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<div class="imotto"></div> </div> </a> <div class="itext"> <div class="nop">因工作需要，需要建立液相检测苯甲酸甲酯的方法（公司是做树脂的，本人以前也没做过液相，完全是懵的）。流动相是甲醇和水（比例是60:40），但是目标峰和杂峰不容易分开，又在流动相中添加了甲酸铵（甲醇:水:甲酸铵为59:40:1）杂峰少了很多，但是目标峰旁边的杂峰还... </div> </div> <div class="iother clearfix"> <a href="" target="_blank"><span class="board_name">分析</span></a> <ul> <li> <i class="iconfont icon-view"></i><span>950</span> </li> <li> <i class="iconfont icon-comment"></i><span>19</span> </li> </ul> </div> </div> </div><div class="list_item clearfix"> <h3 class="ititle"><a href="https://muchong.com/html/202108/14901653.html" target="_blank">钙钛矿量子点编码微载体</a></h3> <div class="icontent"> <a href="https://muchong.com/bbs/space.php?uid=25319758" target="_blank"> <div class="iuser"> <div class="avatar"> <img src="//muchongimg.xmcimg.com/data/emuch_bbs_images/app/noavatar.png"> </div> <div class="iname">绳Panada</div> <div class="imotto"></div> </div> </a> <div class="itext"> <div class="nop">如果带有生物探针的钙钛矿量子点编码的编码微载体没有和探针特定的蛋白质或者抗原（抗体）结合，那么用光照射编码微载体，是否可以激发出特定的荧光，如果不能，那么激发荧光的条件是什么？ </div> </div> <div class="iother clearfix"> <a href="" target="_blank"><span class="board_name">分析</span></a> <ul> <li> <i class="iconfont icon-view"></i><span>450</span> </li> <li> <i class="iconfont icon-comment"></i><span>9</span> </li> </ul> </div> </div> </div><div class="list_item clearfix"> <h3 class="ititle"><a href="https://muchong.com/html/202108/14903165.html" target="_blank">苯系物在甲醇中溶解度</a></h3> <div class="icontent"> <a href="https://muchong.com/bbs/space.php?uid=1487511" target="_blank"> <div class="iuser"> <div class="avatar"> <img src="http://muchongavatar.xmcimg.com/data/avatar/a0/3e/1487511_1498478301.jpg"> </div> <div class="iname">之子于默</div> <div class="imotto"></div> </div> </a> <div class="itext"> <div class="nop">最近在做苯系物的GC分析；水中的苯系物建议使用吹扫捕集的方法，也即是动态顶空；我在网上找到了水中苯系物的溶解度；直接进样，我是用甲醇溶解苯系物，因为其在水中溶解度实在太少，人工污染样品体量都很大；所以就想学下下甲醇中苯系物溶解度；可是甲醇中苯系物的溶解度数据始... </div> </div> <div class="iother clearfix"> <a href="" target="_blank"><span class="board_name">分析</span></a> <ul> <li> <i class="iconfont icon-view"></i><span>300</span> </li> <li> <i class="iconfont icon-comment"></i><span>6</span> </li> </ul> </div> </div> </div><div class="list_item clearfix"> <h3 class="ititle"><a href="https://muchong.com/html/202108/14903252.html" target="_blank">thermo Orbitrap 480</a></h3> <div class="icontent"> <a href="https://muchong.com/bbs/space.php?uid=820129" target="_blank"> <div class="iuser"> <div class="avatar"> <img src="//muchongimg.xmcimg.com/data/emuch_bbs_images/app/noavatar.png"> </div> <div class="iname">yiren98</div> <div class="imotto"></div> </div> </a> <div class="itext"> <div class="nop">有谁用过类似的设备吗，属于QE的升级版吧，有个疑问想接受专业人士普及。就是在测非靶向小分子的时候，正负模式分开测定（即进样两次），和一次进样同时测定正负模式，这两种测定方法有区别吗？