周小林,况云所,杨刚,庞文品,杨博为.阴离子树脂富集-ICP-MS测定地质样品中的痕量铂和钯[J].贵州地质,2018,35(1):65-68 |
阴离子树脂富集-ICP-MS测定地质样品中的痕量铂和钯 |
Determination of Trace of Pt and Pd in Geological Samples by ICP-MS after Separation and Concentration with Anion Exchange Resin |
|
DOI: |
中文关键词: 强碱性阴离子交换树脂 富集 铂 钯 等离子体质谱 |
英文关键词:Strongly basic anion exchange resin Concentration Pt Pd ICP-MS |
基金项目:贵州省地质矿产勘查开发局科研项目(合同编号:黔地矿科合〔2016〕36号) |
|
摘要点击次数: 682 |
全文下载次数: 374 |
中文摘要: |
本文建立了一种快速测定地质样品中Pt、Pd的方法。试样经过700℃高温焙烧后,采用王水-盐酸处理样品,加入强碱性阴离子交换树脂进行振荡吸附,吸附物灰化后,用王水溶解至尽近后,采用5%HCl浸提,采用Rh作为内标,电感耦合等离子体质谱法测定。Pt、Pd的检出限分别为0.2 μg·L-1和0.4 μg·L-1,精密度(RSD,n=12)分别为4.01%,4.19%,加标回收率分别在97.1%103.5%,101.5%103.2%之间,通过对7件国家标准物质(GBW07288GBW07294)进行测定,测定值与标准值基本一致。该方法简单快速、准确度高、精密度良好,测定值与推荐值基本一致。 |
英文摘要: |
A method was developed for quick determination of Pt and Pd in geological samples in this paper.After the calcination at 700℃ and the samples treated by auqaregia-hydrochloric acid.Pt and Pd were absorbed with strongly basic anion exchange resin on a vibrator.The adsorption material is ashed and dissolved with aqua regia, then extracted by 5% HCI.The concentrations of Pt and Pd were determined by ICP-MS internal standard method(Rh as the internal standard).The detection limits obtained were 0.2 μg·L-1or Pt and 0.4μg·L-1 for Pd,RSD were 4.01% for Pt and 4.19% for Pd,recoveries were between 97.1% to 103.5% and 101.5% to 103.2% respectively.By detect 7 national standard sample(GBW07288-GBW07294),the estimate value is consistent with the standard value basically.This method is simple and quick with good accuracy and precision.The determination results matched well with the certified value. |
查看全文 查看/发表评论 下载PDF阅读器 |