https://qa.antpedia.com/?qa=qa Powered by Question2Answer https://qa.antpedia.com/?qa=67/icpms%E9%9C%80%E8%A6%81%E5%A4%9A%E5%B0%91%E4%BD%93%E7%A7%AF%E6%A0%B7%E5%93%81%E6%BA%B6%E6%B6%B2 <h1 style="\">icpms需要多少体积样品溶液</h1><div></div> 质谱 https://qa.antpedia.com/?qa=67/icpms%E9%9C%80%E8%A6%81%E5%A4%9A%E5%B0%91%E4%BD%93%E7%A7%AF%E6%A0%B7%E5%93%81%E6%BA%B6%E6%B6%B2 Tue, 12 Jun 2018 01:37:44 +0000 https://qa.antpedia.com/?qa=66/%E6%B6%B2%E7%9B%B8%E8%89%B2%E8%B0%B1%E7%9A%84%E5%AE%9E%E9%99%85%E6%B3%B5%E6%B5%81%E9%80%9F%E4%BD%8E%E4%BA%8E%E8%AE%BE%E5%AE%9A%E5%80%BC%EF%BC%8C%E6%98%AF%E4%BB%80%E4%B9%88%E5%8E%9F%E5%9B%A0%EF%BC%9F 液相色谱泵流速比设置的流速要低，为什么？ 质谱 https://qa.antpedia.com/?qa=66/%E6%B6%B2%E7%9B%B8%E8%89%B2%E8%B0%B1%E7%9A%84%E5%AE%9E%E9%99%85%E6%B3%B5%E6%B5%81%E9%80%9F%E4%BD%8E%E4%BA%8E%E8%AE%BE%E5%AE%9A%E5%80%BC%EF%BC%8C%E6%98%AF%E4%BB%80%E4%B9%88%E5%8E%9F%E5%9B%A0%EF%BC%9F Fri, 25 May 2018 02:01:44 +0000 https://qa.antpedia.com/?qa=24/%E8%AF%B7%E9%97%AE%E8%B4%A8%E8%B0%B1%E5%9B%BE%E4%B8%AD%E9%BB%91%E7%90%83%E6%8C%87%E5%90%91%E7%99%BD%E7%90%83%E6%98%AF%E4%BB%80%E4%B9%88%E6%84%8F%E6%80%9D%EF%BC%9F&show=65#a65 <p><strong style="\">分别表示质子数不同的两种原子</strong></p> https://qa.antpedia.com/?qa=24/%E8%AF%B7%E9%97%AE%E8%B4%A8%E8%B0%B1%E5%9B%BE%E4%B8%AD%E9%BB%91%E7%90%83%E6%8C%87%E5%90%91%E7%99%BD%E7%90%83%E6%98%AF%E4%BB%80%E4%B9%88%E6%84%8F%E6%80%9D%EF%BC%9F&show=65#a65 Thu, 24 May 2018 11:30:27 +0000 https://qa.antpedia.com/?qa=45/%E6%88%91%E9%97%AE%E4%B8%AA%E9%97%AE%E9%A2%98%E5%8A%B3%E7%83%A6%E5%A4%A7%E5%AE%B6%E5%B8%AE%E5%BF%99%EF%BC%8C%E6%80%A5%E6%80%A5%E6%80%A5&show=64#a64 <div class="\" style="\"><strong style="\">醇类化合物的裂解主要是</strong><strong style="\">β</strong><strong style="\">裂解（最强）但也存在</strong><strong style="\">γ</strong><strong style="\">，</strong><strong style="\">δ</strong><strong style="\">等裂解，但其相应丰度小，例正戊醇</strong></div><div class="\" style="\"><span style="\">•</span><strong style="\">CH</strong><strong style="\">3</strong><strong style="\">—CH</strong><strong style="\">2</strong><strong style="\">—CH</strong><strong style="\">2</strong><strong style="\">—CH</strong><strong style="\">2</strong><strong style="\">—CH</strong><strong style="\">2</strong><strong style="\">OH</strong></div><div class="\" style="\"><strong style="\">73</strong><strong style="\">（</strong><strong style="\">0.1</strong><strong style="\">）</strong><strong style="\">59</strong><strong style="\">（</strong><strong style="\">1.2</strong><strong style="\">）</strong><strong style="\">45</strong><strong style="\">（</strong><strong style="\">8.2</strong><strong style="\">）</strong><strong style="\">m/e 31</strong><strong style="\">（</strong><strong style="\">100</strong><strong style="\">）</strong></div> https://qa.antpedia.com/?qa=45/%E6%88%91%E9%97%AE%E4%B8%AA%E9%97%AE%E9%A2%98%E5%8A%B3%E7%83%A6%E5%A4%A7%E5%AE%B6%E5%B8%AE%E5%BF%99%EF%BC%8C%E6%80%A5%E6%80%A5%E6%80%A5&show=64#a64 Thu, 24 May 2018 11:26:15 +0000 