What are the requirements for using homemade standards?
At Shanghai Hengyuan, self-made standard products are among the most popular items. Based on customer feedback and technical recommendations, this week’s technical update from Shanghai Hengyuan Biological Company will focus on homemade standards. We’ll walk you through their usage requirements and important precautions. We welcome all of our friends to exchange knowledge and learn from us.
When conducting tests, it's essential that the use of the standard aligns with existing specifications. Multiple repetitions should be carried out and the results averaged. If the self-made sample meets all required criteria, the average test value can be labeled on the container and stored as a self-made standard. It is recommended that self-made standards be re-verified annually or whenever any changes occur in the standard itself.
1. Ensure the source of the standard is reliable and traceable. Use nationally recognized reference materials and follow verification procedures accordingly.
2. Maintain proper documentation and registration for all standard products. Store them under the specified environmental conditions to ensure stability and accuracy.
3. It is advisable for the supplier to provide detailed instructions for use, including shelf life and storage conditions, to help maintain the integrity of the standard over time.
Here are some of our recommended self-made standard products:
Product Name
English Name
CAS Number
Alanine
D-Alanine
338-69-2
Glycine
Glycine
56-40-6
L-Glutamic Acid
L-Glutamic Acid
56-86-0
L-Arginine
L(+)-Arginine
74-79-3
L-Serine
L-Serine
56-45-1
L-Aspartate
L(+)-Asparagine Monohydrate
5794-13-8
If you're interested in consulting or ordering our standard and reference products, feel free to reach out to our sales representatives. With advanced technology, comprehensive quality control, stable performance, and national shipping options, Shanghai Hengyuan offers competitive pricing and reliable service. Let us support your research and testing needs with confidence and professionalism.
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