因为以前我做fusion,QE的时候，老师都是分开正负做2次，最近用480测，... </div> </div> <div class="iother clearfix"> <a href="" target="_blank"><span class="board_name">分析</span></a> <ul> <li> <i class="iconfont icon-view"></i><span>200</span> </li> <li> <i class="iconfont icon-comment"></i><span>4</span> </li> </ul> </div> </div> </div><div class="list_item clearfix"> <h3 class="ititle"><a href="https://muchong.com/html/202108/14903986.html" target="_blank">寻求江浙沪的高校实验室HPLC测试合作</a></h3> <div class="icontent"> <a href="https://muchong.com/bbs/space.php?uid=784603" target="_blank"> <div class="iuser"> <div class="avatar"> <img src="//muchongimg.xmcimg.com/data/emuch_bbs_images/app/noavatar.png"> </div> <div class="iname">cpudaxiao</div> <div class="imotto"></div> </div> </a> <div class="itext"> <div class="nop">有偿合作，具体站内详谈。最好是比较熟悉HPLC的研究生。男女生不限哈。有兴趣可以具体沟通。谢谢！ </div> </div> <div class="iother clearfix"> <a href="" target="_blank"><span class="board_name">分析</span></a> <ul> <li> <i class="iconfont icon-view"></i><span>350</span> </li> <li> <i class="iconfont icon-comment"></i><span>7</span> </li> </ul> </div> </div> </div><div class="list_item clearfix"> <h3 class="ititle"><a href="https://muchong.com/html/202108/14905700.html" target="_blank">高效液相样品前处理的注意事项</a></h3> <div class="icontent"> <a href="https://muchong.com/bbs/space.php?uid=6276334" target="_blank"> <div class="iuser"> <div class="avatar"> <img src="https://muchongimg.xmcimg.com/oss2/avatar/2e/d5/6276334_1627628937.png"> </div> <div class="iname">lzhhhhhhh</div> <div class="imotto"></div> </div> </a> <div class="itext"> <div class="nop">1、样品预处理方法样品预处理应包括进样前的一切操作。除了称重、溶解、稀释等步骤外,样品需要:①过滤;②萃取;③衍生化(柱前衍生);④液相色谱(低压柱层析)。这些操作可以是手工进行或实行自动化操作。样品预处理的目的是除去干扰物、增加检测器灵敏度(富集)、保护色谱... </div> </div> <div class="iother clearfix"> <a href="" target="_blank"><span class="board_name">分析</span></a> <ul> <li> <i class="iconfont icon-view"></i><span>350</span> </li> <li> <i class="iconfont icon-comment"></i><span>7</span> </li> </ul> </div> </div> </div><div class="list_item clearfix"> <h3 class="ititle"><a href="https://muchong.com/html/202108/14905711.html" target="_blank">comfa的q2问题</a></h3> <div class="icontent"> <a href="https://muchong.com/bbs/space.php?uid=14670586" target="_blank"> <div class="iuser"> <div class="avatar"> <img src="http://thirdqq.qlogo.cn/qqapp/1104753073/9AB532209E117911B0B7E49B2946DF0E/40"> </div> <div class="iname">sir李</div> <div class="imotto"></div> </div> </a> <div class="itext"> <div class="nop">求大佬告知做3d-qsar的时候q2为什么出现负值，N和ONC分别是成分值和最佳主成分值，分别有什么含义么 </div> </div> <div class="iother clearfix"> <a href="" target="_blank"><span class="board_name">分析</span></a> <ul> <li> <i class="iconfont icon-view"></i><span>1000</span> </li> <li> <i class="iconfont icon-comment"></i><span>20</span> </li> </ul> </div> </div> </div><div class="list_item clearfix"> <h3 class="ititle"><a href="https://muchong.com/html/202108/14906251.html" target="_blank">气相色谱-色谱柱</a></h3> <div class="icontent"> <a href="https://muchong.com/bbs/space.php?uid=23097293" target="_blank"> <div class="iuser"> <div class="avatar"> <img src="//muchongimg.xmcimg.com/data/emuch_bbs_images/app/noavatar.png"> </div> <div class="iname">hpqi1310</div> <div class="imotto"></div> </div> </a> <div class="itext"> <div class="nop">气相色谱-色谱柱失效后有哪些表现？其失败原因是什么？ </div> </div> <div class="iother clearfix"> <a href="" target="_blank"><span class="board_name">分析</span></a> <ul> <li> <i class="iconfont icon-view"></i><span>150</span> </li> <li> <i class="iconfont icon-comment"></i><span>3</span> </li> </ul> </div> </div> </div><div class="list_item clearfix"> <h3 class="ititle"><a href="https://muchong.com/html/202108/14907079.html" target="_blank">原子吸收是否能够测定高含量组分（百分之几十）</a></h3> <div class="icontent"> <a href="https://muchong.com/bbs/space.php?uid=23097358" target="_blank"> <div class="iuser"> <div class="avatar"> <img src="//muchongimg.xmcimg.com/data/emuch_bbs_images/app/noavatar.png"> </div> <div class="iname">xhhn6609</div> <div class="imotto"></div> </div> </a> <div class="itext"> <div class="nop">原子吸收是否能够测定高含量组分（百分之几十）？ </div> </div> <div class="iother clearfix"> <a href="" target="_blank"><span class="board_name">分析</span></a> <ul> <li> <i class="iconfont icon-view"></i><span>250</span> </li> <li> <i class="iconfont icon-comment"></i><span>5</span> </li> </ul> </div> </div> </div><div class="list_item clearfix"> <h3 class="ititle"><a href="https://muchong.com/html/202108/14907779.html" target="_blank">大佬们：如何表征氢键的断裂和生成？</a></h3> <div class="icontent"> <a href="https://muchong.com/bbs/space.php?uid=23335271" target="_blank"> <div class="iuser"> <div class="avatar"> <img src="https://muchongimg.xmcimg.com/oss2/avatar/97/c3/23335271_1639289664.png"> </div> <div class="iname">苏醒的石头人</div> <div class="imotto"></div> </div> </a> <div class="itext"> <div class="nop">各位小伙伴们，谁知道用哪种方法表征加热后氢键的断裂和新氢键的形成？谢谢各位啦！ </div> </div> <div class="iother clearfix"> <a href="" target="_blank"><span class="board_name">分析</span></a> <ul> <li> <i class="iconfont icon-view"></i><span>200</span> </li> <li> <i class="iconfont icon-comment"></i><span>4</span> </li> </ul> </div> </div> </div><div class="list_item clearfix"> <h3 class="ititle"><a href="https://muchong.com/html/202108/14908701.html" target="_blank">常见有机溶剂的纯化方法总结</a></h3> <div class="icontent"> <a href="https://muchong.com/bbs/space.php?uid=6276334" target="_blank"> <div class="iuser"> <div class="avatar"> <img src="https://muchongimg.xmcimg.com/oss2/avatar/2e/d5/6276334_1627628937.png"> </div> <div class="iname">lzhhhhhhh</div> <div class="imotto"></div> </div> </a> <div class="itext"> <div class="nop">在实验室里是不是常碰到这种情况：做某个实验，用不同品牌甚至同一品牌不同批次的试剂，能做出完全不同的结果，不同结果的唯一共同点就是奇幻到都能得诺奖……然后买了纯度更高的试剂回来做，结果就是正常的了……化学供应商提供的常用试剂仅可满足一般化学反应的需要。为了确保一... </div> </div> <div class="iother clearfix"> <a href="" target="_blank"><span class="board_name">分析</span></a> <ul> <li> <i class="iconfont icon-view"></i><span>350</span> </li> <li> <i class="iconfont icon-comment"></i><span>7</span> </li> </ul> </div> </div> </div><div class="list_item clearfix"> <h3 class="ititle"><a href="https://muchong.com/html/202108/14909422.html" target="_blank">质谱负离子模式下，往流动相中添加乙酸铵会使目标物产生[M-H+CH3COO-]的离子峰嘛？</a></h3> <div class="icontent"> <a href="https://muchong.com/bbs/space.php?uid=25578847" target="_blank"> <div class="iuser"> <div class="avatar"> <img src="//muchongimg.xmcimg.com/data/emuch_bbs_images/app/noavatar.png"> </div> <div class="iname">coconutyz</div> <div class="imotto"></div> </div> </a> <div class="itext"> <div class="nop">新手小白想试试能不能用负离子模式下，采用乙酸铵水溶液作为流动相进行分析，得到的峰是否只有脱氢峰，会不会有脱氢后加上乙酸根的峰产生呢？