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A new method for calibrating the current gain of 10 ^{1313 Ω amplifiers in thermal ionization mass spectrometry}

机译：一种新方法，用于校准10 ^{13 13Ω放大器中的热电电离质谱法}

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Abstract > We report a new method for calibrating the current gain of 10 13 ?Ω amplifiers in both positive and negative mode used in thermal ionisation mass spectrometry (TIMS). This method uses any isotopic standard or sample to calibrate the gain factor as long as it can produce a stable current signal. It is simpler and more flexible than that recommended by Thermo‐Fisher (the manufacture of the TIMS). In these analyses, the gains of five 10 13 ?Ω amplifiers were assessed. The precision of gain factors was better than 100?ppm (2 RSD) in a day, and the long‐term reproducibility was better than 300?ppm (2 RSD) within 2 to 8?months. After a gain was calibrated, the ratio accuracy and precision in the positive mode for 87 Sr/ 88 Sr of NIST 987 Sr and 143 Nd/ 144 Nd of La Jolla Nd were 0.710242?±?60 (2 SD, <fi>n</fi> ?=?14) and 0.511842?±?10 (2 SD, <fi>n</fi> ?=?22), respectively, at intensities of 88 Sr 0.3?V and 142 Nd 0.4?V, while in the negative mode for 187 Os/ 188 Os of Merck Os was 0.120229?±?34 (2 SD, <fi>n</fi> ?=?23) at an intensity of 187 OsO <sub>3</sub> 0.01?mV. In addition, a difference in the gain factors between the negative mode TIMS (NTIMS) and positive mode TIMS (PTIMS) has been recognized. The values of the gain factor for NTIMS and PTIMS show a deviation of 0.54% on the Triton and 0.31% on the Triton Plus TIMS in this study; therefore, gain calibration should be carried out on both NTIMS and PTIMS. Moreover, a bias of ~ 1.5? </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><abstract xmlns =“http://www.wiley.com/namespaces/wiley”type =“main”xml：lang =“en”> <title type =“main”>抽象</ title> >我们报告一种新方法，用于校准热电电离质谱（TIMS）中使用的正极和负模式下的10 <SUP> 13℃的电流增益。该方法使用任何同位素标准或样品来校准增益因子，只要它可以产生稳定的电流信号即可。它比Thermo-Fisher（Tims的制造）更简单，更灵活。在这些分析中，评估了五个10 13 </ sup>ω的增长。增益因子的精度优于100？PPM（2 rsd）在一天内，长期再现性在2至8个月内超过300？ppm（2 rsd）。在校准增益之后，NIST 987 SR和<SUP> 143 </ SUP> ND / LIC> 88 / SR的阳性模式中的比例精度和精度。 144 </ sup> la jolla nd的nd为0.710242≤60（2 sd，<fi>α=Δ14）和0.511842？±10（2 sd，<fi> n分别在 88 </ sup> sr 0.3Δv和 142 </ sup> nd 0.4 v的强度下，同时在负模式下187 </ sup> erck OS的OS / 188 </ sup>操作系统在 187的强度下为0.120229？±34（2 sd，<fi> n </ fi>？=？23） </ sup> oso <sub> 3 </ sub> 0.01？mv。另外，已经识别了负模式TIMS（NTIMS）和正模式TIMS（PTIMS）之间的增益因子的差异。 NTIMS和PTIM的增益因子的值显示在TRITON上的偏差为0.54％，在本研究中的TRITON加时0.31％;因此，应在NTIMS和PTIM上进行增益校准。而且，偏差〜1.5？ </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-34906/'>《Journal of mass spectrometry: JMS》</a> <b style="margin: 0 2px;">|</b><span>2018年第6期</span><b style="margin: 0 2px;">|</b><span>共10页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Wang Guiqin&option=202" target="_blank" rel="nofollow">Wang Guiqin;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Zeng Yuling&option=202" target="_blank" rel="nofollow">Zeng Yuling;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Xu Jifeng&option=202" target="_blank" rel="nofollow">Xu Jifeng;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Liu Wengui&option=202" target="_blank" rel="nofollow">Liu Wengui;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>State Key Laboratory of Isotope GeochemistryGuangzhou Institute of Geochemistry Chinese Academy of Sciences510640 Guangzhou China;</p> <p>State Key Laboratory of Isotope GeochemistryGuangzhou Institute of Geochemistry Chinese Academy of Sciences510640 Guangzhou China;</p> <p>China University of Geosciences100083 Beijing China;</p> <p>China University of Geosciences430074 Wuhan China;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/1187.html" title="分析化学">分析化学;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=10 13 ?Ω amplifier&option=203" rel="nofollow">10 13 ?Ω amplifier;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=gain calibration&option=203" rel="nofollow">gain calibration;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=method&option=203" rel="nofollow">method;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=positive and negative ion mode&option=203" rel="nofollow">positive and negative ion mode;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=TIMS&option=203" rel="nofollow">TIMS;</a> </p> <div class="translation"> 机译：10 13？Ω放大器;获得校准;方法;正极和负离子模式;蒂姆; </div> </li> </ul> </div> </div> <div class="literature cardcommon"> <div class="similarity "> <h3 class="all_title" id="enpatent66">相似文献</h3> <div class="similaritytab clearfix"> <ul> <li class="active" >外文文献</li> <li >专利</li> </ul> </div> <div class="similarity_details"> <ul > <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704025633322.html">A new method for calibrating the current gain of 10 <sup xmlns="http://www.wiley.com/namespaces/wiley">1313 Ω amplifiers in thermal ionization mass spectrometry</a> <b>[J]</b> . <span> <a 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A new method for calibrating the current gain of 10 1313 Ω amplifiers in thermal ionization mass spectrometry

摘要

A new method for calibrating the current gain of 10 ^{1313 Ω amplifiers in thermal ionization mass spectrometry}