https://qa.antpedia.com/?qa=47/%E6%80%8E%E4%B9%88%E5%88%A4%E6%96%AD%E6%89%8B%E9%87%8C%E7%9A%84%E8%82%9D%E7%B4%A0%E9%92%A0%E6%98%AF%E6%AD%A3%E5%B8%B8%E7%9A%84%E8%BF%98%E6%98%AF%E4%BD%8E%E5%88%86%E5%AD%90%E7%9A%84&show=63#a63 <p><span style="\">普通的肝素钠的分子量是15000 ,低分子肝素4500-5000，</span></p> https://qa.antpedia.com/?qa=47/%E6%80%8E%E4%B9%88%E5%88%A4%E6%96%AD%E6%89%8B%E9%87%8C%E7%9A%84%E8%82%9D%E7%B4%A0%E9%92%A0%E6%98%AF%E6%AD%A3%E5%B8%B8%E7%9A%84%E8%BF%98%E6%98%AF%E4%BD%8E%E5%88%86%E5%AD%90%E7%9A%84&show=63#a63 Thu, 24 May 2018 11:20:49 +0000 https://qa.antpedia.com/?qa=32/%E5%9C%A8%E8%B4%A8%E8%B0%B1%E5%88%86%E6%9E%90%E4%B8%AD-%E9%87%87%E7%94%A8%E4%BD%95%E7%A7%8D%E6%96%B9%E6%B3%95%E6%8F%90%E9%AB%98%E5%88%86%E5%AD%90%E7%A6%BB%E5%AD%90%E5%B3%B0%E5%BC%BA%E5%BA%A6&show=61#a61 1、降低电子轰击能量,2、针对不同的样品分子选择适合的电离方式，3、制备易挥发衍生物。 https://qa.antpedia.com/?qa=32/%E5%9C%A8%E8%B4%A8%E8%B0%B1%E5%88%86%E6%9E%90%E4%B8%AD-%E9%87%87%E7%94%A8%E4%BD%95%E7%A7%8D%E6%96%B9%E6%B3%95%E6%8F%90%E9%AB%98%E5%88%86%E5%AD%90%E7%A6%BB%E5%AD%90%E5%B3%B0%E5%BC%BA%E5%BA%A6&show=61#a61 Thu, 24 May 2018 11:18:20 +0000 https://qa.antpedia.com/?qa=48/%E8%B4%A8%E8%B0%B1%E5%88%86%E6%9E%90%E8%BD%AF%E4%BB%B6%EF%BC%8C%E6%98%AF%E5%9C%A8%E5%88%86%E6%9E%90%E6%B5%8B%E8%AF%95%E7%99%BE%E7%A7%91%E7%BD%91%E4%B9%88&show=59#a59 可以在分析测试百科网查找，他们在质谱方面非常专业！ https://qa.antpedia.com/?qa=48/%E8%B4%A8%E8%B0%B1%E5%88%86%E6%9E%90%E8%BD%AF%E4%BB%B6%EF%BC%8C%E6%98%AF%E5%9C%A8%E5%88%86%E6%9E%90%E6%B5%8B%E8%AF%95%E7%99%BE%E7%A7%91%E7%BD%91%E4%B9%88&show=59#a59 Thu, 24 May 2018 11:11:39 +0000 https://qa.antpedia.com/?qa=34/%E8%AF%B7%E9%97%AE%E8%B4%A8%E8%B0%B1%E6%89%AB%E6%8F%8F%E8%8C%83%E5%9B%B4%E5%8F%AF%E4%BB%A5%E4%BB%8Em-z-0%E5%BC%80%E5%A7%8B%E5%90%97&show=58#a58 所谓可以，是指你要看到那个物质啊，你如果看到的全是背景，后面的那个真正要看的，你看不到了。所以，从0没有任何意义（检测器还要线性范围呢）<br /> <br /> 质谱灵敏度很高，在GC-MS时，要排除掉至少He的（m/z =2），其实还有溶剂的。那么最好就是50以上开始扫描了。<br /> <br /> 在LC-MS时，也是50以上，其实实际做得200以上。 https://qa.antpedia.com/?qa=34/%E8%AF%B7%E9%97%AE%E8%B4%A8%E8%B0%B1%E6%89%AB%E6%8F%8F%E8%8C%83%E5%9B%B4%E5%8F%AF%E4%BB%A5%E4%BB%8Em-z-0%E5%BC%80%E5%A7%8B%E5%90%97&show=58#a58 Thu, 24 May 2018 10:35:03 +0000 https://qa.antpedia.com/?qa=51/%E6%B1%82%E5%8A%A9%E5%87%A0%E4%B8%AA%E8%B4%A8%E8%B0%B1%E7%9A%84%E5%9F%BA%E6%9C%AC%E5%8F%82%E6%95%B0%EF%BC%8C%E6%B1%82%E8%AF%A6%E7%BB%86%E5%97%B7oao&show=57#a57 TOF：飞行时间，Time of flight<br /> <br /> m/z：mass to charge ratio，质荷比<br /> <br /> PMF：protein mass fingerprint &nbsp;蛋白质量指纹<br /> <br /> Massgram？确定是这个词儿么？不知道是啥意思？ https://qa.antpedia.com/?qa=51/%E6%B1%82%E5%8A%A9%E5%87%A0%E4%B8%AA%E8%B4%A8%E8%B0%B1%E7%9A%84%E5%9F%BA%E6%9C%AC%E5%8F%82%E6%95%B0%EF%BC%8C%E6%B1%82%E8%AF%A6%E7%BB%86%E5%97%B7oao&show=57#a57 Thu, 24 May 2018 10:30:41 +0000 https://qa.antpedia.com/?qa=54/%E7%99%BD%E8%9B%8B%E7%99%BD%E7%9A%84%E7%94%9F%E7%90%86%E4%BD%9C%E7%94%A8%E9%83%BD%E6%9C%89%E5%93%AA%E4%BA%9B%EF%BC%9F&show=56#a56 血蛋白的作用比较大，医学上对其的需求也比较多。 