Shimadzu TOC Total Carbon Analyzer

According to the "Opinions on Further Strengthening the Control of Plastic Pollution" issued by the National Development and Reform Commission and the Ministry of Ecology and Environment, on January 1, 2021, the new "Plastic Ban Order" was officially implemented, prohibiting the use of non degradable disposable plastic straws in the entire catering industry; Catering and dine in services in built-up areas and scenic spots of cities at or above the prefecture level are prohibited from using non degradable disposable plastic tableware; Supermarkets, shopping malls and other places in municipalities directly under the central government, provincial capital cities and other areas are prohibited from using non degradable plastic bags. As an alternative biodegradable plastic product, it has gradually become an effective way for countries around the world to alleviate plastic pollution. The important performance requirement for biodegradable plastics is their biodegradability rate. Do you know how to solve this problem?

Principle of TOC testing biodegradation rate:

The material undergoes aerobic biodegradation testing under specific conditions, with continuous monitoring and regular measurement of the amount of carbon dioxide produced during the testing process. The ratio of the actual amount of carbon dioxide produced in the experiment to the theoretical amount of carbon dioxide that the material can produce is the biodegradation rate. Due to the fact that only organic carbon in the material can be metabolized by microorganisms, the theoretical release of carbon dioxide is calculated based on the measured value of actual organic carbon in the material.

Shimadzu TOC Total Carbon AnalyzerTOC-LTesting method and equipment configuration plan:

Shimadzu TOC Total Carbon AnalyzerThe TOC-L series products adopt 680 ℃ combustion catalytic oxidation method. This method was developed by Shimadzu and is now widely used in the industry. The measurement range of the analyzer is 4 μ g/L~30000 μ g/L. Can achieve a detection limit of 4 μ g/L. This is the higher detection sensitivity that can be achieved using combustion catalytic oxidation method. In addition, the combustion catalytic oxidation method enables it to effectively oxidize not only easily decomposable low molecular weight organic compounds, but also insoluble and high molecular weight organic compounds that are difficult to decompose.