立静致远
第2楼2007/09/20
但我们有份资料,它检测F 含量的,用的是FID,检测原理如下:
The sample is dispersed in sodium chloride solution; the fluoride is then converted in acidic conditions to its trimethylfluorosilane derivative that is extracted with toluene containing n-pentane as internal standard. The fluoride is determined by capillary gas chromatography and calculated by peak area integration with reference
to a previously determined response factor or a calibration graph.
在检测器的选择上有何经验可取呢?谢谢