https://qa.antpedia.com/?qa=54/%E7%99%BD%E8%9B%8B%E7%99%BD%E7%9A%84%E7%94%9F%E7%90%86%E4%BD%9C%E7%94%A8%E9%83%BD%E6%9C%89%E5%93%AA%E4%BA%9B%EF%BC%9F&show=56#a56 Thu, 24 May 2018 05:27:37 +0000 https://qa.antpedia.com/?qa=53/%E4%BD%93%E5%86%85%E8%BD%AC%E6%9F%93%EF%BC%88entranster%EF%BC%89mirna%E4%B8%8E%E4%B9%B3%E8%85%BA%E7%99%8C%E7%A0%94%E7%A9%B6 MirRNAs不仅参与肿瘤的形成，也与肿瘤的分化和侵袭过程有关。然而，目前检测miRNA表达的方法有很大的缺点，如侵入性和不可再生性。上皮间质转化（EMT）在肿瘤转移和耐药方面具有重要作用。现分享一篇体内转染（Entranster）与mir-200c在乳腺癌细胞上皮间质转化中作用中研究的文献，以供参考。 https://qa.antpedia.com/?qa=53/%E4%BD%93%E5%86%85%E8%BD%AC%E6%9F%93%EF%BC%88entranster%EF%BC%89mirna%E4%B8%8E%E4%B9%B3%E8%85%BA%E7%99%8C%E7%A0%94%E7%A9%B6 Thu, 24 May 2018 05:25:34 +0000 https://qa.antpedia.com/?qa=7/%E5%8F%AF%E5%90%A6%E5%9C%A8%E5%AF%BC%E5%85%A5%E5%92%A8%E8%AF%A2%E4%BF%A1%E6%81%AF%E7%9A%84%E9%A1%B5%E9%9D%A2%EF%BC%8C%E5%9C%A8%E9%80%89%E6%8B%A9%E7%9A%84%E4%BD%8D%E7%BD%AE%E5%8A%A0%E4%B8%80%E4%B8%AA%E5%85%A8%E9%80%89%E7%9A%84%E5%8A%9F%E8%83%BD&show=52#a52 完全可以，没有问题，你可以试试看。 https://qa.antpedia.com/?qa=7/%E5%8F%AF%E5%90%A6%E5%9C%A8%E5%AF%BC%E5%85%A5%E5%92%A8%E8%AF%A2%E4%BF%A1%E6%81%AF%E7%9A%84%E9%A1%B5%E9%9D%A2%EF%BC%8C%E5%9C%A8%E9%80%89%E6%8B%A9%E7%9A%84%E4%BD%8D%E7%BD%AE%E5%8A%A0%E4%B8%80%E4%B8%AA%E5%85%A8%E9%80%89%E7%9A%84%E5%8A%9F%E8%83%BD&show=52#a52 Thu, 24 May 2018 05:22:02 +0000 https://qa.antpedia.com/?qa=50/%E8%B4%A8%E8%B0%B1%E8%89%B2%E8%B0%B1%E5%8A%A0%E5%B7%A5-%EF%BC%8C%E6%80%A5%E6%80%A5%E6%80%A5%E5%9C%B0%E6%96%B9 <p>专业提供质谱仪以及<a target="\" rel="nofollow" href="\">色谱仪</a>的加工，包括各种检测器/真空腔/陶瓷金属焊接，如有需要加我qq<br>56434564</p> https://qa.antpedia.com/?qa=50/%E8%B4%A8%E8%B0%B1%E8%89%B2%E8%B0%B1%E5%8A%A0%E5%B7%A5-%EF%BC%8C%E6%80%A5%E6%80%A5%E6%80%A5%E5%9C%B0%E6%96%B9 Wed, 23 May 2018 10:09:06 +0000 https://qa.antpedia.com/?qa=49/%E8%B4%A8%E8%B0%B1%E5%AE%9A%E9%87%8F%E5%AE%9E%E9%AA%8C%E6%B5%8B%E5%AE%9A%E4%B9%99%E8%85%88%E7%9A%84%E6%9D%82%E8%B4%A8%E5%90%AB%E9%87%8F%EF%BC%8C%E7%BB%93%E6%9E%9C%E5%AE%9E%E9%AA%8C%E7%BB%93%E6%9E%9C%E6%98%BE%E7%A4%BA%E4%BA%A7 <p><span style="\">质谱定量实验测定</span><a class="\" rel="nofollow" href="\" target="\" style="\">乙腈</a><span style="\">的杂质含量，结果实验结果显示产生</span><a class="\" rel="nofollow" href="\" target="\" style="\">CO2</a><span style="\">？？是什么原因，请指教！</span></p> https://qa.antpedia.com/?qa=49/%E8%B4%A8%E8%B0%B1%E5%AE%9A%E9%87%8F%E5%AE%9E%E9%AA%8C%E6%B5%8B%E5%AE%9A%E4%B9%99%E8%85%88%E7%9A%84%E6%9D%82%E8%B4%A8%E5%90%AB%E9%87%8F%EF%BC%8C%E7%BB%93%E6%9E%9C%E5%AE%9E%E9%AA%8C%E7%BB%93%E6%9E%9C%E6%98%BE%E7%A4%BA%E4%BA%A7 Wed, 23 May 2018 10:08:34 +0000 https://qa.antpedia.com/?qa=46/%E6%AD%A4%E4%B8%AD%E6%9C%89%E7%9C%9F%E6%84%8F%EF%BC%8C%E6%AC%B2%E8%BE%A9%E7%94%A8orbi%EF%BC%8C%E7%BB%84%E5%AD%A6%E6%80%9D%E8%B7%AF%E5%8A%A9%E5%8A%9B%E9%A3%9F%E5%93%81%E7%A7%91%E7%A0%94%E8%BF%88%E5%85%A5%E5%A4%A7 <p><span style="\">组学研究如火如荼，为食品科学中诸多微观秘境的发现与揭示提供了崭新的方法学武器。正所谓，此中有真意，欲辩用Orbi，赛默飞以其领先性能的Q ExactiveTM高分辨准确质谱与Bioinformatics产品为食品科学中的组学研究提供了最佳分析平台与完整解决方案。