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Talking about the Quality Acceptance of Reagents and Consumables in Environmental Testing Laboratory

Date:2021/01/06 14:09:51
With the continuous advancement of the sustainable development of society, the state and environmental protection departments have put forward higher requirements for the comprehensiveness and accuracy of environmental testing experimental results. Therefore, reagents and consumables are one of the important factors affecting the environmental testing experimental results. It is also necessary to do a good job of quality acceptance in the current context. Based on this, this article provides an overview of the quality acceptance methods of environmental testing laboratory reagents and consumables for reference.
Environmental testing and experimentation is an important part of environmental management and has a profound impact on the efficient implementation of pollution prevention and control. Among them, there are many types of reagents and consumables in environmental testing laboratories, and the quality level can directly affect the structure of environmental testing experiments. It is necessary for relevant staff to strictly abide by relevant regulations, clarify the specific requirements for the procurement, acceptance and storage of reagents and consumables, and effectively guarantee the quality of reagents and consumables , To lay a solid foundation for giving full play to the economic and ecological benefits of environmental testing experiments.
1.1 Comprehensive evaluation of reagent and consumable suppliers
In the early stage of the quality acceptance of reagents and consumables in environmental testing laboratories, relevant staff must do a good job in comprehensive evaluation of reagents and consumables suppliers. Specifically, the work of environmental testing laboratories is inseparable from the support of reagents and consumables [1]. However, due to the differences in the quality of reagents and consumables in different suppliers or different production batches, it is necessary to select suppliers with higher reputation, good service capabilities and quality management capabilities. Not only that, the environmental testing department also needs to conduct in-depth consultations with suppliers on the goal of maximizing economic benefits, so as to better reduce the cost of environmental testing laboratory reagents and consumables and ensure the smooth development of environmental testing experiments.
1.2 Clarify the quality acceptance content of reagents and consumables
According to the state's express regulations for environmental testing, the quality acceptance work will be carried out after the environmental testing laboratory reagents and consumables are registered in the warehouse. The quality acceptance of reagents and consumables in environmental testing laboratories is divided into two parts: appearance quality acceptance and internal quality acceptance. Relevant staff are required to combine their own testing capabilities and testing standard requirements to screen and process reagents and consumables that can affect the experimental results. Fundamentally improve the accuracy of environmental testing results.
1.3 Planning the scope of quality acceptance of reagents and consumables
In view of environmental testing capabilities and requirements, clarify the scope of quality acceptance of environmental testing laboratory reagents and consumables. Under normal circumstances, the scope of quality acceptance mainly includes reagents and consumables that have a direct impact on the test results, have clear requirements in environmental testing and analysis methods, and have blank values and large fluctuations. For example, in environmental testing experiments, water is one of the most widely used and most consumed consumables and requires strict acceptance.
1.4 Choose the quality acceptance method of reagents and consumables
In the process of quality acceptance of reagents and consumables in environmental testing laboratories, methods such as reagent blanks or sample blanks are usually used for acceptance. Still taking experimental water as an example, environmental testing experimental water needs to use pure water above grade 2, which can be tested for the purity of experimental water, and effectively improve the efficiency and quality of environmental testing laboratory reagents and consumables.
2 Quality acceptance of common reagents and consumables in environmental testing laboratories
2.1 Quality acceptance of carbon disulfide for determination of benzene series
In the process of quality acceptance of carbon disulfide for the determination of benzene series in environmental testing laboratories, 3 bottles of sulfur dioxide used for the determination of benzene series for air detection shall be randomly collected, and samples of them shall be analyzed in accordance with professional procedures. A small amount of carbon disulfide is added to the plug test tube and injected into the gas chromatography, and finally the quality of carbon disulfide used for the determination of benzene series is analyzed.
2.2 Quality acceptance of lead collection filter membrane
In the process of quality acceptance of the lead collection filter membrane in the environmental testing experiment, 3 pieces of air lead collection filter membranes need to be randomly selected, and the electric heating plate is eliminated in the lead collection filter membrane according to the professional process to configure the sample [2]. If the measured values of the three lead collection filters taken are greater than the detection standard, and it indicates that the internal fluctuations of the lead collection filters are too large, it is a substandard reagent.

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