Details on the preparation of fully optimized instruments
Before the colorimeter is used, relatively complicated preparations of other equipment, raw materials and conditions are required. This preparation stage plays a fundamental role in the operation and measurement of the caliber 4mm pocket colorimeter. The operator should first ensure the adaptability of the ring term during the operation of the meter. Secondly, the setting of the exhaust device should be carried out above the instrument to prevent the occurrence of pollution. In addition, in order to prevent the adverse effect of the test on the results. Checks should be made during preparation to ensure that there are no organic reagents in the chamber. Also, the power supply should be differentiated from the host power supply. In short, the preparation details before the operation of the colorimeter can reduce the impact of risk factors on the basis.
Adjust the state of instrument during operation
The colorimeter is affected by various aspects such as its own operating conditions and external factors during operation. There is also a high risk of compromising the accuracy of the results. Therefore, it is necessary to predict and adjust the state of the accelerator during operation. The first wash should ensure that the instrument has sufficient warm-up time. We know that the main purpose of preheating the lamp is to keep the light source stable, so as to keep the distribution and thickness of the atomic vapor in the lamp constant, and finally make the radiation and self-priming blowing generated by the atomic vapor in the lamp in a stable state to avoid the temperature. The result is that the sensitivity is decreased due to excessively high temperature and excessive radiation. Secondly, the orderly progress of the temperature program should always be ensured, and the necessary optimization of the matrix modifier should be carried out. Especially in the instrumental analysis process of the Shili furnace, the order of the heating program directly affects the temperature level of cremation and atomization, and also has a great influence on the gas-phase chemical interference and background absorption interference. Effective control of this link is crucial to the accuracy of the analysis results. Secondly, in the measurement analysis, if the composition of the matrix is relatively complex, the optimization of the matrix modifier can be carried out. So as to achieve the purpose of eliminating complex matrix or interference and improving repeatability and accuracy. In addition, the selection of the sampling position should be properly controlled. Generally speaking, automatic sampling processing is usually carried out in the process of graphite furnace star measurement and analysis.

At this time, the operator should always observe and adjust the injection state in time, such as the depth and volume lamp parameters, so as to avoid the occurrence of residual samples and reduce the service life of the equipment.
Optimization measures of atomic absorption colorimeter experimental process
The experimental process is a more detailed and professional link in ensuring the accuracy of the colorimeter results. Therefore, controlling this link is of positive significance to improve the accuracy of the results. The optimal control of the experimental process mainly refers to the control of the experimental process, experimental equipment, parameter adjustment and reagent management and control, first of all. In terms of reagents, the reagent blank must be minimized as much as possible, and high-purity acid should be selected for assistance. The acid can be checked for purity before the experiment to ensure the effective retention of the atomic absorption path. Secondly, the cleanliness of the experimental equipment must be ensured during the experiment, and after the experiment, nitric acid and water should be used for comprehensive cleaning and immersion in the regulations to avoid the exchange and contamination of different utensils. Well stored. In addition, the disturbance value of the interest line sample should also be controlled, preferably within the linear range of the calibration curve; at the same time, increasing the parallel measurement to ensure the reliability of the measurement results. All in all, the optimization of the experimental process ensures the stability of the star measurement and helps to improve the accuracy of the results.
In conclusion
In summary, atomic absorption colorimeters are widely used in many fields. Therefore, in the process of use, only by controlling risk factors before and after the operation of the instrument to ensure the stability of internal factors and external environment can it be used for the analysis of stars. The accuracy of the results provides a solid guarantee.