</span><br style="\"><span style="\">1)组学思路助力食品科研迈入</span><a class="\" rel="nofollow" href="\" target="\" style="\">大数据</a><span style="\">时代，基于Q Exactive三位一体的</span><a class="\" rel="nofollow" href="\" target="\" style="\">代谢组学</a><span style="\">实践策略</span><br style="\"><span style="\">2)巧辨脂香—脂质指纹谱表征用于不同食用植物油的分类与识别</span><br style="\"><span style="\">3)白酒香型的隐秘—基于高分辨组学分析在白酒香型鉴别中的应用</span><br style="\"><span style="\">【主讲人】</span><br style="\"><span style="\">王秀嫔，副研究员</span><br style="\"><span style="\">吴泽明，质谱应用工程师</span><br style="\"><span style="\">程明川，赛默飞质谱应用工程师</span></p> https://qa.antpedia.com/?qa=46/%E6%AD%A4%E4%B8%AD%E6%9C%89%E7%9C%9F%E6%84%8F%EF%BC%8C%E6%AC%B2%E8%BE%A9%E7%94%A8orbi%EF%BC%8C%E7%BB%84%E5%AD%A6%E6%80%9D%E8%B7%AF%E5%8A%A9%E5%8A%9B%E9%A3%9F%E5%93%81%E7%A7%91%E7%A0%94%E8%BF%88%E5%85%A5%E5%A4%A7 Wed, 23 May 2018 10:07:33 +0000 https://qa.antpedia.com/?qa=44/%E5%85%B3%E4%BA%8E%E8%B4%A8%E8%B0%B1%E7%9A%84%E5%9F%BA%E6%9C%AC%E5%8E%9F%E7%90%86%EF%BC%8C%E6%80%A5%E6%80%A5%E6%80%A5 这个估计要成为一个很长的帖子！<br /> <br /> 所以先抛砖引玉吧，质谱，说到底是一个检测器，不过是相对复杂的检测器。<br /> <br /> 分类大体可以分为：无机质谱，有机质谱。<br /> <br /> 按照质量分析器的不同分：四极杆，飞行时间，磁质谱，离子阱等等。<br /> <br /> 一般需要和气相，液相等串联使用。 https://qa.antpedia.com/?qa=44/%E5%85%B3%E4%BA%8E%E8%B4%A8%E8%B0%B1%E7%9A%84%E5%9F%BA%E6%9C%AC%E5%8E%9F%E7%90%86%EF%BC%8C%E6%80%A5%E6%80%A5%E6%80%A5 Wed, 23 May 2018 10:06:46 +0000 https://qa.antpedia.com/?qa=43/12%E6%97%A5%E8%AE%B2%E5%BA%A7%E8%AE%A9%E6%82%A8%E4%BD%BF%E7%94%A8%E6%B6%B2%E8%B4%A8%E7%94%A8%E6%B0%AE%E6%B0%94%E5%8F%91%E7%94%9F%E5%99%A8%E6%9B%B4%E5%8A%A0%E5%BE%97%E5%BF%83%E5%BA%94%E6%89%8B <p><span style="\">讲座内容】</span><br style="\"><span style="\">　　目前液质已经成为实验室常规设备，液质需要高流速的</span><a class="\" rel="nofollow" href="\" target="\" style="\">氮气</a><span style="\">流，以前的气体供应多使用氮气钢瓶或者</span><a class="\" rel="nofollow" href="\" target="\" style="\">液氮罐</a><span style="\">，不仅占用空间多、危险系数高，而且永无止境的费用，成本较高。F-DGSi 公司作为分析测试科学领域的技术领军者，有着15年以上的气体发生器的专业服务经验，研发出市场第二的液质用氮气发生器。市场第二的液质用氮气发生器纯度高、整体拥有成本低、使用寿命长，不仅可以保证实验室液质稳定供气，而且还可以具有保护液质的最新设计。液质用氮气发生器已经在中国广泛用于Waters、Agilent 、ABI、ThermoFisher、Bruker、</span><a class="\" rel="nofollow" href="\" target="\" style="\">Shimadzu</a><span style="\">等品牌液质APCI及ESI接口。本次网络讲座将会给大家讲解市场第二的液质用氮气发生器的原理、特点以及应用，相信您会有很大的收获!</span></p> https://qa.antpedia.com/?qa=43/12%E6%97%A5%E8%AE%B2%E5%BA%A7%E8%AE%A9%E6%82%A8%E4%BD%BF%E7%94%A8%E6%B6%B2%E8%B4%A8%E7%94%A8%E6%B0%AE%E6%B0%94%E5%8F%91%E7%94%9F%E5%99%A8%E6%9B%B4%E5%8A%A0%E5%BE%97%E5%BF%83%E5%BA%94%E6%89%8B Wed, 23 May 2018 10:06:26 +0000 https://qa.antpedia.com/?qa=42/25%E6%97%A5%E8%AE%B2%E5%BA%A7-maldi-%E5%88%86%E5%AD%90%E6%88%90%E5%83%8F%E6%9C%80%E6%96%B0%E5%BA%94%E7%94%A8%E8%BF%9B%E5%B1%95%EF%BC%9A%E4%BB%8E%E5%8F%91%E7%8E%B0%E5%88%B0%E9%89%B4%E5%AE%9A <p><span style="\">【内容简介】</span><br style="\"><span style="\">MALDI分子成像是一种利用质谱来检测样品中多种化合物分布的技术。该技术具有无需标记，可同时检测多种化合物，速度快、通量高等特点，在临床组织样本的研究中首先迅速发展起来。近几年，该技术又广泛应用于</span><a class="\" rel="nofollow" href="\" target="\" style="\">脂类</a><span style="\">及药物代谢、微生物代谢等多个领域。</span><br style="\"><span style="\">布鲁克公司一直致力于推动MALDI分子成像技术的发展，从样品前处理的基质喷雾仪到质谱仪、</span><a class="\" rel="nofollow" href="\" target="\" style="\">激光器</a><span style="\">，到数据分析软件，不断推陈出新，在全球MALDI 分子成像领域始终处于领先地位。