The projective grid, whose sampler takes the view rule of human eyes into account, is designed to use the grid in projective-space to take the place of the traditional grid in world-space.
The full-automatic sampler has small volume and light weight and can be used in a narrow space and applied to sample powdery materials containing water.
它是一种体积小、重量轻、能够在狭小的空间使用、对含水分的粉料取样同样能够应用的全自动取样机。
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Methods:The samples were injected into HP-5 capillary colnmn by head- spacesampler and analysed with FID detector with standard addition method.