看了很多负离子模式的文献，基本都是脱氢峰，没有加上乙酸根的峰。如果有的话，请问这个加了乙酸根的峰强度是怎么样的呀？是不是很弱的呢... </div> </div> <div class="iother clearfix"> <a href="" target="_blank"><span class="board_name">分析</span></a> <ul> <li> <i class="iconfont icon-view"></i><span>200</span> </li> <li> <i class="iconfont icon-comment"></i><span>4</span> </li> </ul> </div> </div> </div><div class="list_item clearfix"> <h3 class="ititle"><a href="https://muchong.com/html/202108/14911306.html" target="_blank">不确定度结果如何表示和报告</a></h3> <div class="icontent"> <a href="https://muchong.com/bbs/space.php?uid=6276334" target="_blank"> <div class="iuser"> <div class="avatar"> <img src="https://muchongimg.xmcimg.com/oss2/avatar/2e/d5/6276334_1627628937.png"> </div> <div class="iname">lzhhhhhhh</div> <div class="imotto"></div> </div> </a> <div class="itext"> <div class="nop">当给出完整的测量结果时，一般应报告其测量不确定度。在实际工作中，正式报告测量结果及其不确定度时，应包括哪些信息，取决于测量目的。1、通常的测量不确定度报告一般应包含如下信息：a)阐明根据实验观测值和输入量到测量结果及其不确定度的方法；b)列出全部不确定度分量，... </div> </div> <div class="iother clearfix"> <a href="" target="_blank"><span class="board_name">分析</span></a> <ul> <li> <i class="iconfont icon-view"></i><span>300</span> </li> <li> <i class="iconfont icon-comment"></i><span>6</span> </li> </ul> </div> </div> </div><div class="list_item clearfix"> <h3 class="ititle"><a href="https://muchong.com/html/202108/14911554.html" target="_blank">电镜，力学性能，微纳加工，成分分析　ｖｘ：1366　2244　655</a></h3> <div class="icontent"> <a href="https://muchong.com/bbs/space.php?uid=24815718" target="_blank"> <div class="iuser"> <div class="avatar"> <img src="//muchongimg.xmcimg.com/data/emuch_bbs_images/app/noavatar.png"> </div> <div class="iname">304650682</div> <div class="imotto"></div> </div> </a> <div class="itext"> <div class="nop">qq：1508075753科研测试，精度高，误差小，测试快1.电镜技术：SEM，TEM，FIB2.形貌分析：表面，内部，三维3.样品制备：SEM制样，TEM制样，EBSD制样，金相制样4.力学性能：常规力学，试样加工，纳米力学5.物理性能：电学测试，磁性测试，... </div> </div> <div class="iother clearfix"> <a href="" target="_blank"><span class="board_name">分析</span></a> <ul> <li> <i class="iconfont icon-view"></i><span>150</span> </li> <li> <i class="iconfont icon-comment"></i><span>3</span> </li> </ul> </div> </div> </div><div class="list_item clearfix"> <h3 class="ititle"><a href="https://muchong.com/html/202108/14914703.html" target="_blank">求助：请问如何分析液体里沉淀物的具体成分？</a></h3> <div class="icontent"> <a href="https://muchong.com/bbs/space.php?uid=1365794" target="_blank"> <div class="iuser"> <div class="avatar"> <img src="//muchongimg.xmcimg.com/data/emuch_bbs_images/app/noavatar.png"> </div> <div class="iname">杨白劳+</div> <div class="imotto"></div> </div> </a> <div class="itext"> <div class="nop">如题。我不是化学科班，向大家请教。请问如何分析液体环境里的具体成分？尤其是沉淀物。我用了ICP，但是只能分析有无某种元素的存在，无法确定具体的化学组态，无法分析沉淀物的组成。向专业的老师求教，谢谢！ </div> </div> <div class="iother clearfix"> <a href="" target="_blank"><span class="board_name">分析</span></a> <ul> <li> <i class="iconfont icon-view"></i><span>200</span> </li> <li> <i class="iconfont icon-comment"></i><span>4</span> </li> </ul> </div> </div> </div><div class="list_item clearfix"> <h3 class="ititle"><a href="https://muchong.com/html/202108/14917493.html" target="_blank">原子吸收分光光度计软件AAWin 总死机</a></h3> <div class="icontent"> <a href="https://muchong.com/bbs/space.php?uid=356479" target="_blank"> <div class="iuser"> <div class="avatar"> <img src="http://muchongavatar.xmcimg.com/data/avatar/1e/b8/356479.jpg"> </div> <div class="iname">milo8482</div> <div class="imotto"></div> </div> </a> <div class="itext"> <div class="nop">太难了，总是死机，不知道为什么，每次都是测个几十个样品就死机，然后就得开机重来，换了台电脑还是死机，win7系统，求可能的原因，只要是可能的都行 </div> </div> <div class="iother clearfix"> <a href="" target="_blank"><span class="board_name">分析</span></a> <ul> <li> <i class="iconfont icon-view"></i><span>150</span> </li> <li> <i class="iconfont icon-comment"></i><span>3</span> </li> </ul> </div> </div> </div><div class="list_item clearfix"> <h3 class="ititle"><a href="https://muchong.com/html/202109/14918834.html" target="_blank">半导体的功函数测定</a></h3> <div class="icontent"> <a href="https://muchong.com/bbs/space.php?uid=591119" target="_blank"> <div class="iuser"> <div class="avatar"> <img src="//muchongimg.xmcimg.com/data/emuch_bbs_images/app/noavatar.png"> </div> <div class="iname">once1970</div> <div class="imotto"></div> </div> </a> <div class="itext"> <div class="nop">请问哪里可以测半导体的功函数? </div> </div> <div class="iother clearfix"> <a href="" target="_blank"><span class="board_name">分析</span></a> <ul> <li> <i class="iconfont icon-view"></i><span>500</span> </li> <li> <i class="iconfont icon-comment"></i><span>10</span> </li> </ul> </div> </div> </div><div class="list_item clearfix"> <h3 class="ititle"><a href="https://muchong.com/html/202109/14918986.html" target="_blank">有关物质控制，可以液相含量减去滴定含量吗</a></h3> <div class="icontent"> <a href="https://muchong.com/bbs/space.php?uid=1355865" target="_blank"> <div class="iuser"> <div class="avatar"> <img src="http://muchongavatar.xmcimg.com/data/avatar/29/46/1355865.jpg"> </div> <div class="iname">仲夏0309</div> <div class="imotto"></div> </div> </a> <div class="itext"> <div class="nop">我们有个杂质和主成分在酸性和碱性条件下，都会变成一种物质，所以现在研究的控制策略为，主成分和杂质液相含量减去主成分的滴定含量，这种合理吗？因为液相本身误差也有2%，怎么能做到控制杂质限度0.15%，求助求助求助 </div> </div> <div class="iother clearfix"> <a href="" target="_blank"><span class="board_name">分析</span></a> <ul> <li> <i class="iconfont icon-view"></i><span>250</span> </li> <li> <i class="iconfont icon-comment"></i><span>5</span> </li> </ul> </div> </div> </div><div class="list_item clearfix"> <h3 class="ititle"><a href="https://muchong.com/html/202109/14919600.html" target="_blank">有哪位能够石油类物质质谱分析？有偿，感谢感谢</a></h3> <div class="icontent"> <a href="https://muchong.com/bbs/space.php?uid=27139310" target="_blank"> <div class="iuser"> <div class="avatar"> <img src="http://qzapp.qlogo.cn/qzapp/1104753073/B5FA9CFE4897EBC6C4A0E20F1504FAF3/100"> </div> <div class="iname">diddidi</div> <div class="imotto"></div> </div> </a> <div class="itext"> <div class="nop">是石油样品，样品送出去检测（气质联用）了，拿到数据结果了，但是只会定性不会定量，请各位帮忙定量分析。有偿，感谢感谢！！！ </div> </div> <div class="iother clearfix"> <a href="" target="_blank"><span class="board_name">分析</span></a> <ul> <li> <i class="iconfont icon-view"></i><span>500</span> </li> <li> <i class="iconfont icon-comment"></i><span>10</span> </li> </ul> </div> </div> </div><div class="list_item clearfix"> <h3 class="ititle"><a href="https://muchong.com/html/202109/14919654.html" target="_blank">关于TOC测试的求助</a></h3> <div class="icontent"> <a href="https://muchong.com/bbs/space.php?uid=2091903" target="_blank"> <div class="iuser"> <div class="avatar"> <img src="//muchongimg.xmcimg.com/data/emuch_bbs_images/app/noavatar.png"> </div> <div class="iname">wt00000110</div> <div class="imotto"></div> </div> </a> <div class="itext"> <div class="nop">本人在送样测试样品toc时，发现配制用的水样就有很多的有机碳，更换了纯净水和实验室制备的水仍旧如此，而且测试要求样品的浓度极低，请问有没有什么toc很低的水呢？或者有没有什么精度比较高的toc测试方法呢？多谢！ </div> </div> <div class="iother clearfix"> <a href="" target="_blank"><span class="board_name">分析</span></a> <ul> <li> <i class="iconfont icon-view"></i><span>200</span> </li> <li> <i class="iconfont icon-comment"></i><span>4</span> </li> </ul> </div> </div> </div><div class="list_item clearfix"> <h3 class="ititle"><a href="https://muchong.com/html/202109/14920562.html" target="_blank">关于电位滴定氢氧化钠和碳酸钠出现等当点个数的疑问</a></h3> <div class="icontent"> <a href="https://muchong.com/bbs/space.php?uid=406116" target="_blank"> <div class="iuser"> <div class="avatar"> <img src="http://muchongavatar.xmcimg.com/data/avatar/04/9c/406116.jpg"> </div> <div class="iname">jihenka</div> <div class="imotto"></div> </div> </a> <div class="itext"> <div class="nop">实验室用了万通的916Ti-TOUCH电位滴定仪，检测氢氧化钠和碳酸钠混合溶液时发现，被测溶液pH值小于11，只有两个等当点，文献报告两个等当点中，第一个等当点pH值大约8，是氢氧化钠中和以及碳酸钠转变为碳酸氢钠，第二个等当点pH值大约4，是碳酸氢钠继续被酸化... </div> </div> <div class="iother clearfix"> <a href="" target="_blank"><span class="board_name">分析</span></a> <ul> <li> <i class="iconfont icon-view"></i><span>350</span> </li> <li> <i class="iconfont icon-comment"></i><span>7</span> </li> </ul> </div> </div> </div><div class="list_item clearfix"> <h3 class="ititle"><a href="https://muchong.com/html/202109/14921325.html" target="_blank">关于GB/T 14678-1993测标准测硫化物怎么操作?</a></h3> <div class="icontent"> <a href="https://muchong.com/bbs/space.php?uid=14268988" target="_blank"> <div class="iuser"> <div class="avatar"> <img src="http://thirdqq.qlogo.cn/qqapp/1104753073/EA6C421006617DF3DF88F2397CA31653/40"> </div> <div class="iname">雨霁晨天</div> <div class="imotto"></div> </div> </a> <div class="itext"> <div class="nop">需要用此标准测试硫化物，但是手头没有填充柱和能够接填充柱并且带FPD检测器的气相色谱仪，请问有大佬成功用该标准测试过硫化物吗，有相关的测试单位可以委托测试吗？ </div> </div> <div class="iother clearfix"> <a href="" target="_blank"><span class="board_name">分析</span></a> <ul> <li> <i class="iconfont icon-view"></i><span>300</span> </li> <li> <i class="iconfont icon-comment"></i><span>6</span> </li> </ul> </div> </div> </div><div class="list_item clearfix"> <h3 class="ititle"><a href="https://muchong.com/html/202109/14921816.html" target="_blank">HPLC柱选择的问题</a></h3> <div class="icontent"> <a href="https://muchong.com/bbs/space.php?uid=935346" target="_blank"> <div class="iuser"> <div class="avatar"> <img src="http://muchongavatar.xmcimg.com/data/avatar/16/81/935346.jpg"> </div> <div class="iname">406119994</div> <div class="imotto"></div> </div> </a> <div class="itext"> <div class="nop">样品是苯酚和亚磷酸二苯酯的混合物，要测苯酚含量（大约在10-15%）。