</span></p> https://qa.antpedia.com/?qa=42/25%E6%97%A5%E8%AE%B2%E5%BA%A7-maldi-%E5%88%86%E5%AD%90%E6%88%90%E5%83%8F%E6%9C%80%E6%96%B0%E5%BA%94%E7%94%A8%E8%BF%9B%E5%B1%95%EF%BC%9A%E4%BB%8E%E5%8F%91%E7%8E%B0%E5%88%B0%E9%89%B4%E5%AE%9A Wed, 23 May 2018 10:06:12 +0000 https://qa.antpedia.com/?qa=41/%E8%B4%A8%E8%B0%B1%E8%89%B2%E8%B0%B1%E5%8A%A0%E5%B7%A5-%E9%99%B6%E7%93%B7%E9%87%91%E5%B1%9E%E7%84%8A%E6%8E%A5 <p><span style="\">专业提供质谱仪以及</span><a class="\" rel="nofollow" href="\" target="\" style="\">色谱仪</a><span style="\">的加工，包括各种检测器/真空腔/陶瓷金属焊接</span></p> https://qa.antpedia.com/?qa=41/%E8%B4%A8%E8%B0%B1%E8%89%B2%E8%B0%B1%E5%8A%A0%E5%B7%A5-%E9%99%B6%E7%93%B7%E9%87%91%E5%B1%9E%E7%84%8A%E6%8E%A5 Wed, 23 May 2018 10:05:43 +0000 https://qa.antpedia.com/?qa=40/%E6%B1%82%E6%8A%8Aesi%E6%B5%8B%E5%AE%8C%E6%95%B4%E8%9B%8B%E7%99%BD%E7%9A%84%E8%B0%B1%E5%9B%BE%E8%BD%AC%E6%8D%A2%E6%88%90%E5%8D%95%E7%94%B5%E8%8D%B7%E8%B0%B1%E5%9B%BE%E7%9A%84%E8%BD%AF%E4%BB%B6 <p><span style="\">已经得到了比较好的多电荷谱图，想转换成点电荷图，大侠知道网上有没有免费的软件呀？</span></p> https://qa.antpedia.com/?qa=40/%E6%B1%82%E6%8A%8Aesi%E6%B5%8B%E5%AE%8C%E6%95%B4%E8%9B%8B%E7%99%BD%E7%9A%84%E8%B0%B1%E5%9B%BE%E8%BD%AC%E6%8D%A2%E6%88%90%E5%8D%95%E7%94%B5%E8%8D%B7%E8%B0%B1%E5%9B%BE%E7%9A%84%E8%BD%AF%E4%BB%B6 Wed, 23 May 2018 10:05:11 +0000 https://qa.antpedia.com/?qa=39/%E6%8A%80%E6%9C%AF%E4%BA%A4%E6%B5%81%E4%BC%9A-%E9%A3%9F%E5%93%81%E6%8E%A5%E8%A7%A6%E6%9D%90%E6%96%99%E4%B8%AD%E6%9C%89%E5%AE%B3%E7%89%A9%E8%B4%A8%E6%A3%80%E6%B5%8B%E6%8A%80%E6%9C%AF <p><span style="\">听专业人士解读，与专家零距离沟通!</span><br style="\"><br style="\"><span style="\">【会议内容】</span><br style="\"><span style="\">随着经济的发展和生活水平的改善和提高，人们越来越重视</span><a class="\" rel="nofollow" href="\" target="\" style="\">食品卫生</a><span style="\">和安全状况。除了食品本身的安全问题，与食品直接接触的材料也会影响食品的质量。前不久的</span><a class="\" rel="nofollow" href="\" target="\" style="\">304不锈钢</a><a class="\" rel="nofollow" href="\" target="\" style="\">电水壶</a><span style="\">事件，让人们意识到与食品直接接触的材料可能会带来安全隐患。</span><br style="\"><a class="\" rel="nofollow" href="\" target="\" style="\">食品接触材料</a><span style="\">及制品可能会在与食品接触的过程中影响食品的气味、味道以及颜色，更可能会释放出一定量的有毒害化学成分如</span><a class="\" rel="nofollow" href="\" target="\" style="\">重金属</a><span style="\">、有毒添加剂，这些化学成分会迁移到食品中而被人体摄入，危害人类健康。</span><br style="\"><span style="\">对</span><a class="\" rel="nofollow" href="\" target="\" style="\">食品接触材料</a><span style="\">安全问题，我们既要重视，也需要科学地理性看待。本次研讨会，</span><a class="\" rel="nofollow" href="\" target="\" style="\">分析测试百科网</a><span style="\">将邀请行业知名专家及仪器厂商，与大家共同探讨食品接触材料中有害物质检测技术及解决方案，诚邀您报名参加。</span></p> https://qa.antpedia.com/?qa=39/%E6%8A%80%E6%9C%AF%E4%BA%A4%E6%B5%81%E4%BC%9A-%E9%A3%9F%E5%93%81%E6%8E%A5%E8%A7%A6%E6%9D%90%E6%96%99%E4%B8%AD%E6%9C%89%E5%AE%B3%E7%89%A9%E8%B4%A8%E6%A3%80%E6%B5%8B%E6%8A%80%E6%9C%AF Wed, 23 May 2018 10:04:52 +0000 https://qa.antpedia.com/?qa=38/%E8%B4%A8%E8%B0%B1%E4%BB%AA%EF%BC%8Cicp-ms%E7%94%A8pfa%E4%BA%9A%E6%B2%B8%E8%92%B8%E9%A6%8F%E9%85%B8%E7%BA%AF%E5%8C%96%E5%99%A8dhj-87%EF%BC%8C%E7%BE%8E%E5%9B%BD <p><span style="\">PFA亚沸蒸馏酸纯化器DHJ-87</span><br style="\"><span style="\">优点：</span><br style="\"><span style="\">- 与成品的优质酸相比，成本低</span><br style="\"><span style="\">- 可以随时按需进行操作。