In order to ensure that the quality of Chinese herbal medicines meets the standards and protect the health of the public, the detection of heavy metal content in Chinese herbal medicines is particularly crucial. With its efficient automation characteristics, the automatic graphite digestion instrument provides a reliable solution for the analysis of heavy metals in Chinese herbal medicines. Below is a detailed description of the protocol for reference.
Purpose of the experiment:
To verify the effectiveness of automatic graphite digestion method in the detection of heavy metal content in Chinese herbal medicines.
1. Experimental instruments:
Automatic graphite digestion instrument.
2. Experimental materials:
1.Reagents: nitric acid, perchloric acid.
2.Sample: American ginseng.
3. Automatic wet digestion method:
1.Weighing samples: accurately weigh the ground Chinese herbal medicine samples 10 g, placed in a Teflon digestion tube.
2.Automatic acid addition and shaking: 8ml nitric acid + 2ml perchloric acid are automatically added, and after shaking for 1min, the bracket descends to the heating module.
3.Automatic program to heat up.
Fourth, the results of digestion
The digest is clarified. The use of automatic graphite digestion instrument, labor-saving, batch processing, high experimental efficiency.
The automatic graphite digestion instrument can select the appropriate temperature and time parameters according to the specific requirements during the program heating process, 2024 Travel Guide to ensure the complete digestion of the sample. With the batch processing capability of a fully automated instrument, multiple samples can be processed at the same time, improving experimental efficiency. During shaking, ensure that the acid is evenly distributed to ensure that the sample is in full contact with the reagent.
By using the automatic graphite digestion method, it not only realizes the efficient detection of heavy metal content in Chinese herbal medicines, but also greatly reduces the complexity of manual operation and improves the accuracy and repeatability of the experiment.