Methods of Analytical Instrument Process Programming and Control
An analytical instrument and process technology, applied in the field of programming and control of the analytical instrument process, can solve problems such as the inability to realize flexible process programming, and achieve the goal of shortening the development and testing cycle, enhancing flexibility and scalability, and improving R&D efficiency. Effect
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[0042] A water quality analysis instrument used to detect the concentration of heavy metal hexavalent chromium in water samples. The basic analysis principle is colorimetric method, and the detection method is standard curve method. The specific detection process is divided into two steps: curve calibration and measurement of the water sample to be tested: firstly, the difference of absorbance before and after color development of a blank standard solution is measured as ΔA 0 , And then measure a certain concentration of hexavalent chromium ion C 1 The difference in absorbance of the standard solution before and after color development is ΔA 1 , Using the concentration of the blank standard solution, C 1 , ΔA 0 And ΔA 1 A standard curve can be made. This work is usually called curve calibration; based on the Lambert-Beer law of colorimetric analysis, if the difference in absorbance of the solution to be tested before and after color development is measured as ΔA, then the six The...
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