</span><br style="\"><span style="\">- 避免了优质酸</span><a class="\" rel="nofollow" href="\" target="\" style="\">二次污染</a><span style="\">的问题</span><br style="\"><span style="\">特点 ：</span><br style="\"><span style="\">- 结构紧凑，体积小巧</span><br style="\"><span style="\">- 无需外置冷却设备</span><br style="\"><span style="\">- 纯化速度快，易操作</span><br style="\"><span style="\">- PFA</span><a class="\" rel="nofollow" href="\" target="\" style="\">管子</a><span style="\">透明，可直接观察加酸量</span><br style="\"><span style="\">- 仪器后面有单独的废酸的</span><a class="\" rel="nofollow" href="\" target="\" style="\">管子</a><span style="\">，易于清理</span></p> https://qa.antpedia.com/?qa=38/%E8%B4%A8%E8%B0%B1%E4%BB%AA%EF%BC%8Cicp-ms%E7%94%A8pfa%E4%BA%9A%E6%B2%B8%E8%92%B8%E9%A6%8F%E9%85%B8%E7%BA%AF%E5%8C%96%E5%99%A8dhj-87%EF%BC%8C%E7%BE%8E%E5%9B%BD Wed, 23 May 2018 10:04:37 +0000 https://qa.antpedia.com/?qa=37/%E7%BE%8E%E5%9B%BD%E5%8A%A0%E8%81%94%EF%BC%8Cpfa%E4%BA%9A%E6%B2%B8%E8%92%B8%E9%A6%8F%E9%85%B8%E7%BA%AF%E5%8C%96%E5%99%A8%EF%BC%8Cdhj-87%EF%BC%8C%E9%85%B8%E6%8F%90%E7%BA%AF%E5%99%A8 <p><span style="\">可用于去除酸中杂质，提高酸的等级，纯化被污染的酸。</span><br style="\"><span style="\">优点：</span><br style="\"><span style="\">- 与成品的优质酸相比，成本低</span><br style="\"><span style="\">- 可以随时按需进行操作。</span><br style="\"><span style="\">- 避免了优质酸</span><a class="\" rel="nofollow" href="\" target="\" style="\">二次污染</a><span style="\">的问题</span><br style="\"><span style="\">特点 ：</span><br style="\"><span style="\">- 结构紧凑，体积小巧</span><br style="\"><span style="\">- 无需外置冷却设备</span></p> https://qa.antpedia.com/?qa=37/%E7%BE%8E%E5%9B%BD%E5%8A%A0%E8%81%94%EF%BC%8Cpfa%E4%BA%9A%E6%B2%B8%E8%92%B8%E9%A6%8F%E9%85%B8%E7%BA%AF%E5%8C%96%E5%99%A8%EF%BC%8Cdhj-87%EF%BC%8C%E9%85%B8%E6%8F%90%E7%BA%AF%E5%99%A8 Wed, 23 May 2018 10:04:21 +0000 https://qa.antpedia.com/?qa=36/%E8%AF%B7%E9%97%AE%E5%96%B9%E4%B9%99%E9%86%87%E5%8D%8A%E7%90%A5%E7%8F%80%E9%85%B8%E9%85%AF%E5%81%9A%E8%B4%A8%E8%B0%B1%E7%9A%84%E6%9D%A1%E4%BB%B6%E8%A6%81%E6%80%8E%E6%A0%B7%E8%AE%BE%E7%BD%AE%EF%BC%9F <p><span style="\">请问喹乙醇半琥珀酸酯做质谱的条件要怎样设置？</span></p> https://qa.antpedia.com/?qa=36/%E8%AF%B7%E9%97%AE%E5%96%B9%E4%B9%99%E9%86%87%E5%8D%8A%E7%90%A5%E7%8F%80%E9%85%B8%E9%85%AF%E5%81%9A%E8%B4%A8%E8%B0%B1%E7%9A%84%E6%9D%A1%E4%BB%B6%E8%A6%81%E6%80%8E%E6%A0%B7%E8%AE%BE%E7%BD%AE%EF%BC%9F Wed, 23 May 2018 10:04:07 +0000 https://qa.antpedia.com/?qa=35/%E6%B1%82%E5%A4%A7%E7%A5%9E%E5%B8%AE%E5%BF%99%E5%88%86%E6%9E%90%E8%B4%A8%E8%B0%B1%E5%9B%BE%EF%BC%8C%E6%80%A5%E6%80%A5%E6%80%A5 小白一个，我只想知道它的分子量是多少，最好有详细的分析过程，拜托拜托 https://qa.antpedia.com/?qa=35/%E6%B1%82%E5%A4%A7%E7%A5%9E%E5%B8%AE%E5%BF%99%E5%88%86%E6%9E%90%E8%B4%A8%E8%B0%B1%E5%9B%BE%EF%BC%8C%E6%80%A5%E6%80%A5%E6%80%A5 Wed, 23 May 2018 10:03:53 +0000 