因为亚磷酸二苯酯容易水解，所以流动相一直用100%的乙腈，0.5mL/min的流速，但是这种条件下，用通用的C18柱效果不好两个峰几乎分不开，目前我使用的C18柱，型号是月旭的Ultimat... </div> </div> <div class="iother clearfix"> <a href="" target="_blank"><span class="board_name">分析</span></a> <ul> <li> <i class="iconfont icon-view"></i><span>450</span> </li> <li> <i class="iconfont icon-comment"></i><span>9</span> </li> </ul> </div> </div> </div><div class="list_item clearfix"> <h3 class="ititle"><a href="https://muchong.com/html/202109/14924977.html" target="_blank">环己烷和水不互溶，能否加入第三组分互溶？</a></h3> <div class="icontent"> <a href="https://muchong.com/bbs/space.php?uid=14052678" target="_blank"> <div class="iuser"> <div class="avatar"> <img src="//muchongimg.xmcimg.com/data/emuch_bbs_images/app/noavatar.png"> </div> <div class="iname">金灵yaya</div> <div class="imotto"></div> </div> </a> <div class="itext"> <div class="nop">最近在做测试，原料除了环己烷还想再引入水，但二者不互溶，想加第三组分让他们互溶，用了乙醇、正己烷、乙酸都不行。想请教各位虫友加什么溶剂可行，谢谢大家！ </div> </div> <div class="iother clearfix"> <a href="" target="_blank"><span class="board_name">分析</span></a> <ul> <li> <i class="iconfont icon-view"></i><span>200</span> </li> <li> <i class="iconfont icon-comment"></i><span>4</span> </li> </ul> </div> </div> </div><div class="list_item clearfix"> <h3 class="ititle"><a href="https://muchong.com/html/202109/14925787.html" target="_blank">内标法做样时，分析样品中内标物加入浓度是否要与标曲的内标物浓度一致？</a></h3> <div class="icontent"> <a href="https://muchong.com/bbs/space.php?uid=749844" target="_blank"> <div class="iuser"> <div class="avatar"> <img src="http://muchongavatar.xmcimg.com/data/avatar/fb/92/749844.jpg"> </div> <div class="iname">303560692</div> <div class="imotto"></div> </div> </a> <div class="itext"> <div class="nop">各位虫友大神：请问内标法做样时，1分析样品中内标物加入浓度是否要与标曲的内标物浓度一致，文献上有的不一致；2内标物可以同时进行几种组分标曲的绘制吗，还是和外标一样单组份比较准确；3纵横（y&x）坐标一般为响应值之比与待测物浓度作标曲，应该可以随意确定吧... </div> </div> <div class="iother clearfix"> <a href="" target="_blank"><span class="board_name">分析</span></a> <ul> <li> <i class="iconfont icon-view"></i><span>200</span> </li> <li> <i class="iconfont icon-comment"></i><span>4</span> </li> </ul> </div> </div> </div><div class="list_item clearfix"> <h3 class="ititle"><a href="https://muchong.com/html/202109/14926401.html" target="_blank">请问核磁氢谱怎么在系统里添加新溶剂？急急</a></h3> <div class="icontent"> <a href="https://muchong.com/bbs/space.php?uid=542449" target="_blank"> <div class="iuser"> <div class="avatar"> <img src="//muchongimg.xmcimg.com/data/emuch_bbs_images/app/noavatar.png"> </div> <div class="iname">clytze_520</div> <div class="imotto"></div> </div> </a> <div class="itext"> <div class="nop">这次的样品用的氘代六氟异丙醇溶解，结果这个溶剂在系统里没有，需要添加，但是不知道怎么弄，问了一圈也没人知道，跪求各位大神帮忙指点一下，谢谢！ </div> </div> <div class="iother clearfix"> <a href="" target="_blank"><span class="board_name">分析</span></a> <ul> <li> <i class="iconfont icon-view"></i><span>150</span> </li> <li> <i class="iconfont icon-comment"></i><span>3</span> </li> </ul> </div> </div> </div><div class="list_item clearfix"> <h3 class="ititle"><a href="https://muchong.com/html/202109/14927065.html" target="_blank">加标供试品溶液如何翻译</a></h3> <div class="icontent"> <a href="https://muchong.com/bbs/space.php?uid=1087658" target="_blank"> <div class="iuser"> <div class="avatar"> <img src="//muchongimg.xmcimg.com/data/emuch_bbs_images/app/noavatar.png"> </div> <div class="iname">longjingjing</div> <div class="imotto"></div> </div> </a> <div class="itext"> <div class="nop">加班供试品溶液如何翻译成英文 </div> </div> <div class="iother clearfix"> <a href="" target="_blank"><span class="board_name">分析</span></a> <ul> <li> <i class="iconfont icon-view"></i><span>300</span> </li> <li> <i class="iconfont icon-comment"></i><span>6</span> </li> </ul> </div> </div> </div><div class="list_item clearfix"> <h3 class="ititle"><a href="https://muchong.com/html/202109/14927934.html" target="_blank">请问下大神们，红外峰一坨是怎么回事，不清晰</a></h3> <div class="icontent"> <a href="https://muchong.com/bbs/space.php?uid=23537833" target="_blank"> <div class="iuser"> <div class="avatar"> <img src="//muchongimg.xmcimg.com/data/emuch_bbs_images/app/noavatar.png"> </div> <div class="iname">卟啉基MOFs</div> <div class="imotto"></div> </div> </a> <div class="itext"> <div class="nop">上面的那个，最近测的数据都是这样 </div> </div> <div class="iother clearfix"> <a href="" target="_blank"><span class="board_name">分析</span></a> <ul> <li> <i class="iconfont icon-view"></i><span>750</span> </li> <li> <i class="iconfont icon-comment"></i><span>15</span> </li> </ul> </div> </div> </div><div class="list_item clearfix"> <h3 class="ititle"><a href="https://muchong.com/html/202109/14928260.html" target="_blank">液体颗粒计数器</a></h3> <div class="icontent"> <a href="https://muchong.com/bbs/space.php?uid=8714534" target="_blank"> <div class="iuser"> <div class="avatar"> <img src="//muchongimg.xmcimg.com/data/emuch_bbs_images/app/noavatar.png"> </div> <div class="iname">liu3031</div> <div class="imotto"></div> </div> </a> <div class="itext"> <div class="nop">请问西安哪里可以提供液体颗粒计数器测试？最好型号是RION理音KE-40B1。 </div> </div> <div class="iother clearfix"> <a href="" target="_blank"><span class="board_name">分析</span></a> <ul> <li> <i class="iconfont icon-view"></i><span>750</span> </li> <li> <i class="iconfont icon-comment"></i><span>15</span> </li> </ul> </div> </div> </div><div class="list_item clearfix"> <h3 class="ititle"><a href="https://muchong.com/html/202109/14930902.html" target="_blank">EDX成分分析结果每次都变化</a></h3> <div class="icontent"> <a href="https://muchong.com/bbs/space.php?uid=23097293" target="_blank"> <div class="iuser"> <div class="avatar"> <img src="//muchongimg.xmcimg.com/data/emuch_bbs_images/app/noavatar.png"> </div> <div class="iname">hpqi1310</div> <div class="imotto"></div> </div> </a> <div class="itext"> <div class="nop">EDX成分分析结果每次都变化？ </div> </div> <div class="iother clearfix"> <a href="" target="_blank"><span class="board_name">分析</span></a> <ul> <li> <i class="iconfont icon-view"></i><span>150</span> </li> <li> <i class="iconfont icon-comment"></i><span>3</span> </li> 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