先起草一个实验室标准操作程序文件吧，至少马上能用

透光镜应该注意定时维护清洁，温室度就不用说了，上面都已经说了！

１、是不是衬管脏了要清洗2、柱子换个新的看看

数据处理程序(InteractivGraphics)中Edit Method/Fill Peak Table下有内标物相关设置内容,不知对否?

你具体分析什么物质，大家可以帮你找找资料看看

另外一台仪器的问题，气相色谱空跑时，基线有规律的出现峰和谷，请问是什么原因啊？

是不是工作站内部程序冲突或者电脑有病毒，重装电脑系统，如果不行，可能要升级工作站。

可能是记忆效应，铁对268应该有干扰吧，

挥发性太强的话要制冷

原文由 damoguyan(damoguyan) 发表:再叫个人看着你，你再加标，做样。。。这么大的偏差貌似你一时短路吧。。。。胡说，1PPM的标样，怎么可能错，如果错也只是一次，但是现在一直有这种情况

根据你分析的组分多少和组分的沸点范围确定，组分少和组分的沸点范围小可以用填充柱，组分多和组分的沸点范围大用毛细柱。

这要看你同时给几台色谱仪供气？如果只连接2台色谱仪以内，可以使用3毫米（外径）的气路管就可以了。如果超过3台，把气路管的尺寸加大些。

用标准曲线法或外标法，用归一法是没有办法的办法，样品纯度越低，准确度也越差。

放在库房呗，不过要布管线，要花钱

Important physical properties of silicon steels include resistivity, saturation induction, magneto-crystalline anisotropy, magnetostriction, and Curie temperature. Resistivity, which is quite low in iron, increases markedly with the addition of silicon. Higher resistivity lessens the core loss by reducing the eddy current component. Raising the silicon content will lower magnetostriction, but processing becomes more difficult. The high Curie temperature of iron will be lowered by alloying elements, but the decrease is of little importance to the user of silicon steels.The magnetization process is influenced by impurities, grain orientation, grain size, strain, strip thickness, and surface smoothness. One of the most important ways to improve soft magnetic materials is to remove impurities, which interfere with domain-wall movement; they are least harmful if present in solid solution. Compared with other commercial steels, silicon steel is exceptionally pure. Because carbon, an interstitial impurity, can harm low induction permeability, it must be removed before the steel is annealed to develop the final texture.The mechanism for the growth of grains with cube-on-edge orientation during the final anneal is not completely understood. The process involves secondary recrystallization, which, by definition, is characterized by accelerated growth of one set of grains in an already recrystallized matrix.For secondary recrystallization, normal grain growth must be inhibited in some manner. As the temperature is raised, certain grains break loose from the inhibiting forces, and grow extensively at the expense of their neighbors. Producers know that, on a practical basis, appropriate cold rolling and recrystallization sequences must be carefully followed to obtain the desired secondary recrystallization nuclei and the correct texture. Today`s silicon steels use MnS as the grain growth inhibitor, but other compounds, such as carbides, oxides, or nitrides, are also effective.

适当给针尖加热，用丙酮什么的热清洗！

我用的设备设定20分钟氩气吹扫，10分钟氩气吹扫。要测定S/P等至少要吹扫4小时

我也是新用户，基本还不会用。

我们用的Thermo Fisher的? 好像好不错的样子? 70多万

你的实验条件改变得太多了，还是一样一样的检查吧；首先：气路维修过，是不是没接好，漏气？氢气流量不稳定，致火焰不稳？其次：是否改变了放大器的参数？