https://qa.antpedia.com/?qa=33/%E8%B4%A8%E8%B0%B1%E4%BB%AA%E9%9B%BE%E5%8C%96%E5%99%A8%E4%B8%93%E7%94%A8%E6%B8%85%E6%B4%97%E8%AE%BE%E5%A4%87%EF%BC%8C%E8%BF%9B%E5%8F%A3dhj-96%E5%9E%8B%EF%BC%8C%E9%85%B8%E8%92%B8%E6%B8%85%E6%B4%97 <p><span style="\">美国加联进口DHJ-96型酸蒸清洗器</span><br style="\"><br style="\"><br style="\"><span style="\">应用：</span><br style="\"><span style="\">利用沸腾的蒸馏水或酸的蒸汽来清洗反应管、烧杯、</span><a class="\" rel="nofollow" href="\" target="\" style="\">容量瓶</a><span style="\">等，可用于原吸、</span><a class="\" rel="nofollow" href="\" target="\" style="\">ICP</a><span style="\">、ICP-MS、</span><a class="\" rel="nofollow" href="\" target="\" style="\">微波消解</a><span style="\">等容器的清洗。</span><br style="\"><br style="\"><br style="\"><span style="\">特点：</span><br style="\"><span style="\">1、可以对各种材质的容器，如玻璃、</span><a class="\" rel="nofollow" href="\" target="\" style="\">石英</a><span style="\">、</span><a class="\" rel="nofollow" href="\" target="\" style="\">PTFE</a><span style="\">、PFA、</span><a class="\" rel="nofollow" href="\" target="\" style="\">陶瓷</a><span style="\">、</span><a class="\" rel="nofollow" href="\" target="\" style="\">硼硅玻璃</a><span style="\">，进行清洗和预饱和处理。</span><br style="\"><span style="\">2、利用水或酸蒸汽将金属离子从容器表面浸提出来，消除了由于容器污染带来的测量误差。</span><br style="\"><span style="\">3、容器被“新鲜“洁净”的蒸汽连续冲洗，污染后的酸不要再继续使用，从而保证最好的清洗效果。</span><br style="\"><span style="\">4、污染后的酸被引入到废液容器中可以用我们的酸纯化系统清洁后再重新使用。</span><br style="\"><span style="\">5、可观察整个清洗过程，包括酸的量。</span><br style="\"><span style="\">5、顶部开启式清洗罩，操作方便</span><br style="\"><span style="\">6、无需冷却装置，节省水消耗</span><br style="\"><span style="\">7、大容量—可同时处理3个1L的烧杯或最多49个</span><a class="\" rel="nofollow" href="\" target="\" style="\">微波消解</a><span style="\">内管</span></p> https://qa.antpedia.com/?qa=33/%E8%B4%A8%E8%B0%B1%E4%BB%AA%E9%9B%BE%E5%8C%96%E5%99%A8%E4%B8%93%E7%94%A8%E6%B8%85%E6%B4%97%E8%AE%BE%E5%A4%87%EF%BC%8C%E8%BF%9B%E5%8F%A3dhj-96%E5%9E%8B%EF%BC%8C%E9%85%B8%E8%92%B8%E6%B8%85%E6%B4%97 Wed, 23 May 2018 10:03:11 +0000 https://qa.antpedia.com/?qa=31/%E5%87%BA%E5%94%AE%E4%B8%80%E5%8F%B0%E8%B4%A8%E8%B0%B1%E4%BB%AA%EF%BC%8C%E5%A5%BD%E5%A5%BD%E5%A5%BD%E5%A5%BD <p>出全套质谱仪一台，还有附带全套化验设备，用过两年的美国<a target="\" rel="nofollow" href="\">安捷伦</a>进口质谱，有意向的可以试机<br>电话：133333333333</p> 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https://qa.antpedia.com/?qa=29/%E6%B1%82%E5%8A%A9%E6%B2%B9%E5%A2%A8voc%E6%A3%80%E6%B5%8B%EF%BC%8C%E6%80%A5%E6%80%A5%E6%80%A5%E6%80%A5%E6%80%A5%E6%80%A5 Wed, 23 May 2018 10:01:43 +0000 https://qa.antpedia.com/?qa=28/%E7%B4%A7%E6%80%A5%E6%8B%9B%E8%81%98%EF%BC%9A%E8%B4%A8%E8%B0%B1%E7%9B%B8%E5%85%B3%E6%8A%80%E6%9C%AF%E7%A0%94%E5%8F%91%E4%BA%BA%E5%91%98 <p><span style="\">具体工作地点: </span><br style="\"><span style="\">上海宝山 </span><br style="\"><span style="\">薪金: </span><br style="\"><span style="\">面议，可谈 </span><br style="\"><span style="\">学历和研究方向: </span><br style="\"><span style="\">分析化学相关 </span><br style="\"><span style="\">招聘岗位: </span><br style="\"><span style="\">研发人员 </span><br style="\"><span style="\">公司名称: 