Device and method for measuring cadmium in water through liquid chromatogram flow injection chemiluminescence
A chemiluminescence method and flow injection technology, applied in the field of environmental chemical monitoring, can solve the problems of long separation time, low extraction efficiency, complicated analysis process, etc.
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[0051] see image 3 , the structure of the extraction chamber 7 is divided into extraction upper layer, extraction turbulence zone 5-4, extraction lower layer and air chamber 5-7 from top to bottom, the extraction upper layer and extraction lower layer are cylindrical, and the extraction turbulence zone 5-4 is formed by an inverted The truncated circular shape and the true truncated circular shape are oppositely formed, and the air chamber 5-7 is conical. The upper separation of the extraction is provided with 4 upper partitions 5-3, the upper partitions 5-3 are made of 75% methylpolysiloxane and 25% polyethylene glycol, and the lower extraction There are 4 lower partitions 5-5 at intervals, and the lower partitions 5-5 are made of 25% methylpolysiloxane and 75% polyethylene glycol, and the air chamber 5-7 and Nitrogen cylinder 6 is connected, see figure 2 A stainless steel microporous plate 5-6 is arranged between the extraction lower layer and the air chamber 5-7, and a m...
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