity(R2>0.999).The method demonstrated detection limits ranging from 0.000 82 to 0.13 µg/g,with relative standard deviations(RSD,n=11)of 4.3%-9.4%and spiked recoveries of 92%-110%.This method offers low detection limits,high accuracy,and excellent precision,making it suitable for the rapid and accurate determination of trace Ta,S,P,and Ag in high-purity hafnium.关键词
电感耦合等离子体串联质谱(ICP-MS/MS)/高纯铪/沉淀分离/钽/硫/磷/银Key words
inductively coupled plasma-tandem mass spectrometry(ICP-MS/MS)/high purity hafnium/precipitation separation/tantalum/sulfur/phosphorus/silver分类
化学化工引用本文复制引用
李甜,墨淑敏,章程,孙海峰,王立,张晓..沉淀分离-电感耦合等离子体串联质谱法测定高纯铪中钽、硫、磷、银[J].质谱学报,2026,47(1):121-128,8.基金项目
科技部国家重点研发计划(2022YFF0709800) （2022YFF0709800）