分析测试百科网</span></p> https://qa.antpedia.com/?qa=28/%E7%B4%A7%E6%80%A5%E6%8B%9B%E8%81%98%EF%BC%9A%E8%B4%A8%E8%B0%B1%E7%9B%B8%E5%85%B3%E6%8A%80%E6%9C%AF%E7%A0%94%E5%8F%91%E4%BA%BA%E5%91%98 Wed, 23 May 2018 10:01:18 +0000 https://qa.antpedia.com/?qa=26/%E6%9C%80%E8%BF%91%E5%9C%A8%E5%81%9A%E6%B6%B2%E7%9B%B8%E8%89%B2%E8%B0%B1%E8%B4%A8%E8%B0%B1%E8%81%94%E7%94%A8%E5%A4%A7%E6%95%B0%E6%8D%AE%E5%88%86%E6%9E%90&show=27#a27 ghtdgbrrnice https://qa.antpedia.com/?qa=26/%E6%9C%80%E8%BF%91%E5%9C%A8%E5%81%9A%E6%B6%B2%E7%9B%B8%E8%89%B2%E8%B0%B1%E8%B4%A8%E8%B0%B1%E8%81%94%E7%94%A8%E5%A4%A7%E6%95%B0%E6%8D%AE%E5%88%86%E6%9E%90&show=27#a27 Wed, 23 May 2018 09:59:19 +0000 https://qa.antpedia.com/?qa=25/%E6%B1%82%E6%8E%A8%E8%8D%90%E4%B8%80%E5%8F%B0%E5%85%A8%E8%87%AA%E5%8A%A8%E6%B6%88%E8%A7%A3%E4%BB%AA%EF%BC%8C%E6%80%A5%E6%80%A5%E6%80%A5 求推荐一台全自动消解仪急！急！急！做、重金属项目，求各位老师帮忙推荐一台全自动消解仪 ，最好是进口的 ，要仪器厂家、型号、价格。先谢过了！ https://qa.antpedia.com/?qa=25/%E6%B1%82%E6%8E%A8%E8%8D%90%E4%B8%80%E5%8F%B0%E5%85%A8%E8%87%AA%E5%8A%A8%E6%B6%88%E8%A7%A3%E4%BB%AA%EF%BC%8C%E6%80%A5%E6%80%A5%E6%80%A5 Wed, 23 May 2018 09:57:41 +0000 https://qa.antpedia.com/?qa=16/2018%E4%B8%8A%E6%B5%B7%E4%BC%98%E4%B8%87%E6%9E%9C%E5%9B%BD%E9%99%85%E6%9E%9C%E8%94%AC%E5%B1%95%E5%AE%8C%E7%BE%8E%E8%90%BD%E5%B9%95-atago%EF%BC%88%E7%88%B1%E6%8B%93%EF%BC%89%E6%94%B6%E8%8E%B7%E6%BB%A1%E6%BB%A1%EF%BC%81&show=23#a23 很棒，perfect。yuo are very beauty https://qa.antpedia.com/?qa=16/2018%E4%B8%8A%E6%B5%B7%E4%BC%98%E4%B8%87%E6%9E%9C%E5%9B%BD%E9%99%85%E6%9E%9C%E8%94%AC%E5%B1%95%E5%AE%8C%E7%BE%8E%E8%90%BD%E5%B9%95-atago%EF%BC%88%E7%88%B1%E6%8B%93%EF%BC%89%E6%94%B6%E8%8E%B7%E6%BB%A1%E6%BB%A1%EF%BC%81&show=23#a23 Wed, 23 May 2018 09:55:14 +0000 https://qa.antpedia.com/?qa=22/%E5%88%9D%E6%9D%A5%E4%B9%8D%E5%88%B0-%E8%AF%B7%E6%95%99%E5%90%84%E4%BD%8D%E5%A4%A7%E7%A5%9E%E5%90%A7%E9%87%8C%E5%93%AA%E4%BD%8D%E5%A4%A7%E7%A5%9E%E5%81%9A%E8%BF%87%E6%A7%B2%E7%9A%AE%E7%B4%A0%E7%9A%84%E6%B6%B2%E8%B4%A8 <p><span style="\">初来乍到 请教各位大神</span><br style="\"><span style="\">吧里哪位大神做过</span><a class="\" rel="nofollow" href="\" target="\" style="\">槲皮素</a><span style="\">的液质或者质谱分析，能出来峰吗？换了n个标品，也没出来[M-H]-峰。。</span></p><p><span style="\"><img src="\" alt="\"></span></p> https://qa.antpedia.com/?qa=22/%E5%88%9D%E6%9D%A5%E4%B9%8D%E5%88%B0-%E8%AF%B7%E6%95%99%E5%90%84%E4%BD%8D%E5%A4%A7%E7%A5%9E%E5%90%A7%E9%87%8C%E5%93%AA%E4%BD%8D%E5%A4%A7%E7%A5%9E%E5%81%9A%E8%BF%87%E6%A7%B2%E7%9A%AE%E7%B4%A0%E7%9A%84%E6%B6%B2%E8%B4%A8 Wed, 23 May 2018 09:54:19 +0000 https://qa.antpedia.com/?qa=14/%E9%AB%98%E6%95%88%E6%B6%B2%E7%9B%B8%E8%89%B2%E8%B0%B1-%E8%92%B8%E5%8F%91%E5%85%89%E6%95%A3%E5%B0%84%E6%A3%80%E6%B5%8B%E6%B3%95%E7%9B%B4%E6%8E%A5%E6%A3%80%E6%B5%8B20-%E7%A7%8D%E6%9C%AA%E8%A1%8D%E7%94%9F%E5%9F%BA&show=21#a21 <p>“2018中国企业信用发展论坛暨第九届诚信公益盛典”于5月19日在北京举行。国家认监委实验室与检测监管部主任乔东出席并演讲。</p><p>　　乔东称，<a target="\" rel="nofollow" href="\">检验检测</a>行业最大的问题是低价竞争，“现在很多领域要向社会招标，招标存在很明显的低价竞争，现在很多招标都按照最低价中标。出现了一个检验检测机构中标的价格，可能他去买试剂做这个实验都做不出来，但是他中标了，因为低价中标”。</p> 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