【最新】GCMS法中饱和脂肪酸与不饱和脂肪酸测定与计算的探讨.doc

GCMS法中饱和脂肪酸与不饱和脂肪酸测定与计算的探讨
of rural drinking water sources, protection of drinking water sources in rural areas时也是有几个三个峰连在一齐，是后实在不行，只能重新购置CP-Sil 88 VARIAN 100m的柱子。
100m的柱子购置回来后就是一个不段的调试，以更能最好的把34种脂肪酸全局部开，这程就不多说了，现在就说说我们最终方法。进样口温度2
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
20度，柱温箱初温150度保持15分钟后以3度每分钟的到220度保持3分钟。柱流速我采用的是恒流模试1ml/min。
MS从第8分钟后才翻开。
也许在些会有很多人在想我为什么要以这个程序，我在些说明一下，每个方法的建立跟操作者是一定的关系，由于本人的一贯的做法都是以节俭时间为主，因脂肪酸在150度才会出峰，所以我会把最低温度设成150度，而脂肪酸根本上在220度就完全出完了，所以最我的温度也只设到220度。哈哈，人懒就是那样的，还有一定会有人在想为什么要用3度每分钟做为升温速率而不用2度或4度每分钟呢？先说一下用4度每分钟时C18：2中顺反异构体根本上有一半重合在一齐了。如果用2度每分钟时C18里的好几个峰根本上也是重合在一齐了，因为升温速率高了各组分的出峰时间都快了，所以会导致沸点相近的物质就会一齐出来了，而升温速率低的会由于溶易出现拖尾从而导致峰从叠。有点一须要注意的是我们做样品时跟我们进标液并不一样，标液浓度的比例根本一致，所以我们选择进样时就不会因为某一样品浓度大而把其它的浓度小的
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
物质峰所掩盖了